CN111345842A

Movatterモバイル変換

Info

Publication number: CN111345842A
Application number: CN201811563737.9A
Authority: CN
Inventors: 廖晓磊; 林穆清; 邹耀贤; 黄永; 王文芳
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2018-12-20
Filing date: 2018-12-20
Publication date: 2020-06-30
Anticipated expiration: 2038-12-20
Also published as: CN111345842B

Abstract

Translated fromChinese

本发明提供的医疗成像设备及其剖面成像方法，通过在第一中间剖面图像上得到的第一参考线，在与第一中间剖面垂直的方向剖切三维图像，得到参考剖面及其参考剖面图像；根据操作者的输入在参考剖面图像上生成目标线，通过目标线在与参考剖面垂直的方向剖切三维图像，得到目标剖面，并将与显示窗口适配的目标剖面图像输出到显示界面。由于第一中间剖面与参考剖面是垂直的关系，参考剖面与目标剖面也是垂直的关系，用户可通过第一参考线、目标线的设置来实现各种角度下对三维图像的剖切，从而得到想要的目标剖面图像，无需传统的多次平移和/或旋转变换，操作方便快捷。

The medical imaging device and its section imaging method provided by the present invention cut the three-dimensional image in the direction perpendicular to the first intermediate section through the first reference line obtained on the first intermediate section image to obtain the reference section and its reference section image ; Generate a target line on the reference section image according to the operator's input, cut the 3D image through the target line in the direction perpendicular to the reference section to obtain the target section, and output the target section image adapted to the display window to the display interface. Since the first intermediate section is in a vertical relationship with the reference section, and the reference section is also in a vertical relationship with the target section, the user can cut the 3D image at various angles by setting the first reference line and the target line, so as to obtain The desired profile image of the target, without the need for traditional multiple translation and/or rotation transformations, is convenient and quick to operate.

Description

Translated fromChinese

一种医疗成像设备及其剖面成像方法A kind of medical imaging equipment and its section imaging method

技术领域technical field

本发明涉及医疗器械领域，具体涉及一种医疗成像设备及其剖面成像方法。The invention relates to the field of medical instruments, in particular to a medical imaging device and a section imaging method thereof.

背景技术Background technique

通过超声扫查可以得到三维体数据，根据三维体数据可得到虚拟立体图像和三维体数据的矢状面、冠状面、横断面剖面图。当医生想查看被检测生物组织的某个剖面时，通常将三维体数据经过多次平移和/或旋转变换，得到需要的剖面图。但这种方式对医生的经验与水平要求很高，并且需要对三维体数据经过多次平移和/或旋转变换操作才能得到想要剖面图像，效率不高。另外，如果医生需要观察弯曲的组织结构的剖面图时，很难通过平移和/或旋转变换得到需要的剖面图。Three-dimensional volume data can be obtained through ultrasound scanning, and virtual stereo images and sagittal, coronal, and cross-sectional profiles of the three-dimensional volume data can be obtained according to the three-dimensional volume data. When a doctor wants to view a certain section of the biological tissue to be detected, the three-dimensional volume data is usually translated and/or rotated multiple times to obtain the required section view. However, this method has high requirements on the experience and level of the doctor, and requires multiple translation and/or rotation transformation operations on the three-dimensional volume data to obtain the desired cross-sectional image, which is inefficient. In addition, if a physician needs to observe a cross-sectional view of a curved tissue structure, it is difficult to obtain the desired cross-sectional view through translation and/or rotational transformation.

发明内容SUMMARY OF THE INVENTION

本发明主要提供一种医疗成像设备及其剖面成像方法，以快捷地得到目标剖面的图像。The present invention mainly provides a medical imaging device and a section imaging method thereof, so as to quickly obtain an image of a target section.

一实施例提供的剖面成像方法，包括如下步骤：A cross-sectional imaging method provided by an embodiment includes the following steps:

获取待成像对象的三维体数据，并将与显示窗口适配的三维图像输出到显示界面；Acquire the 3D volume data of the object to be imaged, and output the 3D image adapted to the display window to the display interface;

通过用三维空间中的任一平面对所述三维图像进行剖切得到平面的第一中间剖面，并将与显示窗口适配的第一中间剖面图像输出到显示界面；A first intermediate section of the plane is obtained by slicing the three-dimensional image with any plane in the three-dimensional space, and the first intermediate section image adapted to the display window is output to the display interface;

根据操作者的输入在所述第一中间剖面图像上生成第一参考线；generating a first reference line on the first intermediate profile image based on operator input;

通过所述第一参考线在与所述第一中间剖面垂直的方向剖切所述三维图像，得到参考剖面，并将与显示窗口适配的参考剖面图像输出到显示界面；Cut the three-dimensional image through the first reference line in a direction perpendicular to the first intermediate section to obtain a reference section, and output the reference section image adapted to the display window to the display interface;

根据操作者的输入在所述参考剖面图像上生成目标线；generating target lines on the reference profile image based on operator input;

通过所述目标线在与所述参考剖面垂直的方向剖切所述三维图像，得到目标剖面，并将与显示窗口适配的目标剖面图像输出到显示界面。The three-dimensional image is cut in a direction perpendicular to the reference section through the target line to obtain a target section, and an image of the target section adapted to the display window is output to the display interface.

一实施例中，所述目标线和/或第一参考线包括直线、曲线和折线中的一种或多种的组合。In one embodiment, the target line and/or the first reference line includes a combination of one or more of straight lines, curved lines and polylines.

一实施例中，所述目标线通过拖曳光标、样条插值和描记中的一种或多种方式组合形成。In one embodiment, the target line is formed by a combination of one or more of dragging the cursor, spline interpolation and tracing.

一实施例中，将与显示窗口适配的参考剖面图像输出到显示界面包括：In one embodiment, outputting the reference profile image adapted to the display window to the display interface includes:

根据预设的显示窗口确定参考剖面图像的大小和坐标系；Determine the size and coordinate system of the reference profile image according to the preset display window;

根据参考剖面图像坐标系和三维图像坐标系之间的变换关系得到参考剖面图像中各像素点对应的三维图像坐标系中的坐标；According to the transformation relationship between the reference profile image coordinate system and the three-dimensional image coordinate system, the coordinates in the three-dimensional image coordinate system corresponding to each pixel in the reference profile image are obtained;

根据参考剖面图像中各像素点对应的三维图像坐标系中的坐标和三维图像对应的三维体数据，得到参考剖面图像中各像素点对应的数据；According to the coordinates in the three-dimensional image coordinate system corresponding to each pixel in the reference cross-section image and the three-dimensional volume data corresponding to the three-dimensional image, the data corresponding to each pixel in the reference cross-section image is obtained;

根据参考剖面图像中各像素点对应的数据控制各像素点的灰度值，从而得到与显示窗口适配的参考剖面图像。The gray value of each pixel is controlled according to the data corresponding to each pixel in the reference profile image, so as to obtain a reference profile image adapted to the display window.

一实施例中，将与显示窗口适配的目标剖面图像输出到显示界面包括：In one embodiment, outputting the target profile image adapted to the display window to the display interface includes:

根据预设的显示窗口确定目标剖面图像的大小和坐标系；Determine the size and coordinate system of the target profile image according to the preset display window;

根据目标剖面图像坐标系和参考剖面图像坐标系之间的变换关系得到目标剖面图像中各像素点对应的参考剖面图像坐标系中的坐标；According to the transformation relationship between the target profile image coordinate system and the reference profile image coordinate system, the coordinates in the reference profile image coordinate system corresponding to each pixel in the target profile image are obtained;

根据参考剖面图像坐标系和三维图像坐标系之间的变换关系得到目标剖面图像中各像素点对应的三维图像坐标系中的坐标；According to the transformation relationship between the reference profile image coordinate system and the three-dimensional image coordinate system, the coordinates in the three-dimensional image coordinate system corresponding to each pixel in the target profile image are obtained;

根据目标剖面图像中各像素点对应的三维图像坐标系中的坐标和三维图像对应的三维体数据，得到目标剖面图像中各像素点对应的数据；According to the coordinates in the three-dimensional image coordinate system corresponding to each pixel point in the target cross-sectional image and the three-dimensional volume data corresponding to the three-dimensional image, the data corresponding to each pixel point in the target cross-sectional image is obtained;

根据目标剖面图像中各像素点对应的数据控制各像素点的灰度值，从而得到与显示窗口适配的目标剖面图像。The gray value of each pixel is controlled according to the data corresponding to each pixel in the target profile image, so as to obtain a target profile image adapted to the display window.

一实施例中，通过所述第一参考线在与所述第一中间剖面垂直的方向剖切所述三维图像，得到参考剖面包括：In one embodiment, the three-dimensional image is cut in a direction perpendicular to the first intermediate section through the first reference line, and obtaining a reference section includes:

通过所述第一参考线在与所述第一中间剖面垂直的方向剖切所述三维图像，得到第二中间剖面，并将与显示窗口适配的第二中间剖面图像输出到显示界面；Cut the three-dimensional image in a direction perpendicular to the first intermediate section through the first reference line to obtain a second intermediate section, and output the second intermediate section image adapted to the display window to the display interface;

根据操作者的输入在所述第二中间剖面图像上生成第二参考线；generating a second reference line on the second mid-section image based on operator input;

通过所述第二参考线在与所述第二中间剖面垂直的方向剖切所述三维图像，得到参考剖面。A reference section is obtained by sectioning the three-dimensional image through the second reference line in a direction perpendicular to the second intermediate section.

一实施例中，所述剖切是指沿视觉深度方向的剖切。In one embodiment, the sectioning refers to sectioning along the visual depth direction.

一实施例中，还包括：In one embodiment, it also includes:

接收用于对所述三维图像、参考剖面、目标线或目标剖面进行平移、旋转和/或显示窗口缩放的指令，根据该指令更新所述目标剖面图像并输出到显示界面。Receive an instruction for translating, rotating and/or zooming the display window on the three-dimensional image, reference section, target line or target section, update the target section image according to the instruction and output to the display interface.

获取通过所述三维图像得到的参考剖面，并将与显示窗口适配的参考剖面图像输出到显示界面；Acquiring the reference profile obtained by the three-dimensional image, and outputting the reference profile image adapted to the display window to the display interface;

一实施例中，所述参考剖面通过用三维空间中的任一平面对所述三维图像进行剖切得到。In one embodiment, the reference section is obtained by slicing the three-dimensional image with any plane in the three-dimensional space.

一实施例中，所述参考剖面由所述三维体数据的矢状面、冠状面或横断面通过平移和/或旋转得到。In one embodiment, the reference section is obtained by translation and/or rotation of the sagittal plane, coronal plane or transverse plane of the three-dimensional volume data.

一实施例中，还包括：In one embodiment, it also includes:

一实施例中，获取待成像对象的三维体数据包括：In one embodiment, acquiring the three-dimensional volume data of the object to be imaged includes:

通过扫描装置对待成像对象进行扫描，得到多个二维图像数据，根据各个二维图像数据的三维空间位置关系将各个二维图像数据整合成三维体数据。The object to be imaged is scanned by the scanning device to obtain a plurality of two-dimensional image data, and each two-dimensional image data is integrated into three-dimensional volume data according to the three-dimensional spatial positional relationship of each two-dimensional image data.

一实施例提供的医疗成像设备,包括：An embodiment provides a medical imaging device, comprising:

人机交互装置，用于接收操作者的输入和输出可视化信息；Human-computer interaction device for receiving the operator's input and output visual information;

处理器，用于获取待成像对象的三维体数据，并将与显示窗口适配的三维图像输出到人机交互装置的显示界面；通过用三维空间中的任一平面对所述三维图像进行剖切得到平面的第一中间剖面，并将与显示窗口适配的第一中间剖面图像输出到所述显示界面；根据操作者的输入在所述第一中间剖面图像上生成第一参考线；通过所述第一参考线在与所述第一中间剖面垂直的方向剖切所述三维图像，得到参考剖面，并将与显示窗口适配的参考剖面图像输出到显示界面；根据操作者的输入在所述参考剖面图像上生成目标线；通过所述目标线在与所述参考剖面垂直的方向剖切所述三维图像，得到目标剖面，并将与显示窗口适配的目标剖面图像输出到显示界面。The processor is used to acquire the three-dimensional volume data of the object to be imaged, and output the three-dimensional image adapted to the display window to the display interface of the human-computer interaction device; cutting a first intermediate section of the plane, and outputting a first intermediate section image adapted to the display window to the display interface; generating a first reference line on the first intermediate section image according to the operator's input; The first reference line cuts the three-dimensional image in a direction perpendicular to the first intermediate section to obtain a reference section, and outputs the reference section image adapted to the display window to the display interface; A target line is generated on the reference section image; the three-dimensional image is cut in a direction perpendicular to the reference section through the target line to obtain a target section, and the target section image adapted to the display window is output to the display interface .

一实施例中，所述处理器将与显示窗口适配的参考剖面图像输出到显示界面包括：In one embodiment, the processor outputting the reference profile image adapted to the display window to the display interface includes:

一实施例中，所述处理器将与显示窗口适配的目标剖面图像输出到显示界面包括：In one embodiment, the processor outputting the target profile image adapted to the display window to the display interface includes:

一实施例中，所述处理器通过所述第一参考线在与所述第一中间剖面垂直的方向剖切所述三维图像，得到参考剖面包括：In one embodiment, the processor cuts the three-dimensional image through the first reference line in a direction perpendicular to the first intermediate section, and obtaining a reference section includes:

一实施例中，所述处理器还用于：In one embodiment, the processor is further configured to:

通过人机交互装置接收用于对所述三维图像、参考剖面、目标线或目标剖面进行平移、旋转和/或显示窗口缩放的指令；根据该指令更新所述目标剖面图像并输出到显示界面。Receive an instruction for translating, rotating and/or zooming the display window on the three-dimensional image, reference section, target line or target section through the human-computer interaction device; update the target section image according to the instruction and output to the display interface.

处理器，用于获取待成像对象的三维体数据，并将与显示窗口适配的三维图像输出到人机交互装置的显示界面；获取通过所述三维图像得到的参考剖面，并将与显示窗口适配的参考剖面图像输出到显示界面；根据操作者的输入在所述参考剖面图像上生成目标线；通过所述目标线在与所述参考剖面垂直的方向剖切所述三维图像，得到目标剖面，并将与显示窗口适配的目标剖面图像输出到显示界面。The processor is used for acquiring the three-dimensional volume data of the object to be imaged, and outputting the three-dimensional image adapted to the display window to the display interface of the human-computer interaction device; acquiring the reference section obtained through the three-dimensional image, and comparing it with the display window The adapted reference section image is output to the display interface; a target line is generated on the reference section image according to the operator's input; the three-dimensional image is cut in a direction perpendicular to the reference section through the target line to obtain a target section, and output the target section image adapted to the display window to the display interface.

一实施例中，还包括扫描装置；所述处理器获取待成像对象的三维体数据包括：In an embodiment, a scanning device is also included; the processor acquiring the three-dimensional volume data of the object to be imaged includes:

通过扫描装置对待成像对象进行扫描，得到多个二维图像数据；根据各个二维图像数据的三维空间位置关系将各个二维图像数据整合成三维体数据。The object to be imaged is scanned by the scanning device to obtain a plurality of two-dimensional image data; each two-dimensional image data is integrated into three-dimensional volume data according to the three-dimensional spatial positional relationship of each two-dimensional image data.

一实施例提供的计算机可读存储介质，包括程序，所述程序能够被处理器执行以实现如上所述的方法。A computer-readable storage medium provided by an embodiment includes a program that can be executed by a processor to implement the above method.

依据上述实施例的医疗成像设备及其剖面成像方法，通过在第一中间剖面图像上得到的第一参考线，在与第一中间剖面垂直的方向剖切三维图像，得到参考剖面及其参考剖面图像；根据操作者的输入在参考剖面图像上生成目标线，通过目标线在与参考剖面垂直的方向剖切三维图像，得到目标剖面，并将与显示窗口适配的目标剖面图像输出到显示界面。由于第一中间剖面与参考剖面是垂直的关系，参考剖面与目标剖面也是垂直的关系，用户可通过第一参考线、目标线的设置来实现各种角度下对三维图像的剖切，从而得到想要的目标剖面图像，无需传统的多次平移和/或旋转变换，操作方便快捷。According to the medical imaging device and the cross-sectional imaging method of the above-mentioned embodiments, the three-dimensional image is cut in a direction perpendicular to the first intermediate cross-section through the first reference line obtained on the first intermediate cross-sectional image to obtain the reference cross-section and its reference cross-section. Image; according to the operator's input, the target line is generated on the reference section image, and the 3D image is cut in the direction perpendicular to the reference section through the target line to obtain the target section, and the target section image adapted to the display window is output to the display interface . Since the first intermediate section is in a vertical relationship with the reference section, and the reference section is also in a vertical relationship with the target section, the user can cut the 3D image at various angles by setting the first reference line and the target line, so as to obtain The desired target profile image, without the need for traditional multiple translation and/or rotation transformations, is convenient and quick to operate.

附图说明Description of drawings

图1为本发明一实施例提供的医疗成像设备的结构框图；FIG. 1 is a structural block diagram of a medical imaging device according to an embodiment of the present invention;

图2为本发明一实施例提供的超声成像设备的结构框图；FIG. 2 is a structural block diagram of an ultrasonic imaging device provided by an embodiment of the present invention;

图3为本发明一实施例提供的剖面成像方法的流程图；3 is a flowchart of a cross-sectional imaging method provided by an embodiment of the present invention;

图4为本发明一实施例提供的剖面成像方法的流程图；4 is a flowchart of a cross-sectional imaging method provided by an embodiment of the present invention;

图5为图4所述方法的图形化示意图。FIG. 5 is a schematic diagram of the method described in FIG. 4 .

具体实施方式Detailed ways

下面通过具体实施方式结合附图对本发明作进一步详细说明。其中不同实施方式中类似元件采用了相关联的类似的元件标号。在以下的实施方式中，很多细节描述是为了使得本申请能被更好的理解。然而，本领域技术人员可以毫不费力的认识到，其中部分特征在不同情况下是可以省略的，或者可以由其他元件、材料、方法所替代。在某些情况下，本申请相关的一些操作并没有在说明书中显示或者描述，这是为了避免本申请的核心部分被过多的描述所淹没，而对于本领域技术人员而言，详细描述这些相关操作并不是必要的，他们根据说明书中的描述以及本领域的一般技术知识即可完整了解相关操作。The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments have used associated similar element numbers. In the following embodiments, many details are described so that the present application can be better understood. However, those skilled in the art will readily recognize that some of the features may be omitted under different circumstances, or may be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application from being overwhelmed by excessive description, and for those skilled in the art, these are described in detail. The relevant operations are not necessary, and they can fully understand the relevant operations according to the descriptions in the specification and general technical knowledge in the field.

另外，说明书中所描述的特点、操作或者特征可以以任意适当的方式结合形成各种实施方式。同时，方法描述中的各步骤或者动作也可以按照本领域技术人员所能显而易见的方式进行顺序调换或调整。因此，说明书和附图中的各种顺序只是为了清楚描述某一个实施例，并不意味着是必须的顺序，除非另有说明其中某个顺序是必须遵循的。Additionally, the features, acts, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can also be exchanged or adjusted in order in a manner obvious to those skilled in the art. Therefore, the various sequences in the specification and drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a necessary order unless otherwise stated, a certain order must be followed.

本文中为部件所编序号本身，例如“第一”、“第二”等，仅用于区分所描述的对象，不具有任何顺序或技术含义。而本申请所说“连接”、“联接”，如无特别说明，均包括直接和间接连接(联接)。The serial numbers themselves, such as "first", "second", etc., for the components herein are only used to distinguish the described objects, and do not have any order or technical meaning. The "connection" and "connection" mentioned in this application, unless otherwise specified, include both direct and indirect connections (connections).

如图1所示，本发明提供的医疗成像设备，包括：扫描装置10，处理器20和人机交互装置30。As shown in FIG. 1 , the medical imaging device provided by the present invention includes: ascanning device 10 , aprocessor 20 and a human-computer interaction device 30 .

人机交互装置30用于接收操作者的输入和输出可视化信息。例如，可以采用触控屏幕，既能接收操作者输入的指令，又能显示可视化信息；也可以采用鼠标、键盘、轨迹球、操纵杆等作为人机交互装置30的输入装置，以接收操作者输入的指令，采用显示器作为人机交互装置30的显示装置以显示可视化信息。The human-computer interaction device 30 is used to receive the operator's input and output visual information. For example, a touch screen can be used, which can not only receive instructions input by the operator, but also display visual information; a mouse, keyboard, trackball, joystick, etc. can also be used as the input device of the human-computer interaction device 30 to receive the operator's input. For the input command, a display is used as the display device of the human-computer interaction device 30 to display visual information.

扫描装置10用于扫描待成像对象，例如扫描生物组织内感兴趣区域，以获取待成像对象的图像数据。Thescanning device 10 is used for scanning an object to be imaged, for example, scanning a region of interest in biological tissue, so as to acquire image data of the object to be imaged.

处理器20用于获取待成像对象的三维体数据，例如从外部设备获取待成像对象的三维体数据，或者根据扫描装置10扫描得到的数据生成待成像对象的三维体数据；根据三维体数据生成待成像对象的三维图像，并将与显示窗口适配的三维图像输出到人机交互装置30的显示界面；获取通过三维图像得到的参考剖面，并将与显示窗口适配的参考剖面图像输出到显示界面；根据操作者的输入在参考剖面图像上生成目标线；通过目标线在与参考剖面垂直的方向剖切三维图像，得到目标剖面，即目标剖面与参考剖面垂直相交且相交线为该目标线，并将与显示窗口适配的目标剖面图像输出到显示界面。可见，操作者通过显示界面不仅能看到待成像对象的三维图像，而且能在三维图像的参考剖面上做目标线，根据目标线和参考剖面得到目标剖面来剖切三维图像，从而得到目标剖面图像，操作简单方便快捷。Theprocessor 20 is used to obtain the three-dimensional volume data of the object to be imaged, for example, obtain the three-dimensional volume data of the object to be imaged from an external device, or generate the three-dimensional volume data of the object to be imaged according to the data scanned by thescanning device 10; The three-dimensional image of the object to be imaged, and output the three-dimensional image adapted to the display window to the display interface of the human-computer interaction device 30; obtain the reference section obtained through the three-dimensional image, and output the reference section image adapted to the display window to Display interface; generate a target line on the reference section image according to the operator's input; cut the 3D image through the target line in the direction perpendicular to the reference section to obtain the target section, that is, the target section and the reference section intersect vertically and the intersecting line is the target line, and output the target profile image that fits the display window to the display interface. It can be seen that the operator can not only see the 3D image of the object to be imaged through the display interface, but also can make a target line on the reference section of the 3D image, and obtain the target section according to the target line and the reference section to cut the 3D image to obtain the target section. image, the operation is simple and convenient.

其中，处理器20根据扫描装置10扫描得到的数据生成待成像对象的三维体数据，可通过扫描装置10对生物组织内的感兴趣区域进行扫描，得到多个二维图像数据；根据各个二维图像数据的三维空间位置关系将各个二维图像数据整合成三维体数据，例如，根据各个二维图像数据的空间位置关系进行坐标变换、插值获得三维体数据中各像素点(体素点)的灰度值，实现三维体数据的三维重建。另外，处理器20还用于对三维体数据进行增强、平滑和去噪等一系列图像处理。Wherein, theprocessor 20 generates three-dimensional volume data of the object to be imaged according to the data scanned by thescanning device 10, and the region of interest in the biological tissue can be scanned by thescanning device 10 to obtain a plurality of two-dimensional image data; The three-dimensional spatial position relationship of the image data integrates each two-dimensional image data into three-dimensional volume data. For example, coordinate transformation and interpolation are performed according to the spatial position relationship of each two-dimensional image data to obtain the position of each pixel (voxel point) in the three-dimensional volume data. Gray value to realize 3D reconstruction of 3D volume data. In addition, theprocessor 20 is also used to perform a series of image processing such as enhancement, smoothing and denoising on the three-dimensional volume data.

本发明可应用于多种医学成像系统，例如超声成像系统、X线成像系统、核磁共振成像(MRI)系统、正电子发射计算机断层扫描成像(PET)系统或者单光子发射计算机断层成像(SPECT)系统，等等；即本发明的医疗成像设备可以是超声成像设备、X射线成像设备、核磁共振设备、正电子发射计算机断层扫描成像设备、单光子发射计算机断层成像设备等。扫描装置10可以对待成像对象进行扫描以获得待成像对象的图像数据。例如，对于超声成像系统，该扫描装置10包括超声探头。对于其他成像系统，该扫描装置10为其相应的对待成像对象进行扫描的装置。而处理器20可以控制扫描装置10或者成像系统实现下文中详细描述的本发明实施例的成像方法。这里，虽然使用了“图像数据”一词描述扫描装置10获得的数据，但是本文中，这里的“图像数据”也可以包含扫描装置10扫描后接收或者获得的未经处理或者已经经过一定处理、但是还没有形成图像时的数据。例如，对于超声成像系统，这里的图像数据也包含探头接收的超声回波后获得的超声回波数据、经过一定处理后的射频数据或者形成超声图像之后的图像数据。The present invention can be applied to a variety of medical imaging systems, such as ultrasound imaging systems, X-ray imaging systems, magnetic resonance imaging (MRI) systems, positron emission computed tomography (PET) systems, or single photon emission computed tomography (SPECT) system, etc.; that is, the medical imaging apparatus of the present invention can be an ultrasound imaging apparatus, an X-ray imaging apparatus, a nuclear magnetic resonance apparatus, a positron emission computed tomography imaging apparatus, a single photon emission computed tomography imaging apparatus, and the like. Thescanning device 10 may scan the object to be imaged to obtain image data of the object to be imaged. For example, for an ultrasound imaging system, thescanning device 10 includes an ultrasound probe. For other imaging systems, thescanning device 10 is a corresponding device for scanning the object to be imaged. And theprocessor 20 may control thescanning device 10 or the imaging system to implement the imaging method of the embodiments of the present invention described in detail below. Here, although the word "image data" is used to describe the data obtained by thescanning device 10, in this document, the "image data" here can also include unprocessed or processed, However, there is no data when the image is formed. For example, for an ultrasonic imaging system, the image data here also includes ultrasonic echo data obtained after ultrasonic echoes received by the probe, radio frequency data after certain processing, or image data after forming an ultrasonic image.

本发明以超声成像设备为例对本发明的实施例进行说明，即本发明以超声成像设备为例来说明。请参考图2，超声成像设备的扫描装置10包括超声探头110，超声成像设备还包括发射/接收控制电路120。The present invention takes an ultrasonic imaging device as an example to describe the embodiments of the present invention, that is, the present invention takes an ultrasonic imaging device as an example to illustrate. Please refer to FIG. 2 , thescanning device 10 of the ultrasonic imaging apparatus includes anultrasonic probe 110 , and the ultrasonic imaging apparatus further includes a transmit/receivecontrol circuit 120 .

超声探头110用于向待成像对象发射超声波，并接收该超声波的回波，获得超声回波信号。Theultrasonic probe 110 is used for transmitting ultrasonic waves to the object to be imaged, and receiving the echoes of the ultrasonic waves to obtain ultrasonic echo signals.

发射/接收控制电路120用于控制超声探头10向待成像对象发射超声波并接收该超声波的回波。具体的，发射/接收控制电路120将经过延迟聚焦的具有一定幅度和极性的超声脉冲发送到超声探头110。超声探头110受超声脉冲的激励，向待成像对象发射超声波，经一定延时后接收从待成像对象反射回来的带有组织信息的超声回波，并将此超声回波重新转换为电信号后输出给处理器20。The transmit/receivecontrol circuit 120 is used to control theultrasonic probe 10 to transmit ultrasonic waves to the object to be imaged and receive echoes of the ultrasonic waves. Specifically, the transmit/receivecontrol circuit 120 transmits the delayed-focused ultrasonic pulse with a certain amplitude and polarity to theultrasonic probe 110 . Theultrasonic probe 110 is excited by the ultrasonic pulse, transmits ultrasonic waves to the object to be imaged, receives the ultrasonic echoes with tissue information reflected from the object to be imaged after a certain delay, and reconverts the ultrasonic echoes into electrical signals. output toprocessor 20 .

在进行超声扫查时，处理器20接收超声探头110转换生成的电信号，获得超声回波信号，并对超声回波信号进行滤波、放大、波束合成等处理，之后进行相关的图像处理得到超声图像，并将超声图像送入人机交互装置的显示器进行显示。During ultrasonic scanning, theprocessor 20 receives the electrical signal converted and generated by theultrasonic probe 110, obtains an ultrasonic echo signal, performs filtering, amplifying, beamforming and other processing on the ultrasonic echo signal, and then performs related image processing to obtain an ultrasonic echo signal. image, and send the ultrasound image to the display of the human-computer interaction device for display.

本发明的实施例中，处理器20还可以实现本发明实施例提供的剖面成像方法，下面结合附图仍然以超声成像设备为例进行详细说明。In the embodiment of the present invention, theprocessor 20 may also implement the cross-sectional imaging method provided by the embodiment of the present invention, which will be described in detail below by taking an ultrasound imaging device as an example with reference to the accompanying drawings.

在一实施例中，剖面成像方法如图3所示，包括如下步骤：In one embodiment, the cross-sectional imaging method is shown in FIG. 3 and includes the following steps:

步骤1、处理器20获取待成像对象的三维体数据，并将与显示窗口适配的三维图像输出到显示界面。Step 1: Theprocessor 20 acquires three-dimensional volume data of the object to be imaged, and outputs a three-dimensional image adapted to the display window to the display interface.

步骤2、处理器20获取通过三维图像得到的参考剖面，并将与显示窗口适配的参考剖面图像输出到显示界面。其中，参考剖面可通过多种方式获取。例如，通过用三维空间中的任一平面对三维图像进行剖切得到；又例如，由三维体数据的矢状面、冠状面或横断面通过平移得到、通过旋转得到、或者通过平移以及旋转得到。当然，参考剖面还可以通过线与剖面的形式得到，将在图4所示的实施例中详细说明。Step 2: Theprocessor 20 acquires the reference section obtained through the three-dimensional image, and outputs the reference section image adapted to the display window to the display interface. Among them, the reference profile can be obtained in various ways. For example, it is obtained by slicing a three-dimensional image with any plane in the three-dimensional space; for example, it is obtained by translation, rotation, or translation and rotation from the sagittal plane, coronal plane or transverse plane of the three-dimensional volume data. . Of course, the reference section can also be obtained in the form of a line and a section, which will be described in detail in the embodiment shown in FIG. 4 .

步骤3、处理器20根据操作者的输入(例如通过人机交互装置30输入)在参考剖面图像上生成目标线。目标线包括直线、曲线和折线中的一种或多种的组合。由于目标线决定了目标剖面，可见目标剖面可以是曲面，方便操作者得到待成像对象各个位置的剖面图像。目标线通过拖曳光标、样条插值和描记中的一种或多种方式组合形成。即，显示界面在显示参考剖面图像的同时，还提供用户的输入操作，例如提供预先设置的直线、曲线或折线等供操作者选择，或者操作者通过人机交互装置30画出目标线，如通过拖曳光标、样条插值或描记的形式得到。当然，在得到目标线后，操作者还可通过人机交互装置30对目标线进行调整操作，如对目标线进行、平移、旋转和/或同步缩放等；还可以根据操作者的输入确定目标线的方向，目标线的方向决定了目标剖面图像的顶部和底部方向，例如，目标线的方向为指向目标剖面图像顶部的方向。Step 3, theprocessor 20 generates a target line on the reference cross-sectional image according to the operator's input (eg, input through the human-computer interaction device 30). The target line includes a combination of one or more of straight lines, curved lines, and polylines. Since the target line determines the target section, the visible target section can be a curved surface, which is convenient for the operator to obtain section images of various positions of the object to be imaged. The target line is formed by a combination of one or more of dragging the cursor, spline interpolation, and tracing. That is, while displaying the reference profile image, the display interface also provides user input operations, such as providing preset straight lines, curves or polylines for the operator to select, or the operator draws a target line through the human-computer interaction device 30, such as Obtained by dragging the cursor, spline interpolation, or tracing. Of course, after obtaining the target line, the operator can also adjust the target line through the human-computer interaction device 30, such as performing, panning, rotating and/or synchronizing the target line, etc.; the target can also be determined according to the operator's input The direction of the line, the direction of the target line determines the top and bottom direction of the target profile image, for example, the direction of the target line is the direction that points to the top of the target profile image.

步骤4、处理器20通过目标线在与参考剖面垂直的方向剖切三维图像，得到目标剖面，并将与显示窗口适配的目标剖面图像输出到显示界面。Step 4: Theprocessor 20 cuts the three-dimensional image through the target line in a direction perpendicular to the reference section to obtain the target section, and outputs the target section image adapted to the display window to the display interface.

在一实施例中，剖面成像方法如图4所示，其细化了图3所示的实施例中的步骤2，结合图5，本实施例将对图4所示的剖面成像方法进行详细描述，具体如下：In one embodiment, the cross-sectional imaging method is shown in FIG. 4 , which refinesstep 2 in the embodiment shown in FIG. 3 . In conjunction with FIG. 5 , this embodiment will detail the cross-sectional imaging method shown in FIG. 4 . description, as follows:

步骤1'、处理器20获取待成像对象的三维体数据，并将与显示窗口适配的三维图像输出到人机交互装置30的显示界面。图5中三维图像所在的空间坐标系为xyz，为方便描述和便于理解，采用xyz坐标系内的长方体作为三维图像的示意。其中，构成三维图像的三维体数据已知，三维体数据包括各个像素点在xyz坐标系下的坐标以及对应的像素值等，三维图像为黑白则像素值包括灰度值，三维图像为彩色则像素值包括色度值和灰度值。Step 1 ′, theprocessor 20 acquires the three-dimensional volume data of the object to be imaged, and outputs the three-dimensional image adapted to the display window to the display interface of the human-computer interaction device 30 . The spatial coordinate system in which the three-dimensional image is located in FIG. 5 is xyz. For the convenience of description and understanding, a cuboid in the xyz coordinate system is used as a schematic representation of the three-dimensional image. Among them, the three-dimensional volume data constituting the three-dimensional image is known, and the three-dimensional volume data includes the coordinates of each pixel in the xyz coordinate system and the corresponding pixel value, etc. If the three-dimensional image is black and white, the pixel value includes the gray value, and the three-dimensional image is in color. Pixel values include chrominance values and grayscale values.

步骤21'、处理器20通过用三维空间中的任一平面对三维图像进行剖切得到平面的第一中间剖面P1，并将与显示窗口适配的第一中间剖面图像P1’输出到显示界面，第一中间剖面图像P1’在显示界面上显示时，以第一中间剖面P1为基准建立新的坐标系x0y0z0，以便于获取第一参考线L1在x0y0z0坐标系中的坐标。第一中间剖面P1可以是预先设置好的，也可以根据操作者的操作生成，例如，其可以是三维体数据的矢状面、冠状面或横断面，也可以由三维体数据的矢状面、冠状面或横断面通过平移得到、通过旋转得到、或者通过平移以及旋转得到。第一中间剖面P1所在xyz坐标系内的各点坐标是已知的，其在坐标系x0y0z0内的各点坐标也是已知的，故根据第一中间剖面P1各点在xyz坐标系的坐标和三维图像对应的三维体数据，得到第一中间剖面P1中各像素点对应的数据；根据第一中间剖面P1中各像素点对应的数据控制各像素点的灰度值，从而得到与显示窗口适配的第一中间剖面图像P1’，控制灰度值对应得到的P1’为黑白图像；或者，根据第一中间剖面P1中各像素点对应的数据控制各像素点的灰度值以及色度值，从而得到与显示窗口适配的第一中间剖面图像P1’，控制灰度值以及色度值对应得到的P1’为彩色图像。本实施例中，将第一中间剖面P1作为坐标系x0y0z0的x0-0-y0平面，使得第一中间剖面图像P1’上的的第一参考线L1在坐标系x0y0z0内的坐标相对简单，简化了处理器20的运算量。Step 21 ′, theprocessor 20 obtains the first intermediate section P1 of the plane by cutting the three-dimensional image with any plane in the three-dimensional space, and outputs the first intermediate section image P1 ′ adapted to the display window to the display interface , when the first intermediate profile image P1' is displayed on the display interface, a new coordinate system x0y0z0 is established based on the first intermediate profile P1, so as to obtain the coordinates of the first reference line L1 in the x0y0z0 coordinate system. The first intermediate profile P1 may be preset or generated according to the operator's operation. For example, it may be a sagittal plane, a coronal plane or a transverse plane of the 3D volume data, or it may be a sagittal plane of the 3D volume data. , coronal or transverse planes are obtained by translation, by rotation, or by translation and rotation. The coordinates of each point in the xyz coordinate system where the first intermediate profile P1 is located are known, and the coordinates of each point in the coordinate system x0y0z0 are also known. Therefore, according to the coordinates of each point of the first intermediate profile P1 in the xyz coordinate system and The three-dimensional volume data corresponding to the three-dimensional image is obtained, and the data corresponding to each pixel point in the first intermediate section P1 is obtained; the gray value of each pixel point is controlled according to the data corresponding to each pixel point in the first intermediate section P1, so as to obtain a suitable value for the display window. The matched first intermediate profile image P1', the P1' obtained corresponding to the control gray value is a black and white image; or, the gray value and the chromaticity value of each pixel point are controlled according to the data corresponding to each pixel point in the first intermediate profile P1 , so as to obtain a first intermediate cross-sectional image P1 ′ adapted to the display window, and P1 ′ obtained corresponding to the control gray value and chromaticity value is a color image. In this embodiment, the first intermediate section P1 is used as the x0-0-y0 plane of the coordinate system x0y0z0, so that the coordinates of the first reference line L1 on the first intermediate section image P1' in the coordinate system x0y0z0 are relatively simple and simplified The calculation amount of theprocessor 20 is reduced.

步骤22'、处理器20根据操作者的输入在第一中间剖面图像P1’上生成第一参考线L1。即，处理器20根据人机交互装置30的输入，得到第一参考线L1在第一中间剖面图像坐标系x0y0z0中的各点坐标，并且在显示界面上显示该第一参考线L1。如，根据操作者的输入得到第一中间剖面图像坐标系x0y0z0中的输入点集，该输入点集用于表征第一参考线L1，该输入点集包含至少两个已知坐标的点，对该输入点集进行插值，得到第一参考线L1上各个像素点的坐标。第一参考线L1包括直线、曲线和折线中的一种或多种的组合。第一参考线L1通过拖曳光标、样条插值和描记中的一种或多种方式组合形成。即，显示界面在显示第一中间剖面图像P1’的同时，还提供用户的输入操作，例如提供预先设置的直线、曲线或折线等供操作者选择，或者操作者通过人机交互装置30画出第一参考线L1，如通过拖曳光标、样条插值或描记的形式得到。当然，在得到第一参考线L1后，操作者还可通过人机交互装置30对第一参考线L1进行调整操作，如对第一参考线L1进行、平移、旋转和/或同步缩放等；还可以根据操作者的输入确定第一参考线L1的方向，第一参考线L1的方向决定了P2’的顶部和底部方向，例如，第一参考线L1的方向为指向P2’顶部的方向。Step 22', theprocessor 20 generates a first reference line L1 on the first intermediate cross-sectional image P1' according to the operator's input. That is, theprocessor 20 obtains the coordinates of each point of the first reference line L1 in the first intermediate cross-sectional image coordinate system x0y0z0 according to the input of the human-computer interaction device 30, and displays the first reference line L1 on the display interface. For example, an input point set in the coordinate system x0y0z0 of the first intermediate profile image is obtained according to the input of the operator, the input point set is used to represent the first reference line L1, and the input point set includes at least two points with known coordinates. The input point set is interpolated to obtain the coordinates of each pixel on the first reference line L1. The first reference line L1 includes a combination of one or more of straight lines, curved lines and broken lines. The first reference line L1 is formed by one or more combinations of dragging the cursor, spline interpolation and tracing. That is, while displaying the first intermediate cross-sectional image P1 ′, the display interface also provides user input operations, such as providing preset straight lines, curves or polylines for the operator to select, or the operator draws a picture through the human-computer interaction device 30 . The first reference line L1 is obtained by dragging the cursor, spline interpolation or tracing. Of course, after obtaining the first reference line L1, the operator can also perform an adjustment operation on the first reference line L1 through the human-computer interaction device 30, such as performing, translating, rotating, and/or synchronizing scaling, etc. on the first reference line L1; The direction of the first reference line L1 can also be determined according to the operator's input. The direction of the first reference line L1 determines the top and bottom directions of P2'. For example, the direction of the first reference line L1 points to the top of P2'.

步骤23'、处理器20通过第一参考线L1在与第一中间剖面P1垂直的方向剖切三维图像，得到参考剖面P2，即第一中间剖面P1与参考剖面P2垂直相交，且两者的相交线为第一参考线L1。其中，本发明的剖切是指沿视觉深度方向的剖切，如图5中P2和P3所示，由于操作者是在第一中间剖面图像P1’上设置第一参考线L1，故操作者的视觉深度方向为屏幕的前后方向；可以是沿视觉深度方向的向前、向后两个方向剖切三维图像，也可以沿视觉深度方向中的向前或者向后来剖切整个三维图像。图5为了便于说明，展示的是向后剖切三维图像的示意图。Step 23 ′, theprocessor 20 cuts the three-dimensional image through the first reference line L1 in a direction perpendicular to the first intermediate section P1 to obtain a reference section P2, that is, the first intermediate section P1 and the reference section P2 intersect vertically, and the difference between the two is The intersecting line is the first reference line L1. The sectioning in the present invention refers to sectioning along the visual depth direction. As shown in P2 and P3 in FIG. 5 , since the operator sets the first reference line L1 on the first intermediate section image P1 ′, the operator The visual depth direction of the screen is the front and rear direction of the screen; the 3D image can be cut in the forward and backward directions of the visual depth direction, or the entire 3D image can be cut forward or backward in the visual depth direction. FIG. 5 shows a schematic diagram of cutting a three-dimensional image backwards for the convenience of explanation.

处理器20将与显示窗口适配的参考剖面图像P2’输出到显示界面。例如，处理器20根据预设的显示窗口确定参考剖面图像P2’的大小W'(参考剖面图像的宽度)*H'(参考剖面图像的高度)和坐标系x1y1z1，换而言之，参考剖面图像P2’在显示界面上显示时，以参考剖面P2为基准建立新的坐标系x1y1z1，以便于获取目标线在x1y1z1坐标系中的坐标。由于参考剖面图像P2'由各个像素点组成，故参考剖面图像P2'的任一像素点的坐标(x1，y1，0)均为整数，其中，x1∈[0,W'-1]，y1∈[0,H'-1]；处理器20根据参考剖面图像坐标系x1y1z1和三维图像坐标系xyz之间的变换关系得到参考剖面图像中各像素点对应的三维图像坐标系中的坐标。具体的，处理器20根据参考剖面图像坐标系x1y1z1和第一中间剖面图像坐标系x0y0z0之间的变换关系得到参考剖面图像中各像素点对应的第一中间剖面图像坐标系x0y0z0中的坐标，进而根据第一中间剖面图像坐标系x0y0z0和三维图像坐标系xyz之间的变换关系得到参考剖面图像中各像素点对应的三维图像坐标系中的坐标，若对应到的xyz中的坐标无效，如参考剖面图像为矩形，但参考剖面剖切的三维图像为不规则图形，会有部分坐标无效，则将无效坐标的灰度值赋为0(黑色)或255(白色)。处理器20根据参考剖面图像中各像素点对应的三维图像坐标系xyz中的坐标和三维图像对应的三维体数据，得到参考剖面图像中各像素点对应的数据，如根据参考剖面图像中各像素点对应的三维图像坐标系中的坐标以三线性差值法从三维体数据中得到对应的数据；根据参考剖面图像中各像素点对应的数据控制各像素点的灰度值，从而得到与显示窗口适配的参考剖面图像；或者根据参考剖面图像中各像素点对应的数据控制各像素点的灰度值和色度值，从而得到与显示窗口适配的参考剖面图像。由于第一参考线L1可能是曲线，故参考剖面P2也可能是曲面，而参考剖面图像P2’显示时以平面图像的形式显示，故处理器20不仅根据参考剖面图像P2’中各像素点对应的数据控制各像素点的灰度值，还将参考剖面通过拉伸变换等转换成平面后显示参考剖面图像P2’，以与显示窗口适配。Theprocessor 20 outputs the reference profile image P2' adapted to the display window to the display interface. For example, theprocessor 20 determines the size W' of the reference profile image P2' (the width of the reference profile image)*H' (the height of the reference profile image) and the coordinate system x1y1z1 according to the preset display window, in other words, the reference profile When the image P2' is displayed on the display interface, a new coordinate system x1y1z1 is established based on the reference section P2, so as to obtain the coordinates of the target line in the x1y1z1 coordinate system. Since the reference profile image P2' is composed of pixels, the coordinates (x1, y1, 0) of any pixel in the reference profile image P2' are integers, where x1∈[0,W'-1], y1 ∈[0,H'-1]; theprocessor 20 obtains the coordinates in the three-dimensional image coordinate system corresponding to each pixel in the reference cross-section image according to the transformation relationship between the reference cross-section image coordinate system x1y1z1 and the three-dimensional image coordinate system xyz. Specifically, theprocessor 20 obtains the coordinates in the first intermediate cross-sectional image coordinate system x0y0z0 corresponding to each pixel in the reference cross-sectional image according to the transformation relationship between the reference cross-sectional image coordinate system x1y1z1 and the first intermediate cross-sectional image coordinate system x0y0z0, and further According to the transformation relationship between the first intermediate section image coordinate system x0y0z0 and the three-dimensional image coordinate system xyz, the coordinates in the three-dimensional image coordinate system corresponding to each pixel in the reference section image are obtained. If the corresponding coordinates in xyz are invalid, such as reference The section image is a rectangle, but the 3D image cut by the reference section is an irregular figure, and some coordinates are invalid, so assign the gray value of the invalid coordinates to 0 (black) or 255 (white). Theprocessor 20 obtains data corresponding to each pixel point in the reference profile image according to the coordinates in the three-dimensional image coordinate system xyz corresponding to each pixel point in the reference profile image and the three-dimensional volume data corresponding to the three-dimensional image. The coordinates in the three-dimensional image coordinate system corresponding to the point are obtained from the three-dimensional volume data by the trilinear difference method; the gray value of each pixel is controlled according to the data corresponding to each pixel in the reference section image, so as to obtain and display the corresponding data. The reference profile image adapted to the window; or the gray value and chromaticity value of each pixel are controlled according to the data corresponding to each pixel in the reference profile image, so as to obtain a reference profile image adapted to the display window. Since the first reference line L1 may be a curve, the reference profile P2 may also be a curved surface, and the reference profile image P2' is displayed in the form of a plane image, so theprocessor 20 not only matches the pixels in the reference profile image P2' The data of , controls the gray value of each pixel point, and also converts the reference profile into a plane through stretching transformation, etc., and then displays the reference profile image P2' to fit the display window.

可见，操作者在显示界面看到第一中间剖面图像P1’后，根据图像画出第一参考线L1，L1作为剖切轨迹将生成参考剖面图像P2’，并通过显示界面显示出来。操作者的操作在可视化的情况下进行，非常方便。It can be seen that after seeing the first intermediate cross-sectional image P1' on the display interface, the operator draws a first reference line L1 according to the image, and L1 is used as the cutting track to generate a reference cross-sectional image P2', which is displayed on the display interface. The operator's operation is carried out under the condition of visualization, which is very convenient.

步骤3'、处理器20根据操作者的输入在参考剖面图像上生成目标线。即，处理器20根据人机交互装置30的输入，得到目标线在参考剖面图像坐标系x1y1z1中的各点坐标，并且在显示界面上显示该目标线。Step 3', theprocessor 20 generates a target line on the reference section image according to the operator's input. That is, theprocessor 20 obtains the coordinates of each point of the target line in the reference cross-sectional image coordinate system x1y1z1 according to the input of the human-computer interaction device 30, and displays the target line on the display interface.

步骤4'、处理器20通过目标线在与参考剖面垂直的方向剖切三维图像，得到目标剖面，并将与显示窗口适配的目标剖面图像输出到显示界面。例如，处理器20根据预设的显示窗口确定目标剖面图像P3'的大小W”(目标剖面图像的宽度)*H”(目标剖面图像的高度)和坐标系x2y2z2；由于目标剖面图像P3'由各个像素点组成，故目标剖面图像P3'的任一像素点的坐标(x2，y2，0)均为整数，其中，x2∈[0,W”-1]，y2∈[0,H”-1]；根据目标剖面图像坐标系x2y2z2和参考剖面图像坐标系x1y1z1之间的变换关系得到目标剖面图像中各像素点对应的参考剖面图像坐标系x1y1z1中的坐标；根据参考剖面图像坐标系x1y1z1和三维图像坐标系xyz之间的变换关系得到目标剖面图像中各像素点对应的三维图像坐标系xyz中的坐标，具体的，根据参考剖面图像坐标系x1y1z1和第一中间剖面图像坐标系x0y0z0之间的变换关系得到目标剖面图像中各像素点对应的第一中间剖面图像坐标系x0y0z0中的坐标，进而根据第一中间剖面图像坐标系x0y0z0和三维图像坐标系xyz之间的变换关系得到目标剖面图像中各像素点对应的三维图像坐标系xyz中的坐标，若对应到的xyz中的坐标无效，如目标剖面图像为矩形，但目标剖面剖切的三维图像为不规则图形，会有部分坐标无效，则将无效坐标的灰度值赋为0(黑色)或255(白色)；根据目标剖面图像中各像素点对应的三维图像坐标系中的坐标和三维图像对应的三维体数据，得到目标剖面图像中各像素点对应的数据，如根据目标剖面图像中各像素点对应的三维图像坐标系中的坐标以三线性差值法从三维体数据中得到对应的数据；根据目标剖面图像中各像素点对应的数据控制各像素点的灰度值，从而得到与显示窗口适配的目标剖面图像，或者根据目标剖面图像中各像素点对应的数据控制各像素点的灰度值以及色度值，从而得到与显示窗口适配的目标剖面图像。由于目标线L2可能是曲线，故目标剖面P3也可能是曲面，而目标剖面图像P3’显示时以平面图像的形式显示，故处理器20不仅根据目标剖面图像P3’中各像素点对应的数据控制各像素点的灰度值，还将目标剖面通过拉伸变换等转换成平面后显示目标剖面图像P3’，以与显示窗口适配。Step 4', theprocessor 20 cuts the three-dimensional image through the target line in a direction perpendicular to the reference section to obtain the target section, and outputs the target section image adapted to the display window to the display interface. For example, theprocessor 20 determines the size W" (the width of the target cross-section image)*H" (the height of the target cross-section image) and the coordinate system x2y2z2 according to the preset display window; since the target cross-section image P3' consists of Each pixel point is composed of, so the coordinates (x2, y2, 0) of any pixel point of the target profile image P3' are integers, where x2∈[0,W"-1], y2∈[0,H"- 1]; According to the transformation relationship between the target profile image coordinate system x2y2z2 and the reference profile image coordinate system x1y1z1, the coordinates in the reference profile image coordinate system x1y1z1 corresponding to each pixel in the target profile image are obtained; According to the reference profile image coordinate system x1y1z1 and The transformation relationship between the three-dimensional image coordinate systems xyz obtains the coordinates in the three-dimensional image coordinate system xyz corresponding to each pixel in the target profile image. Specifically, according to the reference profile image coordinate system x1y1z1 and the first intermediate profile image coordinate system x0y0z0 obtain the coordinates in the first intermediate section image coordinate system x0y0z0 corresponding to each pixel in the target section image, and then obtain the target section image according to the transformation relationship between the first intermediate section image coordinate system x0y0z0 and the three-dimensional image coordinate system xyz The coordinates in the 3D image coordinate system xyz corresponding to each pixel in , if the corresponding coordinates in xyz are invalid, for example, the target section image is a rectangle, but the 3D image sectioned by the target section is an irregular figure, and some coordinates are invalid. , then assign the gray value of the invalid coordinate to 0 (black) or 255 (white); according to the coordinates in the three-dimensional image coordinate system corresponding to each pixel in the target cross-section image and the three-dimensional volume data corresponding to the three-dimensional image, the target cross-section is obtained. The data corresponding to each pixel in the image, for example, according to the coordinates in the three-dimensional image coordinate system corresponding to each pixel in the target cross-section image, the corresponding data is obtained from the three-dimensional volume data by the trilinear difference method; The data corresponding to the point controls the gray value of each pixel point, so as to obtain a target profile image adapted to the display window, or control the gray value and chromaticity value of each pixel point according to the data corresponding to each pixel point in the target profile image, Thereby, a target profile image adapted to the display window is obtained. Since the target line L2 may be a curve, the target section P3 may also be a curved surface, and the target section image P3' is displayed in the form of a plane image, so theprocessor 20 not only based on the data corresponding to each pixel in the target section image P3' The gray value of each pixel is controlled, and the target section is converted into a plane through stretching transformation, etc., and the target section image P3' is displayed to fit the display window.

可见，本发明通过至少两次剖切，可得到三维图像中各个位置、角度下的剖面图像，非常方便快捷。例如，现有技术中，在临床中基于胎儿颅脑正中矢状面直接得到丘脑冠状面和旁矢状面需要经过复杂的三维平移和旋转变换，且对医生的经验与水平要求很高。而利用本发明提供的医疗成像设备以及剖面成像方法，操作者只需先基于正中矢状面图像(第一中间剖面图像)画线得到一个正交剖面(参考剖面)，得到丘脑冠状面图像(参考剖面图像)，然后在丘脑冠状面图像上再画线得到一个正交剖面(目标剖面)便可快速得到旁矢状面(目标剖面图像)。因此，利用本发明提供的设备和方法可辅助医生快速简捷地获得目标切面图像。It can be seen that the present invention can obtain cross-sectional images at various positions and angles in the three-dimensional image through at least two cuts, which is very convenient and quick. For example, in the prior art, directly obtaining the coronal plane and parasagittal plane of the thalamus based on the mid-sagittal plane of the fetal brain requires complex three-dimensional translation and rotation transformation, and requires high experience and level of the doctor. With the medical imaging device and the cross-sectional imaging method provided by the present invention, the operator only needs to draw a line based on the midsagittal image (the first middle cross-sectional image) to obtain an orthogonal cross-section (reference cross-section), and obtain a coronal image of the thalamus ( The reference profile image), and then draw a line on the coronal image of the thalamus to obtain an orthogonal profile (target profile) to quickly obtain the parasagittal plane (target profile image). Therefore, the device and method provided by the present invention can assist the doctor to obtain the target slice image quickly and simply.

图4所示的实施例中，参考剖面由第一参考线在与第一中间剖面垂直的方向剖切三维图像得到，当然，还可以根据操作者的需要进行更多次数的剖切，即在有的实施例中，步骤2包括：In the embodiment shown in FIG. 4 , the reference section is obtained by cutting the three-dimensional image with the first reference line in a direction perpendicular to the first intermediate section. In some embodiments,step 2 includes:

通过用三维空间中的任一平面对三维图像进行剖切得到平面的第一中间剖面，并将与显示窗口适配的第一中间剖面图像输出到显示界面；A first intermediate section of the plane is obtained by slicing the three-dimensional image with any plane in the three-dimensional space, and the first intermediate section image adapted to the display window is output to the display interface;

根据操作者的输入在第一中间剖面图像上生成第一参考线；通过第一参考线在与第一中间剖面垂直的方向剖切三维图像，得到第二中间剖面，即第一中间剖面与第二中间剖面垂直相交，且两者的相交线为第一参考线，将与显示窗口适配的第二中间剖面图像输出到显示界面；A first reference line is generated on the first intermediate section image according to the operator's input; the three-dimensional image is cut in a direction perpendicular to the first intermediate section through the first reference line, and a second intermediate section is obtained, that is, the first intermediate section and the second intermediate section are obtained. The two intermediate sections intersect vertically, and the intersection line of the two is the first reference line, and the second intermediate section image adapted to the display window is output to the display interface;

根据操作者的输入在第二中间剖面图像上生成第二参考线；通过第二参考线在与第二中间剖面垂直的方向剖切三维图像，得到第三中间剖面，即第二中间剖面与第三中间剖面垂直相交，且两者的相交线为第二参考线，将与显示窗口适配的第三中间剖面图像输出到显示界面；A second reference line is generated on the second intermediate section image according to the operator's input; the three-dimensional image is cut in a direction perpendicular to the second intermediate section through the second reference line to obtain a third intermediate section, that is, the second intermediate section and the third intermediate section are obtained. The three intermediate sections intersect vertically, and the intersection line of the two is the second reference line, and the third intermediate section image adapted to the display window is output to the display interface;

……；...;

根据操作者的输入在第N中间剖面图像上生成第N参考线；通过第N参考线在与第N中间剖面垂直的方向剖切三维图像，得到参考剖面，即第N中间剖面与参考剖面垂直相交，且两者的相交线为第N参考线，将与显示窗口适配的参考剖面图像输出到显示界面。其中，N为大于或者等于2的整数。Generate the Nth reference line on the Nth intermediate section image according to the operator's input; cut the three-dimensional image through the Nth reference line in the direction perpendicular to the Nth intermediate section to obtain the reference section, that is, the Nth intermediate section is perpendicular to the reference section intersect, and the intersecting line of the two is the Nth reference line, and the reference section image adapted to the display window is output to the display interface. Wherein, N is an integer greater than or equal to 2.

由于每次剖切都是与上一次剖切的剖面垂直，且相交线可以是水平线、竖直线、斜线、曲线等，操作者可利用不同剖面的空间位置关系，通过画线进行操作，操作灵活多变且方便，对于角度刁钻的剖面图像也能轻松操作，而且可通过多次剖切得到三维图像不同角度的多个剖面图像，提高了操作者的工作效率。Since each section is perpendicular to the section of the previous section, and the intersecting lines can be horizontal lines, vertical lines, oblique lines, curves, etc., the operator can use the spatial position relationship of different sections to operate by drawing lines. The operation is flexible and convenient, and it can also be easily operated for cross-sectional images with tricky angles, and multiple cross-sectional images of different angles of the three-dimensional image can be obtained through multiple cuts, which improves the work efficiency of the operator.

一实施例中，处理器20还用于通过人机交互装置30接收用于对三维图像、第一中间剖面、……、第N中间剖面、参考剖面、或者目标剖面进行平移、旋转和/或显示窗口缩放的指令，根据该指令更新各个剖面图像并输出到显示界面，便于操作者后期调整。处理器20还用于通过人机交互装置30接收用于对第一参考线、……、第N参考线、或目标线进行平移、旋转和/或显示窗口缩放的指令，根据该指令更新各个剖面图像并输出到显示界面。In one embodiment, theprocessor 20 is further configured to receive, through the human-computer interaction device 30, a method for translating, rotating and/or performing translation, rotation and/or operation on the three-dimensional image, the first intermediate section, . . . , the Nth intermediate section, the reference section, or the target section. Display the command of window scaling, update each section image according to the command and output it to the display interface, which is convenient for the operator to adjust later. Theprocessor 20 is further configured to receive, through the human-computer interaction device 30, an instruction for performing translation, rotation and/or display window scaling on the first reference line, . . . , the Nth reference line, or the target line, and update each Profile image and output to display interface.

前述各实施例中，第一参考线、第二参考线和目标线是根据操作者的输入生成的。但是，本发明不限于此。在其他的实施例中，该输入也可以是由与医疗成像设备通过有线或无线网络连接的远程设备输入的，也可以是医疗成像设备自动做相应的处理、分析或检测后输入的，或者通过其他方式由其他人员和/或设备输入的。In the foregoing embodiments, the first reference line, the second reference line and the target line are generated according to the operator's input. However, the present invention is not limited to this. In other embodiments, the input may also be input by a remote device connected to the medical imaging device through a wired or wireless network, or may be input by the medical imaging device automatically after corresponding processing, analysis or detection, or by the medical imaging device. Otherwise entered by other persons and/or equipment.

本文参照了各种示范实施例进行说明。然而，本领域的技术人员将认识到，在不脱离本文范围的情况下，可以对示范性实施例做出改变和修正。例如，各种操作步骤以及用于执行操作步骤的组件，可以根据特定的应用或考虑与系统的操作相关联的任何数量的成本函数以不同的方式实现(例如一个或多个步骤可以被删除、修改或结合到其他步骤中)。Descriptions are made herein with reference to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications may be made to the exemplary embodiments without departing from the scope of this document. For example, various operational steps, and components for performing operational steps, may be implemented in different ways depending on the particular application or considering any number of cost functions associated with the operation of the system (eg, one or more steps may be deleted, modified or incorporated into other steps).

另外，如本领域技术人员所理解的，本文的原理可以反映在计算机可读存储介质上的计算机程序产品中，该可读存储介质预装有计算机可读程序代码。任何有形的、非暂时性的计算机可读存储介质皆可被使用，包括磁存储设备(硬盘、软盘等)、光学存储设备(CD-ROM、DVD、Blu Ray盘等)、闪存和/或诸如此类。这些计算机程序指令可被加载到通用计算机、专用计算机或其他可编程数据处理设备上以形成机器，使得这些在计算机上或其他可编程数据处理装置上执行的指令可以生成实现指定的功能的装置。这些计算机程序指令也可以存储在计算机可读存储器中，该计算机可读存储器可以指示计算机或其他可编程数据处理设备以特定的方式运行，这样存储在计算机可读存储器中的指令就可以形成一件制造品，包括实现指定功能的实现装置。计算机程序指令也可以加载到计算机或其他可编程数据处理设备上，从而在计算机或其他可编程设备上执行一系列操作步骤以产生一个计算机实现的进程，使得在计算机或其他可编程设备上执行的指令可以提供用于实现指定功能的步骤。Additionally, as understood by those skilled in the art, the principles herein may be reflected in a computer program product on a computer-readable storage medium preloaded with computer-readable program code. Any tangible, non-transitory computer-readable storage medium may be used, including magnetic storage devices (hard disks, floppy disks, etc.), optical storage devices (CD-ROMs, DVDs, Blu Ray disks, etc.), flash memory, and/or the like . These computer program instructions may be loaded on a general purpose computer, special purpose computer or other programmable data processing apparatus to form a machine such that execution of the instructions on the computer or other programmable data processing apparatus may generate means for implementing the specified functions. These computer program instructions may also be stored in a computer-readable memory that instructs a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer-readable memory form a piece of Articles of manufacture, including implementing means for implementing specified functions. Computer program instructions may also be loaded on a computer or other programmable data processing device to perform a series of operational steps on the computer or other programmable device to produce a computer-implemented process such that a process executed on the computer or other programmable device Instructions may provide steps for implementing specified functions.

虽然在各种实施例中已经示出了本文的原理，但是许多特别适用于特定环境和操作要求的结构、布置、比例、元件、材料和部件的修改可以在不脱离本披露的原则和范围内使用。以上修改和其他改变或修正将被包含在本文的范围之内。Although the principles herein have been shown in various embodiments, many modifications may be made in structure, arrangement, proportions, elements, materials and components as are particularly suited to particular environmental and operating requirements without departing from the principles and scope of the present disclosure use. The above modifications and other changes or corrections are intended to be included within the scope of this document.

前述具体说明已参照各种实施例进行了描述。然而，本领域技术人员将认识到，可以在不脱离本披露的范围的情况下进行各种修正和改变。因此，对于本披露的考虑将是说明性的而非限制性的意义上的，并且所有这些修改都将被包含在其范围内。同样，有关于各种实施例的优点、其他优点和问题的解决方案已如上所述。然而，益处、优点、问题的解决方案以及任何能产生这些的要素，或使其变得更明确的解决方案都不应被解释为关键的、必需的或必要的。本文中所用的术语“包括”和其任何其他变体，皆属于非排他性包含，这样包括要素列表的过程、方法、文章或设备不仅包括这些要素，还包括未明确列出的或不属于该过程、方法、系统、文章或设备的其他要素。此外，本文中所使用的术语“耦合”和其任何其他变体都是指物理连接、电连接、磁连接、光连接、通信连接、功能连接和/或任何其他连接。The foregoing Detailed Description has been described with reference to various embodiments. However, those skilled in the art will recognize that various modifications and changes can be made without departing from the scope of the present disclosure. Accordingly, this disclosure is to be considered in an illustrative rather than a restrictive sense, and all such modifications are intended to be included within its scope. Likewise, the advantages, other advantages, and solutions to problems of the various embodiments have been described above. However, the benefits, advantages, solutions to the problems, and any elements that give rise to them, or make them more explicit, should not be construed as critical, necessary, or essential. As used herein, the term "comprising" and any other variations thereof are non-exclusive inclusion, such that a process, method, article or device including a list of elements includes not only those elements, but also not expressly listed or included in the process , method, system, article or other elements of the device. Furthermore, as used herein, the term "coupled" and any other variations thereof refer to physical connections, electrical connections, magnetic connections, optical connections, communication connections, functional connections, and/or any other connection.

具有本领域技术的人将认识到，在不脱离本发明的基本原理的情况下，可以对上述实施例的细节进行许多改变。因此，本发明的范围应根据以下权利要求确定。Those skilled in the art will recognize that many changes may be made to the details of the above-described embodiments without departing from the underlying principles of the invention. Accordingly, the scope of the invention should be determined in accordance with the following claims.