Magnetic resonance system and scanning method thereofTechnical Field
The embodiment of the invention relates to a medical imaging technology, in particular to a scanning method of a magnetic resonance system and the magnetic resonance system.
Background
Magnetic resonance scanning techniques can image a lesion of a patient to assist a target user in diagnosis. Before the formal scanning of the magnetic resonance equipment, the scanning part of the patient needs to be positioned and the positioning image needs to be scanned.
The prior art magnetic resonance scanning method is as follows: a patient lies on a scanning bed, and a target user configures a coil corresponding to a part to be scanned on the patient; the target user operates the movable scanning bed to enable the scanning part to be positioned under the positioned light beam; a target user enters the bed by pressing one key, and the scanning bed sends a scanning part to the center of the magnet; the target user leaves the scanning room, selects the positioning image protocol, and the system starts to calibrate and scan the positioning image according to the starting scanning; after the system finishes scout image scanning, the target user sets the scanning of the cross section, the coronal plane and the sagittal plane according to the obtained scout image, so that the system can obtain the image in the correct anatomical direction. In the prior art, a good interactive interface is not provided for a target user, the automation degree is low, the target user needs to have nuclear medicine experience and magnetic resonance radiography experience in multi-mode magnetic resonance scanning, the requirement on the professional skill of the target user is high, and meanwhile, the bed-entering distance of a scanning bed cannot be accurately obtained and adjusted. When a target user scans a plurality of parts, the next scanning part cannot be automatically sent to the center of the magnet, a large amount of time is consumed for the target user to carry out magnetic resonance scanning, the operation process is complex and tedious, and the scanning efficiency is low.
Disclosure of Invention
The embodiment of the invention provides a scanning method of a magnetic resonance system and the magnetic resonance system, which can automatically complete the scanning work of patient positioning and positioning images in the magnetic resonance scanning process and improve the clinical work efficiency of a target user.
In a first aspect, an embodiment of the present invention provides a scanning method of a magnetic resonance system, the magnetic resonance system including a magnet and a scanning bed, the magnet forming a detection region, the scanning bed being configured to carry a target object, the method including:
acquiring basic characteristic information of a target object, first position information of the target object on the scanning bed and at least one preset scanning position, wherein the basic characteristic information comprises at least one of age, sex, height and weight;
driving the scanning bed according to the first position information and basic characteristic information of a target object so as to move the preset scanning position to the detection area;
and exciting the preset scanning part by utilizing an imaging sequence so as to acquire a magnetic resonance image of the preset scanning part.
In a second aspect, an embodiment of the present invention further provides a magnetic resonance system, including a scanning bed and a scanning apparatus, the scanning apparatus including a magnet, wherein the magnet forms a detection region, the scanning bed is configured to carry a target object, and the scanning apparatus includes:
the information acquisition module is used for acquiring basic characteristic information of a target object, first position information of the target object on the scanning bed and at least one preset scanning part, wherein the basic characteristic information comprises at least one of age, sex, height and weight;
the driving module is used for driving the scanning bed according to the first position information and the characteristic information of the target object so as to move the preset scanning position to the detection area;
and the scanning module is used for exciting the preset scanning part by utilizing an imaging sequence so as to acquire a magnetic resonance image of the preset scanning part.
According to the technical scheme of the embodiment of the invention, the bed entering distance can be automatically calculated according to the characteristic information of the target object and the position of the target object on the scanning bed by acquiring the basic characteristic information of the target object, the first position information of the target object on the scanning bed and at least one preset scanning position, wherein the basic characteristic information comprises at least one of age, sex, height and weight, the position to be scanned is automatically moved to the detection area, and the time of moving the position to be scanned to the detection area by a target user is reduced. And then, the scanning bed is driven according to the first position information, the basic characteristic information of the target object and the part to be scanned so as to move the preset scanning part to the detection area, so that the requirement on the working skill of the target user is reduced, and the clinical work efficiency of the target user is improved. And further, exciting the preset scanning part by using an imaging sequence to acquire a magnetic resonance image of the preset scanning part and guide the completion of a magnetic resonance scanning task. According to the technical scheme, the problems that the target user needs to manually move the part to be scanned to the detection area according to different target objects, the part to be scanned and the position of the target object on the scanning bed in the magnetic resonance scanning task, the workload is complicated, and the target user needs to have higher professional skills are solved, the part to be scanned is automatically moved to the detection area according to the different target objects, the part to be scanned and the position of the target object on the scanning bed in the magnetic resonance scanning task, the workload of the target user is reduced, the scanning of a plurality of parts is automatically completed, and the clinical work efficiency is improved.
Drawings
Fig. 1a is a flowchart of a scanning method of a magnetic resonance system according to an embodiment of the present invention;
FIG. 1b is a schematic structural diagram of a human body model block diagram according to an embodiment of the present invention;
fig. 2 is a flowchart of a scanning method of a magnetic resonance system according to a second embodiment of the present invention;
fig. 3 is a flowchart of a scanning method of a magnetic resonance system according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a scanning apparatus of a magnetic resonance system according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus according to a fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1a is a flowchart of a scanning method of a magnetic resonance system according to an embodiment of the present invention, where the magnetic resonance system includes a magnet and a scanning bed, the magnet forms a detection region, and the scanning bed is used for carrying a target object. The embodiment can be suitable for the scanning of medical equipment, in particular for the scanning of a magnetic resonance system. The method may be performed by a magnetic resonance system, the apparatus may be implemented by hardware and/or software, and the apparatus may be integrated into a device (e.g. a magnetic resonance scanning device) to perform, as shown in fig. 1a, specifically including the following steps:
step 101, obtaining basic characteristic information of a target object, first position information of the target object on the scanning bed and at least one preset scanning position.
Wherein the basic characteristic information includes at least one of age, sex, height, and weight.
The target object generally refers to an object to be scanned by a magnetic resonance scanning system to acquire data. For example, the patient may be a hospital visit, or a laboratory assisted laboratory person.
The position of the target object on the scanning bed can be obtained by determining a pressure distribution map of the target object through a plurality of pressure sensors arranged on the scanning bed, determining the contour of the target object according to the pressure distribution map of the target object, and acquiring the contour of the target object through a shooting device arranged on the magnet.
And according to the basic characteristic information of the target object, the contour of the target object is determined.
The preset scanning part refers to a part to be scanned, and may be one scanning part or a plurality of scanning parts, and the specific number of the scanning parts and the specific part to be scanned may be set by the target user according to actual requirements. Further, the preset scanning position is also correspondingly provided with a Radio Frequency (RF) receiving coil. The preset scanning part may be one or more of a head, an abdomen, a chest, a breast, a neck, a shoulder, a pelvic cavity, an ankle, a leg, four limbs, and the like. Correspondingly, the radio frequency receive coil may be a head coil, spine coil, limb coil, ankle coil, breast coil, or the like. Different radio frequency receiving coils usually have different shapes, and the preset scanning position can be determined through the shot RF coil.
Optionally, the acquiring basic feature information of the target object and at least one preset scanning part includes:
receiving basic characteristic information of a target object input by a user and at least one preset scanning part, wherein the basic characteristic information is sent by a man-machine interaction device; or,
receiving voice information input by a target user, and determining basic characteristic information and at least one preset scanning part of a target object according to the voice information.
For example, the human-computer interaction device may be an input device such as a touch screen located on the magnetic resonance system, a handheld touch screen tablet computer, a mobile phone, and a remote controller, and may receive input (in the form of an input box or handwriting) basic feature information of the target object, such as information of the age, sex, height, and weight of the target object, and may receive input scanning location information, where the input scanning location information may be one or more scanning locations, such as an elbow, and when the scanning elbow is determined, the input information may be input into the elbow, the elbow joint, and the like without completely matching the vocabulary of the elbow, and the input information may be used to obtain the same scanning location information finally by using a simple correspondence relationship or a semantic recognition method. The scanning part can be directly input, the disease can also be input, and when the disease is input, the scanning part information corresponding to the disease can be obtained, so that the scanning can be carried out. The human body model block diagram can also be displayed on input equipment such as a touch screen on the magnetic resonance system, a handheld touch screen tablet personal computer and the like, and the human body model block diagram can comprise a front outline and a back outline of a human body. As shown in fig. 1b, the left side of fig. 1b is a front profile, the left side of fig. 1b is a back profile, and all the scanning site information that can be selected is displayed on the front and back profiles. As shown in fig. 1b, when certain regions are selected, such as the elbow and head, the corresponding icons may be illuminated, with other unselected regions remaining in a default un-illuminated state.
The man-machine interaction device can also be a voice interaction device, and basic characteristic information and scanning part information of the target object are obtained by means of input voice. For example, to scan an elbow, the same results would be obtained with speech input as elbow, elbow joint, etc. The target user can also input information such as age, sex, height, weight and the like of the target object through voice.
And 102, driving the scanning bed according to the first position information and the basic characteristic information of the target object so as to move the preset scanning position to the detection area.
Wherein the first position information indicates a position of the target object on the scanning bed.
And driving the scanning bed according to the first position information and basic characteristic information of the target object, wherein the target object can move to the detection area along with the scanning bed so as to move the preset scanning position to the detection area.
And 103, exciting the preset scanning part by using an imaging sequence to acquire a magnetic resonance image of the preset scanning part.
For example, the procedure of performing a magnetic resonance scan on a target object is as follows: the target is positioned on a scanning bed within the magnetic resonance cavity and the corresponding coil is applied to the target body. The target user can input the characteristic information of the target object such as age, sex, height and weight through interaction equipment such as a tablet personal computer or voice interaction equipment and register the part to be scanned, for example, when the chest is scanned, the magnetic resonance system automatically judges the required bed entering distance according to the position of the target object on a scanning bed and the characteristic information of the target object through an ergonomic statistical value, and the chest of the target object is moved to a magnet detection area. After moving to the detection area, the system automatically starts to perform scanning pre-calibration operation. After the pre-calibration is completed, the system automatically starts to scan the positioning image of the target object. The system frames an image in the correct anatomical direction according to the scanned positioning image through an image recognition algorithm and starts scanning.
According to the technical scheme of the embodiment of the invention, the bed entering distance can be automatically calculated according to the characteristic information of the target object and the position of the target object on the scanning bed by acquiring the basic characteristic information of the target object, the first position information of the target object on the scanning bed and at least one preset scanning position, wherein the basic characteristic information comprises at least one of age, sex, height and weight, the position to be scanned is automatically moved to the detection area, and the time of moving the position to be scanned to the detection area by a target user is reduced. And then, the scanning bed is driven according to the first position information, the basic characteristic information of the target object and the part to be scanned so as to move the preset scanning part to the detection area, so that the requirement on the working skill of the target user is reduced, and the clinical work efficiency of the target user is improved. And further, exciting the preset scanning part by using an imaging sequence to acquire a magnetic resonance image of the preset scanning part and guide the completion of a magnetic resonance scanning task. According to the technical scheme, the problems that the target user needs to manually move the part to be scanned to the detection area according to different target objects, the part to be scanned and the position of the target object on the scanning bed in the magnetic resonance scanning task, the workload is complicated, and the target user needs to have higher professional skills are solved, the part to be scanned is automatically moved to the detection area according to the different target objects, the part to be scanned and the position of the target object on the scanning bed in the magnetic resonance scanning task, the workload of the target user is reduced, the scanning of a plurality of parts is automatically completed, and the clinical work efficiency is improved.
Example two
Fig. 2 is a flowchart of a scanning method of a magnetic resonance system according to a second embodiment of the present invention. On the basis of the foregoing embodiment, in this embodiment, optionally, the driving the scanning bed according to the first position information and the basic feature information of the target object to move the preset scanning portion to the detection area includes:
determining second position information of the preset scanning part in the target object according to basic feature information of the target object; determining third position information of a preset scanning part on the scanning bed according to the first position information and the second position information; and driving the scanning bed according to the third position information so as to move the preset scanning position to the detection area.
On this basis, further, before the exciting the preset scanning position by using the imaging sequence to acquire the magnetic resonance image of the preset scanning position, the method further includes:
performing a scan pre-calibration of the magnetic resonance system, wherein the scan pre-calibration comprises at least one of a calibration for transmit coil amplitude and phase, a calibration for B0 field, and a calibration for B1 field.
On this basis, further, the exciting the preset scanning position by using an imaging sequence to acquire a magnetic resonance image of the preset scanning position includes:
scanning the detection area based on the positioning sequence pulse to obtain a positioning image, wherein the positioning image comprises at least one of a cross section positioning image, a coronal plane positioning image and a sagittal plane positioning image;
identifying the positioning image based on a preset image identification algorithm to obtain each actual scanning part in the positioning image;
pre-positioning the positioning image according to the preset scanning part and each actual scanning part to generate pre-positioning information;
and performing magnetic resonance scanning on the target object based on the predetermined position information to acquire a magnetic resonance image of the preset scanning part.
On this basis, further, the determining, according to the basic feature information of the target object, second position information of the preset scanning portion in the target object includes:
determining a pressure distribution map of a target object through a plurality of pressure sensors arranged on the scanning bed;
determining the contour of the target object according to the pressure distribution map of the target object;
and determining second position information of the preset scanning part in the target object according to the contour of the target object and the basic characteristic information of the target object.
On this basis, further, the determining, according to the basic feature information of the target object, second position information of the preset scanning portion in the target object includes:
acquiring the outline of the target object through a shooting device arranged on the magnet;
and determining a preset scanning part in the contour of the target object according to the basic characteristic information of the target object, and determining the second position information.
On this basis, further, the photographing apparatus includes: a camera or an infrared imaging device.
On this basis, further, the performing a magnetic resonance scan on the target object based on the predetermined bit information includes:
and selecting a target scanning sequence according to the pre-positioning information, and carrying out magnetic resonance scanning on the target object based on the target scanning sequence.
As shown in fig. 2, the method of this embodiment specifically includes the following steps:
step 201, obtaining basic characteristic information of the target object, first position information of the target object on the scanning bed and at least one preset scanning position.
Wherein the basic characteristic information includes at least one of age, sex, height, and weight.
Step 202, determining second position information of the preset scanning part in the target object according to basic feature information of the target object.
Optionally, the determining, according to the basic feature information of the target object, second position information of the preset scanning portion in the target object includes:
determining a pressure distribution map of a target object through a plurality of pressure sensors arranged on the scanning bed;
determining the contour of the target object according to the pressure distribution map of the target object;
and determining second position information of the preset scanning part in the target object according to the contour of the target object and the basic characteristic information of the target object.
The general outline of the target object can be drawn according to the pressure distribution diagram, and the position of the scanning part on the target object can be obtained according to the general outline of the target object and the basic characteristic information of the target object and the ergonomic statistic value.
For example, when it is determined to scan a scanning portion, and information of the target object such as age, sex, height, weight, etc. is known, the position of the scanning portion with respect to the whole human body can be obtained as an ergonomic statistical value. For example, when it is determined to scan the chest, the ergonomic statistic may be 0.3, at which time if the target object is known to be 1.7 meters in height, the position of the chest on the body can be determined by 1.7 x 0.3.
Optionally, the determining, according to the basic feature information of the target object, second position information of the preset scanning portion in the target object includes:
acquiring the outline of the target object through a shooting device arranged on the magnet;
and determining a preset scanning part in the contour of the target object according to the basic characteristic information of the target object, and determining the second position information.
Optionally, the photographing apparatus includes: a camera or an infrared imaging device.
The magnetic resonance system can also acquire an image of a target object through a shooting device arranged on the magnet, and determine the position of a scanning part on the target object. Since the target object body covers the coil, the acquired image may be a coil image from which a human body contour is obtained. The magnetic resonance system calculates the position of the part to be scanned of the target object relative to the whole body of the target object according to the acquired contour of the target object and the basic characteristic information of the target object and the ergonomic statistic value.
And 203, determining third position information of a preset scanning part on the scanning bed according to the first position information and the second position information.
The position of the preset scanning part on the scanning bed can be obtained through the position of the target object on the scanning bed and the position of the preset scanning part on the target object, so that the moving distance of the scanning bed is determined, and the part to be scanned is moved to the detection area.
And 204, driving the scanning bed according to the third position information so as to move the preset scanning position to the detection area.
For example, when scanning the chest, the bed is moved according to the calculated moving distance of the bed, and the chest position is moved to the detection area, i.e. the magnetic resonance scanning imaging area, for magnetic resonance scanning imaging.
Step 205, scanning and pre-calibrating the magnetic resonance system.
Wherein the scan pre-calibration comprises at least one of a calibration for transmit coil amplitude and phase, a calibration for B0 field, and a calibration for B1 field. It will be appreciated that the purpose of scan pre-calibration is to adjust scan parameters so that the magnetic resonance scan can adjust the relevant scan parameters according to the scan location to better accommodate the scan of the scan location.
Step 206, exciting the preset scanning part by using an imaging sequence to acquire a magnetic resonance image of the preset scanning part.
Optionally, the exciting the preset scanning position by using an imaging sequence to acquire a magnetic resonance image of the preset scanning position includes:
scanning the detection area based on the positioning sequence pulse to obtain a positioning image, wherein the positioning image comprises at least one of a cross section positioning image, a coronal plane positioning image and a sagittal plane positioning image;
it will be appreciated that when the magnetic resonance apparatus scans an organ such as the lung, a scout image (possibly a scout image of the chest and abdomen of the human body) is usually acquired first, the scout image is a low resolution image containing the scanned part of the human body, and then the embodiment further automatically identifies the high resolution image of the lung by an image identification algorithm.
Identifying the positioning image based on a preset image identification algorithm to obtain each actual scanning part in the positioning image;
the preset image recognition algorithm may be a recognition algorithm commonly used in pattern recognition, such as Adaboost algorithm, neural network algorithm, and the like. Before a region is identified using an image recognition algorithm, a training set of magnetic resonance images for identifying each scanned region is constructed and trained. When a certain portion is identified using an image recognition algorithm, the scanned portion may be framed using a preset color, a preset shape, or the like.
Pre-positioning the positioning image according to the preset scanning part and each actual scanning part to generate pre-positioning information;
wherein the image can be pre-positioned according to the anatomical direction, and then a conventional scanning sequence is given according to the required scanning position and the scanning is started. The predetermined bit of information comprises information such as a magnetic resonance scan sequence.
And performing magnetic resonance scanning on the target object based on the predetermined position information to acquire a magnetic resonance image of the preset scanning part.
Optionally, the performing a magnetic resonance scan on the target object based on the predetermined bit information includes:
and selecting a target scanning sequence according to the pre-positioning information, and carrying out magnetic resonance scanning on the target object based on the target scanning sequence to obtain a magnetic resonance image of the preset scanning part.
The process of selecting the target scanning sequence can be that after a target user sees the pre-positioning information on a computer screen of the magnetic resonance equipment, the required scanning sequence is selected for the next scanning; or the magnetic resonance scanning can be performed according to the required scanning position and the conventional scanning sequence is given for the next scanning.
The technical scheme of the embodiment determines second position information of the preset scanning part in the target object according to basic characteristic information of the target object; determining third position information of a preset scanning part on the scanning bed according to the first position information and the second position information; and driving the scanning bed according to the third position information to move the preset scanning part to the detection area, automatically calculating the moving distance of the scanning bed, moving the part to be scanned to the detection area, reducing the workload of a target user and accurately controlling the moving distance of the scanning bed. Further, determining a pressure distribution map of the target object through a plurality of pressure sensors arranged on the scanning bed; determining the contour of the target object according to the pressure distribution map of the target object; and according to the contour of the target object and the basic characteristic information of the target object, determining second position information of the preset scanning part in the target object, and automatically acquiring and further presetting the position of the scanning part in the target object. Further, the outline of the target object is collected through a shooting device arranged on the magnet; and determining a preset scanning part in the contour of the target object according to the basic characteristic information of the target object, determining the second position information, and automatically acquiring the position of the preset scanning part in the target object. Furthermore, before the preset scanning part is excited by the imaging sequence to acquire the magnetic resonance image of the preset scanning part, the magnetic resonance system is scanned and pre-calibrated, and scanning parameters can be automatically adjusted to adapt to subsequent scanning. Then, scanning the detection area based on the positioning sequence pulse to obtain a positioning image, wherein the positioning image comprises at least one of a cross section positioning image, a coronal plane positioning image and a sagittal plane positioning image; identifying the positioning image based on a preset image identification algorithm to obtain each actual scanning part in the positioning image; pre-positioning the positioning image according to the preset scanning part and each actual scanning part to generate pre-positioning information; and performing magnetic resonance scanning on the target object based on the pre-positioning information to acquire a magnetic resonance image of the preset scanning part, so that a target user does not need to manually position the scanning part, the moving distance of a scanning bed is adjusted, the workload of the target user is reduced, and the magnetic resonance scanning is more convenient and automatic. And then, selecting a target scanning sequence according to the pre-positioning information, and carrying out magnetic resonance scanning on the target object based on the target scanning sequence to finish the magnetic resonance scanning.
EXAMPLE III
Fig. 3 is a flowchart of a scanning method of a magnetic resonance system according to a third embodiment of the present invention. Based on the foregoing embodiment, in this embodiment, it may be selected that when the basic feature information of the target object, the first position information, and the at least two preset scanning positions are acquired and it is detected that the magnetic resonance scanning of the current target scanning position is completed, a next target scanning position is acquired, and the magnetic resonance scanning is performed on the target object based on the next target scanning position. As shown in fig. 3, the method of this embodiment specifically includes the following steps:
step 301, obtaining basic characteristic information of the target object, first position information of the target object on the scanning bed and at least one preset scanning position.
Wherein the basic characteristic information includes at least one of age, sex, height, and weight.
Step 302, determining second position information of the preset scanning part in the target object according to the basic feature information of the target object.
And step 303, determining third position information of a preset scanning part on the scanning bed according to the first position information and the second position information.
And 304, driving the scanning bed according to the third position information to move the preset scanning position to the detection area.
Step 305, scanning and pre-calibrating the magnetic resonance system.
Step 306, exciting the preset scanning part by using an imaging sequence to acquire a magnetic resonance image of the preset scanning part.
And 307, judging whether the magnetic resonance scanning of the current target scanning position is finished. If yes, go to step 308, otherwise, go to step 306.
The target scanning position refers to a position corresponding to a preset scanning part. Since the preset scan locations may be one or more, when there are multiple preset scan locations, the magnetic resonance system may store the multiple preset scan locations, for example, in a list.
Step 307 is to determine whether the magnetic resonance scan of the current scan region is completed.
And 308, judging whether the current scanning position is the last target scanning position. If not, go to step 309, and if so, go to step 310.
When the preset scanning part information includes two or more preset scanning parts, a next target scanning position may be automatically or manually acquired, and the target object is subjected to magnetic resonance scanning based on the next target scanning position.
Step 309, acquiring the next target scanning position and updating the next target scanning position to be the current target scanning position, and returning to execute step 304.
Wherein the next target scanning position may be the next scanning position to the current target scanning position in the list described in step 307.
It is understood that, through steps 301, 302 and 303, the third position information of all the preset scanning positions can be determined and stored, and when a plurality of preset scanning positions are included, the third position information of the preset scanning positions does not need to be determined, and the scanning table can be moved directly according to the stored third position information of the preset scanning positions.
Step 310, the magnetic resonance scan is ended.
For example, the scanning process of the present embodiment is as follows: the target is positioned on a scanning bed within the magnetic resonance cavity and the corresponding coil is applied to the target body. The target user inputs characteristic information of the target object such as age, sex, height, weight and the like through a tablet personal computer or voice interaction equipment, for example, when the chest is scanned, the magnetic resonance system automatically judges the required bed entering distance according to the position of the target object on a scanning bed and the characteristic information of the target object through an ergonomic statistical value, and the chest of the target object is moved to the center of the magnet. After moving to the center of the magnet, the system automatically starts to perform scanning pre-calibration operation. After the pre-calibration is completed, the system automatically starts to scan the positioning image of the target object. After the positioning image is scanned, the target user can select three scanning modes through a touch screen on the magnetic resonance system, a handheld touch screen tablet computer or voice interaction equipment, wherein the three scanning modes are respectively as follows: a manual scan mode, an auxiliary scan mode, and an automatic scan mode. The manual scanning mode is that the system scans a positioning image, and a target user operates and positions to a scanning part on the positioning image to acquire a magnetic resonance image. The auxiliary scanning mode is as follows: the system scans a positioning image, then identifies a scanning part of at least one of a cross section, a coronal plane and a sagittal plane in the image by combining the scanning part required before according to the image on the positioning image, carries out pre-positioning operation on the image according to the anatomical direction, and selects a required magnetic resonance scanning sequence for next scanning after a target user sees the pre-positioning information on a magnetic resonance equipment screen. The automatic scanning mode supports scanning of two or more scanning parts of the target object, and after scanning of one scanning part is completed, the system performs automatic geomagnetic resonance scanning according to related operation of performing magnetic resonance scanning on a previously selected non-scanning part.
In the present embodiment, the steps are numbered only for the sake of clarity in explanation of the technical features, and the execution order is not strictly limited. Illustratively, step 309 may be executed and then step 303 may be executed.
According to the technical scheme of the embodiment, when the basic characteristic information, the first position information and at least two preset scanning positions of the target object are acquired and the magnetic resonance scanning of the current target scanning position is detected to be completed, the next target scanning position is acquired and the target object is subjected to the magnetic resonance scanning based on the next target scanning position, so that the magnetic resonance scanning of a plurality of positions to be scanned can be automatically performed during the magnetic resonance scanning, a conventional scanning sequence is obtained, the preparation time of the magnetic resonance scanning of a target user is greatly reduced, and the dependence degree of the magnetic resonance scanning on the professional ability of the target user is reduced.
Example four
Fig. 4 is a schematic structural diagram of a magnetic resonance system scanning apparatus according to a fourth embodiment of the present invention. A magnetic resonance system of an embodiment of the invention comprises a scan bed and a scanning apparatus comprising a magnet. The magnetic resonance system scanning device can be used for executing the scanning method of the magnetic resonance system provided by any embodiment of the invention. The specific structure of the magnetic resonance system scanning device is as follows: an information acquisition module 41, a driving module 42 and a scanning module 43.
The information acquiring module 41 is configured to acquire basic feature information of a target object, first position information of the target object on the scanning bed, and at least one preset scanning part, where the basic feature information includes at least one of age, sex, height, and weight;
a driving module 42, configured to drive the scanning bed according to the first position information and feature information of the target object, so as to move the preset scanning location to the detection area;
a scanning module 43, configured to excite the preset scanning portion with an imaging sequence to acquire a magnetic resonance image of the preset scanning portion.
According to the technical scheme of the embodiment of the invention, the bed entering distance can be automatically calculated according to the characteristic information of the target object and the position of the target object on the scanning bed by acquiring the basic characteristic information of the target object, the first position information of the target object on the scanning bed and at least one preset scanning position, wherein the basic characteristic information comprises at least one of age, sex, height and weight, the position to be scanned is automatically moved to the detection area, and the time of moving the position to be scanned to the detection area by a target user is reduced. And then, the scanning bed is driven according to the first position information, the basic characteristic information of the target object and the part to be scanned so as to move the preset scanning part to the detection area, so that the requirement on the working skill of the target user is reduced, and the clinical work efficiency of the target user is improved. And further, exciting the preset scanning part by using an imaging sequence to acquire a magnetic resonance image of the preset scanning part and guide the completion of a magnetic resonance scanning task. According to the technical scheme, the problems that the target user needs to manually move the part to be scanned to the detection area according to different target objects, the part to be scanned and the position of the target object on the scanning bed in the magnetic resonance scanning task, the workload is complicated, and the target user needs to have higher professional skills are solved, the part to be scanned is automatically moved to the detection area according to the different target objects, the part to be scanned and the position of the target object on the scanning bed in the magnetic resonance scanning task, the workload of the target user is reduced, the scanning of a plurality of parts is automatically completed, and the clinical work efficiency is improved.
On the basis of the above technical solution, the driving module 42 may be specifically configured to:
determining second position information of the preset scanning part in the target object according to basic feature information of the target object;
determining third position information of a preset scanning part on the scanning bed according to the first position information and the second position information;
and driving the scanning bed according to the third position information so as to move the preset scanning position to the detection area.
On the basis of the above technical solution, the driving module 42 may be specifically configured to: determining second position information of the preset scanning part in the target object according to basic feature information of the target object;
determining third position information of a preset scanning part on the scanning bed according to the first position information and the second position information;
and driving the scanning bed according to the third position information so as to move the preset scanning position to the detection area.
On the basis of the above technical solution, the driving module 42 may be specifically configured to: determining a pressure distribution map of a target object through a plurality of pressure sensors arranged on the scanning bed;
determining the contour of the target object according to the pressure distribution map of the target object;
and determining second position information of the preset scanning part in the target object according to the contour of the target object and the basic characteristic information of the target object.
Illustratively, the photographing apparatus includes: a camera or an infrared imaging device.
On the basis of the above technical solution, the scanning device may further include: the pre-calibration module is scanned.
A scan pre-calibration module to perform a scan pre-calibration of the magnetic resonance system prior to the exciting of the preset scan site with an imaging sequence to acquire a magnetic resonance image of the preset scan site, wherein the scan pre-calibration includes at least one of a calibration for transmit coil amplitude and phase, a calibration for B0 field, and a calibration for B1 field.
On the basis of the above technical solution, the information obtaining module 41 may be specifically configured to: acquiring basic characteristic information and at least one preset scanning part of a target object, wherein the method comprises the following steps:
receiving basic characteristic information of a target object input by a user and at least one preset scanning part, wherein the basic characteristic information is sent by a man-machine interaction device; or,
receiving voice information input by a target user, and determining basic characteristic information and at least one preset scanning part of a target object according to the voice information.
On the basis of the above technical solution, the scanning module 43 may be specifically configured to: scanning the detection area based on the positioning sequence pulse to obtain a positioning image, wherein the positioning image comprises at least one of a cross section positioning image, a coronal plane positioning image and a sagittal plane positioning image;
identifying the positioning image based on a preset image identification algorithm to obtain each actual scanning part in the positioning image;
pre-positioning the positioning image according to the preset scanning part and each actual scanning part to generate pre-positioning information;
and performing magnetic resonance scanning on the target object based on the predetermined position information to acquire a magnetic resonance image of the preset scanning part.
On the basis of the above technical solution, the scanning module 43 may be specifically configured to: and selecting a target scanning sequence according to the pre-positioning information, and carrying out magnetic resonance scanning on the target object based on the target scanning sequence.
On the basis of the above technical solution, the scanning device may further include: a multi-part auto-scan module.
And the multi-position automatic scanning module is used for acquiring a next target scanning position and carrying out magnetic resonance scanning on the target object based on the next target scanning position when the basic characteristic information, the first position information and at least two preset scanning positions of the target object are acquired and the magnetic resonance scanning of the current target scanning position is detected to be finished.
The scanning device of the magnetic resonance system provided by the embodiment of the invention can execute the scanning method of the magnetic resonance system provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE five
Fig. 5 is a schematic structural diagram of an apparatus according to a fifth embodiment of the present invention, as shown in fig. 5, the apparatus includes a processor 50, a memory 51, an input device 52, and an output device 53; the number of processors 50 in the device may be one or more, and one processor 50 is taken as an example in fig. 5; the processor 50, the memory 51, the input device 52 and the output device 53 in the apparatus may be connected by a bus or other means, which is exemplified in fig. 5.
The memory 51 is used as a computer readable storage medium for storing software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the scanning method of the magnetic resonance system in the embodiment of the present invention (for example, the information acquisition module 41, the driving module 42, and the scanning module 43 in the magnetic resonance scanning apparatus). The processor 50 executes various functional applications of the apparatus and data processing, i.e. implements the scanning method of the magnetic resonance system described above, by running software programs, instructions and modules stored in the memory 51.
The memory 51 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 51 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 51 may further include memory located remotely from the processor 50, which may be connected to the device/terminal/server via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 52 may be used to receive input numbers, character information, touch selection operations, or voice input, as well as to generate signal inputs relating to user settings and function control of the apparatus. The output means 53 may comprise an interactive device such as a touch screen of a magnetic resonance system or a hand-held touch screen tablet.
EXAMPLE six
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method of scanning of a magnetic resonance system, the method including:
acquiring basic characteristic information of a target object, first position information of the target object on the scanning bed and at least one preset scanning position, wherein the basic characteristic information comprises at least one of age, sex, height and weight;
driving the scanning bed according to the first position information and basic characteristic information of a target object so as to move the preset scanning position to the detection area;
and exciting the preset scanning part by utilizing an imaging sequence so as to acquire a magnetic resonance image of the preset scanning part.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the scanning method of the magnetic resonance system provided by any embodiments of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the magnetic resonance system scanning apparatus, the units and modules included in the embodiment are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.