Magnetic resonance imaging method, device, equipment and storage medium

Abstract

The embodiment of the present invention provides a magnetic resonance imaging method, apparatus, device and storage medium, characterized in that it includes: when performing magnetic resonance scanning on the second sub-region of the scanned object, obtaining the first local magnetic resonance scanning data of at least one currently scanned sub-region; generating a global magnetic resonance reconstruction image based on the first local magnetic resonance scanning data; displaying the global magnetic resonance reconstruction image; after the scanning of the second sub-region is completed, generating a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data; and displaying the new global magnetic resonance reconstruction image. By updating the displayed magnetic resonance reconstruction image based on the magnetic resonance scanning data of the scanned sub-region when scanning the current sub-region, image display during the scanning process is achieved, so that the user can promptly discover possible problems through the displayed images, thereby improving the inspection efficiency.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of imaging technology, and in particular to a magnetic resonance imaging method, device, equipment and storage medium. Background Art

[0002] Magnetic resonance imaging uses the magnetic resonance phenomenon to obtain electromagnetic signals from the subject and reconstruct the image information of the subject. Compared with other medical imaging technologies, its main disadvantage is its long acquisition time. High-resolution and high-definition magnetic resonance scanning takes more time. The scanning parameters of magnetic resonance imaging are an important factor affecting the imaging quality. If the operator is negligent and the scanning parameters are inappropriate, the field of view is incorrect, etc., the image is unavailable and needs to be re-acquired. It is necessary to wait for the complete acquisition time and reconstruction time to discover the error. It can be seen that how to provide a timely and effective imaging parameter adjustment solution is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The embodiments of the present invention provide a magnetic resonance imaging method, apparatus, device and storage medium to timely discover magnetic resonance scanning problems and effectively speed up the generation of images.

[0004] In a first aspect, an embodiment of the present invention provides a magnetic resonance imaging method, comprising:

[0005] When performing magnetic resonance scanning on a second sub-region of the scan object, acquiring first local magnetic resonance scanning data of at least one currently scanned sub-region;

[0006] generating a global magnetic resonance reconstruction image based on the first local magnetic resonance scan data;

[0007] Displaying the global magnetic resonance reconstruction image;

[0008] After scanning the second sub-region, generating a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data;

[0009] The new global magnetic resonance reconstruction image is displayed.

[0010] Optionally, based on the above solution, generating a global magnetic resonance reconstruction image based on the first local magnetic resonance scan data includes:

[0011] Completing the first local magnetic resonance scanning data to obtain completed global magnetic resonance scanning data, and reconstructing the global magnetic resonance scanning data to obtain a global magnetic resonance reconstructed image;

[0012] Alternatively, image reconstruction is performed on the first local magnetic resonance scanning data to obtain a local magnetic resonance reconstructed image, and the local magnetic resonance reconstructed image is complemented to obtain a complemented global magnetic resonance reconstructed image.

[0013] Optionally, based on the above solution, the scanning order of the sub-regions of the scan object is determined according to the data distribution position of the scan data of the sub-regions in the K space.

[0014] Optionally, based on the above solution, the sub-region includes a first sub-region and a second sub-region scanned sequentially, and the first sub-region includes central data of the K space.

[0015] Optionally, based on the above solution, the number and / or size of the sub-regions are determined according to at least one factor of image refresh rate, image reconstruction resource consumption and image quality.

[0016] Optionally, based on the above solution, the size of the sub-region is determined according to the acquisition time and image reconstruction time of the sub-region.

[0017] Optionally, based on the above scheme, the first local magnetic resonance scanning data and the second local magnetic resonance scanning data are data obtained by repeated scanning of at least two sequences, or the first local magnetic resonance scanning data and the second local magnetic resonance scanning data are data obtained by intercepting and sampling the original scanning data.

[0018] In a second aspect, an embodiment of the present invention further provides a magnetic resonance imaging device, comprising:

[0019] A local data acquisition module, configured to acquire first local magnetic resonance scanning data of at least one currently scanned sub-region when performing magnetic resonance scanning on a second sub-region of the scanned object, and acquire local magnetic resonance scanning data of at least one currently scanned sub-region;

[0020] A magnetic resonance image generation module, configured to generate a global magnetic resonance reconstruction image based on the first local magnetic resonance scanning data and generate a magnetic resonance reconstruction image based on the local magnetic resonance scanning data;

[0021] A magnetic resonance parameter image display module, used for displaying a global magnetic resonance reconstruction image;

[0022] The magnetic resonance image generation module is further used to generate a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data after scanning the second sub-region is completed;

[0023] The magnetic resonance image display module is also used to display the new global magnetic resonance reconstruction image.

[0024] In a third aspect, an embodiment of the present invention further provides a computer device, the device comprising:

[0025] one or more processors;

[0026] A storage device for storing one or more programs;

[0027] When one or more programs are executed by one or more processors, the one or more processors implement the magnetic resonance imaging method provided by any embodiment of the present invention.

[0028] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a magnetic resonance imaging method as provided in any embodiment of the present invention.

[0029] The magnetic resonance imaging method provided by the embodiment of the present invention acquires the first local magnetic resonance scanning data of at least one scanned sub-region when performing magnetic resonance scanning on the second sub-region of the scanned object; generates a global magnetic resonance reconstruction image based on the first local magnetic resonance scanning data; displays the global magnetic resonance reconstruction image; generates a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data after scanning the second sub-region; and displays the new global magnetic resonance reconstruction image. By updating the displayed magnetic resonance reconstruction image based on the magnetic resonance scanning data of the scanned sub-region when scanning the current sub-region, image display during the scanning process is achieved, so that the user can promptly discover possible problems through the displayed images, thereby improving inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1a is a flow chart of a magnetic resonance imaging method provided by Embodiment 1 of the present invention;

[0031] Figure 1b is a timing diagram of a magnetic resonance imaging method provided by Embodiment 1 of the present invention;

[0032] Figure 2 is a structural schematic diagram of a magnetic resonance imaging device provided by Embodiment 2 of the present invention;

[0033] Figure 3 It is a structural diagram of a computer device provided in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] Embodiment 1

[0036] Figure 1a 1 is a flowchart of a magnetic resonance imaging method provided by the first embodiment of the present invention. This embodiment is applicable to the case of performing magnetic resonance scanning. The method can be executed by a magnetic resonance imaging device, and the magnetic resonance imaging device can be implemented in software and / or hardware. For example, the magnetic resonance imaging device can be configured in a computer device. Figure 1a As shown, the method includes:

[0037] S110. When performing magnetic resonance scanning on a second sub-region of the scan object, first local magnetic resonance scanning data of at least one currently scanned sub-region is acquired.

[0038] The current workflow of magnetic resonance scanning is to reconstruct the original data after it is acquired and then output it to the interface for the operator to view. If the operator is negligent and the scanning parameters are inappropriate, the field of view is incorrect, etc., resulting in the image being unavailable and requiring re-acquisition, etc., it is necessary to wait for the complete acquisition time and reconstruction time before discovering the error under the current workflow. In order to solve the above technical problems, the embodiment of the present invention improves the workflow of magnetic resonance scanning imaging, and before the original data is fully acquired, it uses part of the acquired data to reconstruct and display it on the operation interface in a timely manner, so as to help the operator to discover possible problems in a timely manner.

[0039] In general, in the embodiment of the present invention, the magnetic resonance data to be collected is decomposed into several data blocks and collected in sequence, and each part is reconstructed and displayed separately to shorten the process from the start of collection to the display. During the collection process, the partially collected data is reconstructed after the completion operation, so that the image can be reconstructed and displayed before the data collection is completed, so that the operator can find problems from the image in time. After the collected data is updated, it is reconstructed based on more data obtained and then displayed on the interface, so that as the collected data increases, the displayed image will become clearer and clearer.

[0040] In this embodiment, when performing magnetic resonance scanning on the scanned object, the scan area is divided into at least two sub-areas, and the sub-areas are scanned in sequence according to a set order. The number of sub-areas into which the scan area is divided can be set according to actual needs. Optionally, the number of sub-areas is determined according to at least one factor of image refresh rate, image reconstruction resource consumption, and image quality. Exemplarily, when the image refresh rate requirement is high and the image reconstruction resource consumption is low, a larger number can be set as the number of sub-areas. When the image reconstruction resource consumption is high, a smaller number can be set as the number of sub-areas.

[0041] In another determination method, the size of the sub-region is determined according to the acquisition time and image reconstruction time of the sub-region. Optionally, the acquisition time and image reconstruction time of the sub-region can be calculated according to the size of the sub-region. In this embodiment, image reconstruction is performed after acquisition is completed, and data acquisition of the next sub-region is performed during the image reconstruction process. Therefore, the optimal number and size of sub-regions make acquisition and reconstruction continuous in time without idle time. Figure 1b is a timing diagram of a magnetic resonance imaging method provided by the first embodiment of the present invention. Figure 1b As shown, during the data collection process of the sub-region, the image reconstruction operation is performed, and the data collection and image reconstruction are continuous in time, which speeds up the display speed.

[0042] The scanning order of the sub-regions is not limited in the present embodiment, and the scanning order of the sub-regions can be set according to actual needs. Preferably, the scanning order of the sub-regions of the scanned object is determined according to the data distribution position of the scanning data of the sub-regions in the K space. Specifically, the scanning order of the sub-regions can be set according to the position of the scanning data of the sub-regions in the K space. The sub-region corresponding to the center data of the K space can be scanned first, then the sub-region corresponding to the data around the center of the K space can be scanned, and finally the sub-region corresponding to the edge data of the K space can be scanned. Prioritizing the scanning of the sub-region corresponding to the center data of the K space can improve the image quality of the first image. Based on this, the sub-regions include a first sub-region and a second sub-region scanned sequentially, and the first sub-region includes the center data of the K space. Optionally, the first sub-region can be the center data of the K space, or it can include the center data and part of the edge data of the K space. When the first sub-region is the center data of the K space, the quality of the generated first image is higher.

[0043] The second sub-region may be any sub-region in the magnetic resonance scanning process. That is, when any sub-region of the scanned object is scanned, magnetic resonance scanning data of the scanned sub-region may be obtained as the first local magnetic resonance scanning data.

[0044] Exemplarily, assuming that the scanning area is divided into four sub-areas: sub-area 1, sub-area 2, sub-area 3 and sub-area 4, the sub-area currently being scanned (i.e., the second sub-area) is sub-area 3, and the scanned sub-areas are sub-area 1 and sub-area 2, then the magnetic resonance scanning data of sub-area 1 and / or sub-area 2 can be acquired as the first local magnetic resonance scanning data.

[0045] Optionally, the magnetic resonance scanning data of part of the scanned sub-areas may be obtained as the first local magnetic resonance scanning data, or the magnetic resonance scanning data of all the scanned sub-areas may be obtained as the first local magnetic resonance image data. The magnetic resonance scanning data of the scanned sub-areas may be data obtained by repeating the sequence several times (within several repetition times TR), or data obtained by intercepting and sampling.

[0046] S120 . Generate a global magnetic resonance reconstruction image based on the first local magnetic resonance scanning data.

[0047] In this embodiment, after acquiring the first local magnetic resonance scan data, image reconstruction is performed based on the first local magnetic resonance scan data to obtain a magnetic resonance reconstructed image. It can be understood that the first local magnetic resonance scan data is part of the data collected during the data collection process required to complete a normal image reconstruction, that is, part of the magnetic resonance scan data of the scanning area. Therefore, when generating a global magnetic resonance reconstructed image based on the first local magnetic resonance scan data, it is necessary to complete and reconstruct the magnetic resonance scan data to obtain a global magnetic resonance reconstructed image. Among them, the global magnetic resonance reconstructed image can be a magnetic resonance reconstructed image of a pre-set image reconstruction area.

[0048] Optionally, generating a global magnetic resonance reconstruction image based on the first local magnetic resonance scan data includes: completing the first local magnetic resonance scan data to obtain completed global magnetic resonance scan data, reconstructing the global magnetic resonance scan data to obtain a global magnetic resonance reconstructed image; or reconstructing the first local magnetic resonance scan data to obtain a local magnetic resonance reconstructed image, completing the local magnetic resonance reconstructed image to obtain a completed global magnetic resonance reconstructed image. In other words, the first local magnetic resonance scan data may be completed after image reconstruction to obtain a global magnetic resonance reconstructed image, or an image may be reconstructed according to the first local magnetic resonance scan data and then completed to obtain a global magnetic resonance reconstructed image. Global magnetic resonance scan data may be understood as scan data obtained by completing a magnetic resonance scan task.

[0049] From the perspective of K-space, global MRI scan data refers to the complete K-space data required for a normal image reconstruction in the prior art, and local MRI scan data refers to certain fragments of K-space data acquired before the acquisition is complete. Based on this, it can be understood that global MRI scan data corresponds to data obtained after a MRI scan sequence is scanned, and local MRI scan data corresponds to data acquired in a scan portion of a MRI scan sequence.

[0050] When the magnetic resonance scan data is first completed and then the magnetic resonance image is reconstructed. There are many methods for data completion. In one embodiment, the first local magnetic resonance scan data is completed to obtain the completed global magnetic resonance scan data, including: determining the regional K space data corresponding to each first local magnetic resonance scan data, setting the K space data outside the regional K space data in the global K space data to a set value, and obtaining the completed global K space data as the global magnetic resonance scan data; or, determining the regional K space data corresponding to each first local magnetic resonance scan data, interpolating based on the regional K space data, and obtaining the completed global K space data as the global magnetic resonance scan data; or, determining the regional K space data corresponding to each first local magnetic resonance scan data, and obtaining the completed global K space data as the global magnetic resonance scan data according to the regional K space data and the pre-trained data completion model. In general, when the first local magnetic resonance scan data is K space data, the first local magnetic resonance scan data is completed by at least one of K space filling set values, interpolation methods, and artificial intelligence reasoning to obtain global K space data as global magnetic resonance scan data. Optionally, the set value is 0, that is, the K space data outside the regional K space data is set to 0. The interpolation method can refer to the interpolation method in the prior art, which will not be repeated here. The artificial intelligence reasoning method can be: pre-training the data completion model, and completing the K space data based on the trained data completion model.

[0051] When a magnetic resonance image is reconstructed first and then the magnetic resonance image is completed. The method can be performed by first reconstructing the K-space data and then interpolating and completing it. The first local magnetic resonance reconstructed image is completed to obtain a completed global magnetic resonance reconstructed image, including: interpolating the pixel values ​​of adjacent pixels according to the pixel values ​​of each pixel in the first local magnetic resonance image to obtain a completed global magnetic resonance reconstructed image. Optionally, the first local magnetic resonance image can be completed by interpolation to obtain a global magnetic resonance reconstructed image.

[0052] S130, displaying the global magnetic resonance reconstruction image.

[0053] After the global magnetic resonance reconstruction image is generated, the global magnetic resonance reconstruction image is displayed so that the operator can analyze whether the scanning parameters need to be modified through the displayed magnetic resonance image.

[0054] S140: After scanning the second sub-region, generate a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data.

[0055] S150: Displaying the new global magnetic resonance reconstruction image.

[0056] After the scanning of the second sub-region is completed, the global magnetic resonance reconstruction image is regenerated and the global magnetic resonance reconstruction image generated based on the first local magnetic resonance scanning data in the above embodiment is updated based on the regenerated global magnetic resonance reconstruction image.

[0057] Specifically, after the second sub-region is scanned, the magnetic resonance scanning data of the second sub-region is obtained as the second local magnetic resonance scanning data, the second local magnetic resonance scanning data and the first local magnetic resonance scanning data are merged, and the magnetic resonance image is reconstructed based on the merged data to obtain a new global magnetic resonance reconstruction image, and the new global magnetic resonance reconstruction image is displayed. A solution for adjusting the displayed magnetic resonance image during the scanning process is implemented.

[0058] The process of reconstructing the magnetic resonance image based on the merged data can refer to the process of generating a global magnetic resonance reconstruction image based on the first local magnetic resonance scanning data in the above embodiment. That is, when the magnetic resonance scanning task is not completed, the magnetic resonance image reconstruction based on the merged data still needs to be completed to generate a global magnetic resonance reconstruction image.

[0059] It should be noted that the first local magnetic resonance scanning data and the second local magnetic resonance scanning data are data obtained by repeated scanning of at least two sequences, or the first local magnetic resonance scanning data and the second local magnetic resonance scanning data are data obtained by intercepting and sampling the original scanning data. In other words, the sub-region corresponding to the first local magnetic resonance scanning data and the sub-region corresponding to the second local magnetic resonance scanning data may be the same sub-region or different sub-regions, which is specifically determined according to imaging requirements and sequence settings, and is not limited here.

[0060] The magnetic resonance imaging method provided by the embodiment of the present invention acquires the first local magnetic resonance scanning data of at least one scanned sub-region when performing magnetic resonance scanning on the second sub-region of the scanned object; generates a global magnetic resonance reconstruction image based on the first local magnetic resonance scanning data; displays the global magnetic resonance reconstruction image; generates a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data after scanning the second sub-region; and displays the new global magnetic resonance reconstruction image. By updating the displayed magnetic resonance reconstruction image based on the magnetic resonance scanning data of the scanned sub-region when scanning the current sub-region, image display during the scanning process is achieved, so that the user can promptly discover possible problems through the displayed images, thereby improving inspection efficiency.

[0061] Embodiment 2

[0062] Figure 21 is a schematic diagram of the structure of a magnetic resonance imaging device provided by the second embodiment of the present invention. The magnetic resonance imaging device can be implemented in software and / or hardware, for example, the magnetic resonance imaging device can be configured in a computer device. Figure 2 As shown, the device includes a local data acquisition module 210, a magnetic resonance image generation module 220 and a magnetic resonance image display module 230, wherein:

[0063] The local data acquisition module 210 is used to acquire first local magnetic resonance scanning data of at least one currently scanned sub-region when performing magnetic resonance scanning on the second sub-region of the scanned object;

[0064] A magnetic resonance image generation module 220, configured to generate a global magnetic resonance reconstruction image based on the first local magnetic resonance scan data;

[0065] The magnetic resonance image display module 230 is used to display the global magnetic resonance reconstruction image.

[0066] The magnetic resonance image generation module 220 is further configured to generate a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data after scanning the second sub-region is completed;

[0067] The magnetic resonance image display module 230 is also used to display the new global magnetic resonance reconstruction image.

[0068] The magnetic resonance imaging device provided by the embodiment of the present invention acquires the first local magnetic resonance scanning data of at least one scanned sub-region through the local data acquisition module when performing magnetic resonance scanning on the second sub-region of the scanned object; the magnetic resonance image generation module generates a global magnetic resonance reconstruction image based on the first local magnetic resonance scanning data; the magnetic resonance image display module displays the global magnetic resonance reconstruction image; after the magnetic resonance image generation module completes scanning the second sub-region, it generates a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data; the magnetic resonance image display module displays the new global magnetic resonance reconstruction image. By updating the displayed magnetic resonance reconstruction image based on the magnetic resonance scanning data of the scanned sub-region when scanning the current sub-region, image display during the scanning process is achieved, so that the user can promptly find possible problems through the displayed images, thereby improving the inspection efficiency.

[0069] Optionally, based on the above solution, the magnetic resonance image generation module 220 is specifically used for:

[0070] Completing the first local magnetic resonance scan data to obtain completed global magnetic resonance scan data, reconstructing the global magnetic resonance scan data to obtain a global magnetic resonance reconstructed image; or,

[0071] The first local magnetic resonance scanning data is reconstructed to obtain a local magnetic resonance reconstructed image, and the local magnetic resonance reconstructed image is complemented to obtain a complemented global magnetic resonance reconstructed image.

[0072] Optionally, based on the above solution, the scanning order of the sub-regions of the scan object is determined according to the data distribution position of the scan data of the sub-regions in the K space.

[0073] Optionally, based on the above solution, the sub-region includes a first sub-region and a second sub-region scanned sequentially, and the first sub-region includes central data of the K space.

[0074] Optionally, based on the above solution, the number and / or size of the sub-regions are determined according to at least one factor of image refresh rate, image reconstruction resource consumption and image quality.

[0075] Optionally, based on the above solution, the size of the sub-region is determined according to the acquisition time and image reconstruction time of the sub-region.

[0076] Optionally, based on the above scheme, the first local magnetic resonance scanning data and the second local magnetic resonance scanning data are data obtained by repeated scanning of at least two sequences, or the first local magnetic resonance scanning data and the second local magnetic resonance scanning data are data obtained by intercepting and sampling the original scanning data.

[0077] The magnetic resonance imaging device provided by the embodiment of the present invention can execute the magnetic resonance imaging method provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0078] Embodiment 3

[0079] Figure 3 It is a structural diagram of a computer device provided in Embodiment 3 of the present invention. Figure 3 A block diagram of an exemplary computer device 312 suitable for use in implementing embodiments of the present invention is shown. Figure 3 The computer device 312 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0080] like Figure 3 As shown, the computer device 312 is in the form of a general-purpose computing device. The components of the computer device 312 may include, but are not limited to: one or more processors 316, a system memory 328, and a bus 318 that connects different system components (including the system memory 328 and the processor 316).

[0081] Bus 318 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a local bus to processor 316, or a bus structure using any of a variety of bus architectures. These architectures include, by way of example, but are not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MAC) bus, an Enhanced ISA bus, a Video Electronics Standards Association (VESA) local bus, and a Peripheral Component Interconnect (PCI) bus.

[0082] The computer device 312 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the computer device 312, including volatile and non-volatile media, removable and non-removable media.

[0083] System memory 328 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 330 and / or cache memory 332. Computer device 312 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage device 334 may be used to read and write non-removable, non-volatile magnetic media ( Figure 3 not shown, usually called a "hard drive"). Although Figure 3 Not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk"), and an optical disk drive for reading and writing to a removable non-volatile optical disk (e.g., a CD-ROM, a DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to the bus 318 via one or more data medium interfaces. The memory 328 may include at least one program product having a set (e.g., at least one) of program modules that are configured to perform the functions of the various embodiments of the present invention.

[0084] A program / utility 340 having a set (at least one) of program modules 342 may be stored, for example, in memory 328, such program modules 342 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment. Program modules 342 generally perform the functions and / or methods of the embodiments described herein.

[0085] The computer device 312 may also communicate with one or more external devices 314 (e.g., keyboard, pointing device, display 324, etc.), may also communicate with one or more devices that enable a user to interact with the computer device 412, and / or communicate with any device that enables the computer device 312 to communicate with one or more other computing devices (e.g., network card, modem, etc.). Such communication may be performed via an input / output (I / O) interface 322. In addition, the computer device 312 may also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN) and / or public network, such as the Internet) via a network adapter 320. As shown, the network adapter 320 communicates with other modules of the computer device 312 via a bus 318. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the computer device 312, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0086] The processor 316 executes various functional applications and data processing by running the programs stored in the system memory 328, such as implementing the magnetic resonance imaging method provided by the embodiment of the present invention, including:

[0087] When performing magnetic resonance scanning on a second sub-region of the scan object, acquiring first local magnetic resonance scanning data of at least one currently scanned sub-region;

[0088] generating a global magnetic resonance reconstruction image based on the first local magnetic resonance scan data;

[0089] Displaying the global magnetic resonance reconstruction image;

[0090] After scanning the second sub-region, generating a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data;

[0091] The new global magnetic resonance reconstruction image is displayed.

[0092] Of course, those skilled in the art will appreciate that the processor may also implement the technical solution of the magnetic resonance imaging method provided by any embodiment of the present invention.

[0093] Embodiment 4

[0094] Embodiment 4 of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the magnetic resonance imaging method provided by the embodiment of the present invention is implemented, including:

[0095] When performing magnetic resonance scanning on a second sub-region of the scan object, acquiring first local magnetic resonance scanning data of at least one currently scanned sub-region;

[0096] generating a global magnetic resonance reconstruction image based on the first local magnetic resonance scan data;

[0097] Displaying the global magnetic resonance reconstruction image;

[0098] After scanning the second sub-region, generating a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data;

[0099] The new global magnetic resonance reconstruction image is displayed.

[0100] Of course, the computer program stored in a computer-readable storage medium provided by an embodiment of the present invention is not limited to the above method operations, but can also execute related operations of the magnetic resonance imaging method provided by any embodiment of the present invention.

[0101] The computer storage medium of the embodiment of the present invention can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.

[0102] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0103] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0104] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0105] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A magnetic resonance imaging method, It is characterized in that include: When performing magnetic resonance scanning on a second sub-region of the scan object, acquiring first local magnetic resonance scanning data of at least one currently scanned sub-region; generating a global magnetic resonance reconstruction image based on the first local magnetic resonance scanning data; Displaying the global magnetic resonance reconstruction image; After scanning the second sub-region, generating a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data; Displaying the new global magnetic resonance reconstructed image; Wherein, generating a global magnetic resonance reconstruction image based on the first local magnetic resonance scanning data includes: The first local magnetic resonance scan data is completed to obtain completed global magnetic resonance scan data, and the global magnetic resonance scan data is reconstructed to obtain the global magnetic resonance reconstructed image; wherein the first local magnetic resonance scan data is completed by at least one of filling a set value in K space, an interpolation method, and artificial intelligence reasoning; or, performing image reconstruction on the first local magnetic resonance scanning data to obtain a local magnetic resonance reconstructed image, and completing the local magnetic resonance reconstructed image to obtain a completed global magnetic resonance reconstructed image; The first local magnetic resonance scanning data and the second local magnetic resonance scanning data are data obtained by repeated scanning of at least two sequences, or the first local magnetic resonance scanning data and the second local magnetic resonance scanning data are data obtained by intercepting and sampling the original scanning data; the first local magnetic resonance scanning data are magnetic resonance scanning data of part of the scanned sub-regions, or magnetic resonance scanning data of all the scanned sub-regions; the magnetic resonance scanning data of the scanned sub-regions are data obtained by repeated scanning of several sequences, or data obtained by intercepting and sampling; the number and / or size of the sub-regions are determined according to at least one factor among image refresh rate, image reconstruction resource consumption and image quality.

2. The method according to claim 1, It is characterized in that The scanning order of the sub-regions of the scan object is determined according to the data distribution position of the scan data of the sub-regions in the K space.

3. The method according to claim 2, It is characterized in that The sub-regions include a first sub-region and a second sub-region that are scanned sequentially, and the first sub-region includes central data of the K-space.

4. The method according to claim 1, It is characterized in that The number and / or size of the sub-regions are determined according to the acquisition time and image reconstruction time of the sub-regions.

5. A magnetic resonance imaging apparatus, It is characterized in that include: A local data acquisition module, used for acquiring first local magnetic resonance scanning data of at least one currently scanned sub-region when performing magnetic resonance scanning on a second sub-region of the scanned object; A magnetic resonance image generation module, configured to generate a global magnetic resonance reconstruction image based on the first local magnetic resonance scanning data; A magnetic resonance image display module, used for displaying the global magnetic resonance reconstruction image; The magnetic resonance image generation module is further configured to generate a new global magnetic resonance reconstruction image based on the second local magnetic resonance scanning data and the first local magnetic resonance scanning data after scanning the second sub-region is completed; The magnetic resonance image display module is also used to display the new global magnetic resonance reconstruction image; The magnetic resonance image generation module is further configured to complete the first local magnetic resonance scan data to obtain completed global magnetic resonance scan data, and to reconstruct the global magnetic resonance scan data to obtain a global magnetic resonance reconstructed image; wherein the completion of the first local magnetic resonance scan data is performed by at least one of filling a set value in K space, an interpolation method, and artificial intelligence reasoning; Or, image reconstruction is performed on the first local magnetic resonance scanning data to obtain a local magnetic resonance reconstructed image, and the local magnetic resonance reconstructed image is complemented to obtain a complemented global magnetic resonance reconstructed image; wherein, the first local magnetic resonance scanning data and the second local magnetic resonance scanning data are data obtained by repeated scanning of at least two sequences, or the first local magnetic resonance scanning data and the second local magnetic resonance scanning data are data obtained by intercepting and sampling the original scanning data; the first local magnetic resonance scanning data are the acquired magnetic resonance scanning data of part of the scanned sub-regions, or the acquired magnetic resonance scanning data of all the scanned sub-regions; the magnetic resonance scanning data of the scanned sub-regions are data obtained by repeated sequences of several times, or are data obtained by intercepting and sampling; wherein the number and / or size of the sub-regions are determined according to at least one factor among the image refresh rate, the image reconstruction resource consumption and the image quality.

6. A computer device, It is characterized in that The device comprises: one or more processors; A storage device for storing one or more programs; When one or more programs are executed by one or more processors, the one or more processors implement the magnetic resonance imaging method as described in any one of claims 1 to 4.

7. A computer-readable storage medium having a computer program stored thereon, It is characterized in that When the program is executed by a processor, the magnetic resonance imaging method according to any one of claims 1 to 4 is implemented.

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