CN109692015B - Scanning parameter adjustment method, device, equipment and storage medium - Google Patents
Scanning parameter adjustment method, device, equipment and storage medium Download PDFInfo
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/48—Diagnostic techniques
- A61B6/482—Diagnostic techniques involving multiple energy imaging
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- A—HUMAN NECESSITIES
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/037—Emission tomography
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
Abstract
The embodiment of the invention discloses a method, a device, equipment and a storage medium for adjusting scanning parameters. The method comprises the following steps: acquiring a scanning protocol under each mode in a multi-mode imaging system, wherein the scanning protocol comprises a reference scanning protocol and at least one scanning protocol to be adjusted; and adjusting the scanning parameters to be adjusted in at least one scanning protocol to be adjusted according to the reference scanning parameters in the reference scanning protocol, wherein the reference scanning parameters and the scanning parameters to be adjusted have the same attribute information. According to the technical scheme, the multi-mode images after the scanning parameter adjustment can be guaranteed to be consistent in time level to achieve accurate registration under the same physiological state, and consistent in space level to achieve accurate registration of the same anatomical position.
Description
Technical Field
Embodiments of the present invention relate to information processing technologies, and in particular, to a method, an apparatus, a device, and a storage medium for adjusting scan parameters.
Background
In the field of multi-modality imaging, in order to better observe the same physiological process state and the same anatomical position between different modalities, excluding the principle differences of imaging principles, contrast, etc., it is necessary to keep the scan parameters between the multi-modality images consistent at both the temporal and spatial levels. Especially micro lesions, are likely to be unable to register accurately between the multimodal images due to the differences in the scanning parameters described above. When the functional imaging and the anatomic reference images cannot be precisely aligned, the focus boundaries cannot be outlined according to the anatomic reference images so as to accurately calculate the functional quantitative parameters of the focus.
In particular, existing integrated synchronous acquisition devices, such as positron emission computed tomography (Positron Emission Tomography, PET) -magnetic resonance imaging (Magnetic Resonance Imaging, MR) devices, namely PET-MR devices, also have the same problems, since the prior art only macroscopically ensures that PET and MR acquire images of the same location within the same time period, but does not ensure microscopic temporal and spatial layer consistency. The above problems are likely to affect the diagnosis result of the doctor.
Disclosure of Invention
The embodiment of the invention provides a method, a device, equipment and a storage medium for adjusting scanning parameters, which are used for ensuring that multi-mode images after scanning parameter adjustment are consistent in a time layer to realize accurate registration under the same physiological state and in a space layer to realize accurate registration of the same anatomical position.
In a first aspect, an embodiment of the present invention provides a method for adjusting a scan parameter, which may include:
acquiring a scanning protocol under each mode in a multi-mode imaging system, wherein the scanning protocol comprises a reference scanning protocol and at least one scanning protocol to be adjusted;
and adjusting the scanning parameters to be adjusted in at least one scanning protocol to be adjusted according to the reference scanning parameters in the reference scanning protocol, wherein the reference scanning parameters and the scanning parameters to be adjusted have the same attribute information.
Optionally, the method may further include:
and constructing a reference scanning protocol according to the reference scanning parameters, wherein the reference scanning parameters comprise preset time-related scanning parameters and preset space-related scanning parameters.
Optionally, the method may further include:
any scanning protocol in each mode is used as a reference scanning protocol.
Optionally, the method may further include:
establishing a parameter corresponding relation between each reference scanning parameter and each scanning parameter to be adjusted according to attribute information of the reference scanning parameter and the scanning parameter to be adjusted;
correspondingly, adjusting the scan parameters to be adjusted of at least one scan protocol to be adjusted according to the reference scan parameters in the reference scan protocol may include:
and adjusting the scanning parameters to be adjusted in at least one scanning protocol to be adjusted according to the reference scanning parameters in the reference scanning protocol and the corresponding relation of the parameters.
Optionally, the method may further include:
determining a reference scanning parameter in a reference scanning protocol according to a region to be scanned of a target scanning object; wherein the reference scan parameters include a start slice position and an end slice position.
Optionally, the preset time-dependent scan parameters may include a start time of acquisition and/or a duration of acquisition per frame.
Alternatively, the preset spatially dependent scan parameters may comprise at least one of slice position, layer thickness, layer orientation, layer spacing, and resolution.
In a second aspect, an embodiment of the present invention further provides a scan parameter adjusting apparatus, where the apparatus may include:
the scanning protocol acquisition module is used for acquiring scanning protocols in various modes in the multi-mode imaging system, wherein the scanning protocols comprise a reference scanning protocol and at least one scanning protocol to be adjusted;
and the scanning parameter adjustment module is used for adjusting the scanning parameters to be adjusted in at least one scanning protocol to be adjusted according to the reference scanning parameters in the reference scanning protocol, wherein the reference scanning parameters and the scanning parameters to be adjusted have the same attribute information.
In a third aspect, an embodiment of the present invention further provides an apparatus, which may include:
one or more processors;
a memory for storing one or more programs,
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the scan parameter adjustment method provided by any embodiment of the present invention.
In a fourth aspect, an embodiment of the present invention further provides a computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the scan parameter adjustment method provided by any embodiment of the present invention.
According to the technical scheme, a scanning protocol under each mode in a multi-mode imaging system is obtained, and a reference scanning protocol and a scanning protocol to be adjusted are obtained; furthermore, according to the attribute information of the scanning parameters under each scanning protocol, the scanning parameters to be adjusted, which have the same attribute information as the reference scanning parameters in the reference scanning protocol, are adjusted based on the reference scanning parameters. The technical scheme can ensure that the multi-mode images after the scanning parameter adjustment are consistent in a time level to realize accurate registration under the same physiological state, and consistent in a space level to realize accurate registration of the same anatomical position.
Drawings
FIG. 1 is a flowchart of a scan parameter adjustment method according to a first embodiment of the present invention;
FIG. 2 is a flowchart of a scan parameter adjustment method according to a second embodiment of the present invention;
FIG. 3a is a first schematic diagram illustrating a scan parameter adjustment process according to a second embodiment of the present invention;
FIG. 3b is a second schematic diagram illustrating a scan parameter adjustment process according to a second embodiment of the present invention;
FIG. 3c is a third schematic diagram illustrating a scan parameter adjustment process according to a second embodiment of the present invention;
FIG. 4 is a block diagram showing a scanning parameter adjusting apparatus according to a third embodiment of the present invention;
fig. 5 is a schematic structural view of an apparatus according to a fourth embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Before describing the embodiment of the present invention, an application scenario of the embodiment of the present invention is described: an advantage of a multi-modality imaging system is that images in at least two modalities, which may be anatomical images such as computed tomography (Computed Tomography, CT) images, or functional images such as positron emission tomography (Positron Emission Computed Tomography, PET), magnetic resonance imaging (Magnetic Resonance, MR), may be obtained in a relatively short time. The images in at least two modes are accurately registered in the same anatomical position and the same physiological process state, so that doctors can diagnose from multiple angles of anatomy, physiology, metabolism and the like, and the accuracy of diagnosis is improved.
In particular, the multi-modality imaging system may include at least one imaging device, and the sum of the imaging devices forms at least two modalities. Of course, the imaging device described above may be a multi-modality imaging device, or may be a single-modality imaging device. The multi-modality imaging device may be a device having a multi-modality imaging function, such as a PET-CT device, a PET-MR device, or the like; the single modality imaging device may be a device having a single modality function, such as a CT device, a PET device, an MR device, or the like.
By way of example, the above-described multi-modality imaging system may comprise an MR device and a PET-CT device, the possible application scenarios of which are: the scanned image of the patient on the MR device is shown as possibly a liver tumor, and a PET/CT scan is subsequently performed in order to qualitatively study the tumor and confirm whether there is metastasis. In order to compare the MR image, the CT image and the PET image of the liver region, it is necessary to perform a liver scan by the PET-CT apparatus according to scan parameters such as the scan range, the layer thickness, the layer spacing, etc. of the MR apparatus. Furthermore, if liver dynamics enhancement is performed, dynamic acquisition is required at the same time point when the contrast agent arrives, such as hepatic arterial phase, portal phase and hepatic venous phase, delay phase, each of which acquires 1 or more phases, so that the dynamic acquisition time point of the PET-CT apparatus needs to be determined according to the dynamic acquisition time point of the MR apparatus.
However, existing imaging devices, such as PET-CT devices, acquire CT data first in a spiral acquisition mode, and then acquire PET data in a slice acquisition mode; since the PET data can be reconstructed later, the PET data reconstruction can be subsequently matched to the anatomical location after CT reconstruction. Therefore, the integrated imaging equipment such as the PET-CT equipment can only realize the correspondence of the space level, and can not realize the correspondence of the time level at all; moreover, spatial-level and temporal-level correspondence between non-integrated imaging devices, such as between PET-CT devices and MR devices, is more difficult to achieve.
Example 1
Fig. 1 is a flowchart of a scan parameter adjustment method according to a first embodiment of the present invention. The embodiment is applicable to the condition of adjusting the scanning parameters in the scanning protocols in different modes, and is particularly applicable to the condition of adjusting the scanning parameters in the scanning protocols in different modes in an integrated imaging device such as a PET-MR device. The method can be implemented by the scanning parameter adjusting device provided by the embodiment of the invention, and the device can be implemented by software and/or hardware.
Referring to fig. 1, the method of the embodiment of the present invention specifically includes the following steps:
s110, acquiring scanning protocols in all modes in the multi-mode imaging system, wherein the scanning protocols comprise a reference scanning protocol and at least one scanning protocol to be adjusted.
The modes in the multi-mode imaging system can be a CT mode, a PET mode, or an MR mode, but of course, other existing modes are also possible. Scanning protocols under various modalities may be directly associated with the modalities, such as a CT scanning protocol for controlling CT modality scanning, a PET scanning protocol for controlling PET modality scanning, an MR scanning protocol for controlling MR modality scanning, and so forth; of course, the scanning protocol in each mode may also be a virtual scanning protocol, which is not directly associated with the mode, i.e. the virtual scanning protocol need not be used for controlling scanning, but may be used only for controlling adjustment of scanning parameters.
Of course, in order to implement the function of adjusting the scan parameters, the scan protocols in each mode may be divided into a reference scan protocol and a scan protocol to be adjusted. As the name suggests, the scanning protocol to be adjusted may be adjusted with reference to the reference scanning protocol.
S120, adjusting the scanning parameters to be adjusted in at least one scanning protocol to be adjusted according to the reference scanning parameters in the reference scanning protocol, wherein the reference scanning parameters and the scanning parameters to be adjusted have the same attribute information.
The purpose of the scan parameter adjustment is to ensure that the acquired and reconstructed multi-mode images based on the multi-mode imaging system are consistent in time level to achieve accurate registration under the same physiological state, and consistent in space level to achieve accurate registration of the same anatomical position, so that the scan parameters with the same attribute information in each mode can be consistent in scan protocol. For example, scan parameters for different modalities that are used to control the layer spacing, the point in time at which the contrast agent reaches the target region, the same phase of the cardiac cycle, or the same phase of the respiratory cycle should be consistent. Therefore, the multi-mode comparison analysis is convenient for the same anatomical position and the same physiological state, and the problems of anatomical structure mismatch, anatomical structure motion state mismatch and the like of contrast agent development in different anatomical positions or different physiological states are avoided. These scan parameters with the same attribute information may be pre-selected by the user or may be trained by artificial intelligence (Artificial Intelligence, AI).
Specifically, the scan parameters to be adjusted in at least one scan protocol to be adjusted may be adjusted according to the reference scan parameters in the reference scan protocol. Of course, the reference scan parameter and the scan parameter to be adjusted should have the same attribute information, i.e. the adjustment of the scan parameter is an adjustment between the reference scan parameter and the scan parameter to be adjusted, which have the same attribute information. The adjustment of the scanning parameters may be performed before the start of scanning, or may be performed during the scanning. For example, the scanning parameters such as layer thickness, resolution and the like can be adjusted before the scanning starts, and the scanning parameters such as the starting time of each frame and the acquisition time of each frame during dynamic acquisition can be adjusted in real time during the scanning process.
According to the technical scheme, a scanning protocol under each mode in a multi-mode imaging system is obtained, and a reference scanning protocol and a scanning protocol to be adjusted are obtained; furthermore, according to the attribute information of the scanning parameters under each scanning protocol, the scanning parameters to be adjusted, which have the same attribute information as the reference scanning parameters in the reference scanning protocol, are adjusted based on the reference scanning parameters. The technical scheme can ensure that the multi-mode images after the scanning parameter adjustment are consistent in a time level to realize accurate registration under the same physiological state, and consistent in a space level to realize accurate registration of the same anatomical position.
Optionally, the method specifically may further include: establishing a parameter corresponding relation between each reference scanning parameter and each scanning parameter to be adjusted according to attribute information of the reference scanning parameter and the scanning parameter to be adjusted; correspondingly, adjusting the scan parameters to be adjusted of at least one scan protocol to be adjusted according to the reference scan parameters in the reference scan protocol may include: and adjusting the scanning parameters to be adjusted in at least one scanning protocol to be adjusted according to the reference scanning parameters in the reference scanning protocol and the corresponding relation of the parameters.
The attribute information of the scan parameters is diversified, so that the parameter correspondence between each reference scan parameter and each scan parameter to be adjusted can be pre-established in order to quickly find out which reference scan parameter and which scan parameter to be adjusted have the same attribute information, so as to realize the adjustment function of the scan parameters. Optionally, the multi-modality imaging system may analyze and correspond to the attribute information of the scan parameters in the scan protocols under different modalities, particularly those related to the temporal and/or spatial planes, to establish the parameter correspondence.
For example, a parameter correspondence is established among a reference scanning parameter a, a scanning parameter B to be adjusted, and a scanning parameter C to be adjusted, which are all used for controlling the interlayer spacing; furthermore, in the process of adjusting the scanning parameters, the reference scanning parameter a, the scanning parameter B to be adjusted and the scanning parameter C to be adjusted are determined to correspond to each other according to the parameter correspondence relationship, so that the value of the scanning parameter B to be adjusted and the value of the scanning parameter C to be adjusted can be directly adjusted according to the value of the reference scanning parameter a. Of course, the scan parameter B to be adjusted and the scan parameter C to be adjusted are scan parameters for controlling the interlayer spacing in the scan protocol under different modalities.
According to the reference scanning parameters in the reference scanning protocol and the corresponding relation of the parameters, the scanning parameters to be adjusted in at least one scanning protocol to be adjusted are adjusted, so that repeated analysis of attribute information can be effectively avoided, and the adjustment process is simple and rapid.
Optionally, on the basis of the above technical solution, the method may further include: determining a reference scanning parameter in a reference scanning protocol according to a region to be scanned of a target scanning object; wherein the reference scan parameters include a start slice position and an end slice position.
Wherein the determination of the region to be scanned of the target scan object implies a determination of the anatomical position to be registered, and the scan parameters related to the anatomical position may be a start slice position and an end slice position, i.e. a slice position in the region to be scanned where scanning is started and a slice position in which scanning is ended. The mode of determining the area to be scanned can be preset by a user, or can be automatically identified by a multi-mode imaging system according to the position and scanning range of a scanning bed, based on an image identification algorithm, an AI algorithm and the like.
For example, when the region to be scanned of the target scan object is the liver, the operation of the multi-modality imaging system may be: the user registers information of a target scanning object such as name, disease such as liver cancer in a system operation interface, and selects a scanning protocol; at this time, the system scans the abdomen positioning image of the target scan object according to the scan protocol, and the scan result may include the whole liver, part of lung and part of pelvis; further, the system automatically identifies the specific location of the liver based on the liver cancer information in the registration information, thereby determining reference scan parameters associated with the anatomical location in the reference scan protocol, such as the start slice position, end slice position, scan field of view, layer thickness, etc., so that the scan image can completely cover the liver region, but also cover as little as possible other extraneous regions other than the liver.
Of course, in addition to the reference scanning parameters, the scanning parameters to be adjusted can also be determined according to the area to be scanned. However, the scanning parameters to be adjusted, which have the same attribute information as the reference scanning parameters, are required to be adjusted finally. The above steps allow accurate determination of scan parameters related to anatomical locations.
Example two
Fig. 2 is a flowchart of a scan parameter adjustment method according to a second embodiment of the present invention. The present embodiment is optimized based on the above technical solutions. In this embodiment, optionally, the method may further include: and constructing a reference scanning protocol according to the reference scanning parameters, wherein the reference scanning parameters comprise preset time-related scanning parameters and preset space-related scanning parameters. Wherein, the explanation of the same or corresponding terms as the above embodiments is not repeated herein.
As shown in fig. 2, the method of this embodiment may specifically include the following steps:
s210, constructing a reference scanning protocol according to the reference scanning parameters, wherein the reference scanning parameters comprise preset time-related scanning parameters and preset space-related scanning parameters.
In order to achieve that the multi-mode image after the adjustment of the scanning parameters is consistent in the time level and the space level, the multi-mode image can be used as a reference-reference scanning parameter in the process of adjusting the scanning parameters, and can comprise a preset time-related scanning parameter and a preset space-related scanning parameter. Optionally, the preset time-related scan parameter may include an acquisition start time and/or an acquisition duration per frame, and of course, the acquisition duration per frame may be an acquisition duration per frame during dynamic acquisition; still alternatively, the preset spatially dependent scan parameters may include at least one of slice position, layer thickness, layer orientation, layer spacing, and resolution. In particular, the above-mentioned reference scan parameters may also include parameters for reconstruction.
Illustratively, the determining procedure of the reference scan parameter for constructing the reference scan protocol may be: and automatically extracting scanning parameters with the same attribute information in a scanning protocol under each mode in the multi-mode imaging system through a preset program, and taking the scanning parameters as reference scanning parameters. These scan parameters are correlated in time and/or space.
Further exemplary, the scan parameters preselected by the user may also be directly used as reference scan parameters for constructing the reference scan protocol. Of course, these scan parameters are scan parameters having the same attribute information in each scan protocol, but may not be all. Because, some scan parameters have the same attribute information in each scan protocol, they cannot be used for adjustment of scan parameters. For example, the minimum layer thickness in some scan protocols may be 3mm and the minimum layer thickness in some scan protocols may be 5mm, and then the layer thickness of 4mm is difficult to adjust in both scan protocols. Thus, the scan parameters used for adjustment should be those that the multi-modality imaging system can support for adjustment.
The reference scanning protocol constructed according to the reference scanning parameters can be independent of the existing scanning protocol under any mode. The established reference scanning protocol can be a real scanning protocol which is directly related to any mode and can be used for controlling scanning and adjusting scanning parameters; of course, the established reference scanning protocol may also be a virtual scanning protocol, which is not directly associated with the modality, but is used only for controlling the adjustment of the scanning parameters.
S220, acquiring scanning protocols in all modes in the multi-mode imaging system, wherein the scanning protocols comprise a reference scanning protocol and at least one scanning protocol to be adjusted.
S230, adjusting the scanning parameters to be adjusted in at least one scanning protocol to be adjusted according to the reference scanning parameters in the reference scanning protocol, wherein the reference scanning parameters and the scanning parameters to be adjusted have the same attribute information.
When the reference scanning protocol is constructed according to the reference scanning parameters, the adjustment process of the scanning parameters may be: and modifying the corresponding values of the reference scanning parameters in the reference scanning protocol according to the values of the scanning parameters selected by the user in advance and/or the values of the scanning parameters automatically generated by the system. And further, according to the modified numerical value of the reference scanning parameter and the pre-established corresponding relation and/or the analysis result of the multi-mode imaging system on the attribute information of each scanning parameter, the corresponding scanning parameter to be adjusted is adjusted.
As shown in fig. 3a, the reference scanning protocol, namely, the scanning protocol D, is constructed according to the reference scanning parameters, and when the values of the reference scanning parameters in the scanning protocol D are modified, the corresponding scanning protocols to be adjusted, namely, the values of the scanning parameters to be adjusted in the scanning protocol E and the scanning protocol F, are adjusted in real time according to the modified values of the reference scanning parameters, so as to achieve the consistency of the scanning protocols in each mode.
According to the technical scheme of the embodiment of the invention, the reference scanning protocol constructed by the reference scanning parameters is independent of the existing scanning protocol under any mode, and the scanning parameters to be adjusted in the rest scanning protocols to be adjusted can be conveniently adjusted according to the reference scanning parameters in the constructed reference scanning protocol.
An optional technical solution, the method may further include: any scanning protocol in each mode is used as a reference scanning protocol.
When any scanning protocol in each mode is used as the reference scanning protocol, the adjustment process of the scanning parameters may be: illustratively, as shown in fig. 3b, the scan protocol G is used as a reference scan protocol, and the values of the corresponding reference scan parameters in the scan protocol G are modified according to the values of the scan parameters selected by the user in advance and/or the values of the scan parameters automatically generated by the system. And further, the corresponding scanning protocol to be adjusted, namely the numerical value of the scanning parameter to be adjusted in the scanning protocol H, is adjusted in real time according to the numerical value of the reference scanning parameter in the modified scanning protocol G, so that the consistency of the scanning protocol in each mode is realized.
As shown in fig. 3c, the scan protocol J may be used as a reference scan protocol, and the numerical value of the reference scan parameter in the modified scan protocol J may be transferred to a preset virtual scan protocol, i.e., scan protocol I; at this time, the scan protocol I adjusts the corresponding scan protocol to be adjusted, i.e. the value of the scan parameter to be adjusted in the scan protocol K, in real time according to the received value of the scan parameter.
The specific application of the scanning parameter adjustment method in the above technical solutions may be: for example, taking a PET-MR device as an example, since the imaging principle of MR is to directly acquire and reconstruct data of a target anatomical location, and data to be reconstructed cannot be selected again later, a scan protocol of the MR device may be used as a reference scan protocol, a scan protocol of the PET device may be used as a scan protocol to be adjusted, and the above scan parameter adjustment method is adopted to adjust scan parameters in the PET device, so that scan parameters related to a temporal layer and/or a spatial layer in the MR device and the PET device, that is, scan parameters that may affect registration accuracy remain consistent, for example, slice positions and layer thicknesses related to anatomical locations, start time per frame during dynamic acquisition related to a dynamic period, acquisition duration per frame, and so on.
It will be appreciated that the scan parameters at the spatial level will directly influence whether the multi-modal images are located at the same anatomical location or not; the scan parameters at the time level will directly influence whether the multi-modal images are in the same physiological process state, for example, the acquisition of liver data may involve the whole process of flowing the contrast agent into the liver, the contrast agent reaching a steady state in the liver, and the contrast agent metabolizing away, i.e. the data acquisition at the third stage or even the fourth stage may be involved. The starting points in time at which the MR device and the PET device start acquisition at each session should then be the same, i.e. the acquisition points in time of the multi-session item should be aligned. The multi-mode liver image with the scanning parameters adjusted can present metabolic information in the PET image and structural information with different contrasts in the MR image on the same anatomical position; meanwhile, the metabolism state of the contrast agent in the PET image and the distribution state of the contrast agent in the MR image in the liver can be presented during the same period of acquisition, and the multi-angle multi-layer medical information is more beneficial to the analysis and diagnosis of doctors.
Example III
Fig. 4 is a block diagram of a scan parameter adjusting apparatus according to a third embodiment of the present invention, where the apparatus is configured to execute the scan parameter adjusting method according to any of the above embodiments. The device and the scanning parameter adjusting method of each embodiment belong to the same invention conception, and the details of the scanning parameter adjusting device embodiment are not described in detail, and reference can be made to the scanning parameter adjusting method embodiment. Referring to fig. 4, the apparatus may specifically include: a scan protocol acquisition module 310 and a scan parameter adjustment module 320.
The scanning protocol acquisition module 310 is configured to acquire a scanning protocol under each mode in the multi-mode imaging system, where the scanning protocol includes a reference scanning protocol and at least one scanning protocol to be adjusted;
the scan parameter adjustment module 320 is configured to adjust at least one scan parameter to be adjusted in the scan protocol to be adjusted according to a reference scan parameter in the reference scan protocol, where the reference scan parameter and the scan parameter to be adjusted have the same attribute information.
Optionally, the apparatus may further include:
and the reference scanning protocol determining module is used for constructing a reference scanning protocol according to the reference scanning parameters, wherein the reference scanning parameters comprise preset time-related scanning parameters and preset space-related scanning parameters.
Optionally, the apparatus may further include:
and the reference scanning protocol determining module is used for taking any scanning protocol in each mode as the reference scanning protocol.
Optionally, the apparatus may further include:
the parameter corresponding relation establishing module is used for establishing parameter corresponding relation between each reference scanning parameter and each scanning parameter to be adjusted according to the attribute information of the reference scanning parameter and the scanning parameter to be adjusted;
correspondingly, the scan parameter adjustment module 320 is specifically configured to adjust the scan parameter to be adjusted in at least one scan protocol to be adjusted according to the reference scan parameter in the reference scan protocol and the parameter correspondence established by the parameter correspondence establishment module.
Optionally, the apparatus may further include:
the reference scanning parameter determining module is used for determining reference scanning parameters in a reference scanning protocol according to a region to be scanned of the target scanning object; the reference scan parameters include a start slice position and an end slice position.
Optionally, the preset time-dependent scan parameters in the reference scan protocol determination module may include a start time of acquisition and/or a duration of acquisition per frame.
Optionally, the preset spatially dependent scan parameters in the reference scan protocol determination module may include at least one of slice position, layer thickness, layer orientation, layer spacing, and resolution.
According to the scanning parameter adjusting device provided by the fourth embodiment of the invention, a reference scanning protocol and a scanning protocol to be adjusted are obtained through the scanning protocol obtaining module; furthermore, the module is adjusted according to the scanning parameters so as to keep consistency among the scanning parameters with the same attribute information. The device can ensure that the multi-mode images after the scanning parameter adjustment are consistent in a time level to realize accurate registration under the same physiological state, and consistent in a space level to realize accurate registration of the same anatomical position.
The scanning parameter adjusting device provided by the embodiment of the invention can execute the scanning parameter adjusting method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the executing method.
It should be noted that, in the embodiment of the scanning parameter adjusting apparatus, each unit and module included are only divided according to the functional logic, but not limited to the above-mentioned division, so long as the corresponding functions can be implemented; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present invention.
Example IV
Fig. 5 is a schematic structural diagram of an apparatus according to a fourth embodiment of the present invention, and as shown in fig. 5, the apparatus includes a memory 410, a processor 420, an input device 430 and an output device 440. The number of processors 420 in the device may be one or more, one processor 420 being taken as an example in fig. 5; the memory 410, processor 420, input means 430 and output means 440 in the device may be connected by a bus or other means, in fig. 5 by way of example by a bus 450.
The memory 410 is a computer readable storage medium, and may be used to store a software program, a computer executable program, and modules, such as program instructions/modules corresponding to the scan parameter adjustment method in the embodiment of the present invention (for example, the scan protocol acquisition module 310 and the scan parameter adjustment module 320 in the scan parameter adjustment device). The processor 420 executes various functional applications of the apparatus and data processing by executing software programs, instructions and modules stored in the memory 410, i.e., implements the scan parameter adjustment method described above.
The input device 430 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the device. The output 440 may include a display device such as a display screen.
Example five
A fifth embodiment of the present invention provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a scan parameter adjustment method, the method may include:
acquiring a scanning protocol under each mode in a multi-mode imaging system, wherein the scanning protocol comprises a reference scanning protocol and at least one scanning protocol to be adjusted;
and adjusting the scanning parameters to be adjusted in at least one scanning protocol to be adjusted according to the reference scanning parameters in the reference scanning protocol, wherein the reference scanning parameters and the scanning parameters to be adjusted have the same attribute information.
Of course, the storage medium containing the computer executable instructions provided in the embodiments of the present invention is not limited to the above-described method operations, and may also perform the related operations in the scan parameter adjustment method provided in any embodiment of the present invention.
From the above description of embodiments, it will be clear to a person skilled in the art that the present invention may be implemented by means of software and necessary general purpose hardware, but of course also by means of hardware, although in many cases the former is a preferred embodiment. In light of such understanding, the technical solution of the present invention may be embodied essentially or in part in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), FLASH Memory (FLASH), hard disk, optical disk, etc., of a computer, which may be a personal computer, a server, a network device, etc., and which includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in the embodiments of the present invention.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. 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, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (9)
1. A scan parameter adjustment method, comprising:
acquiring a scanning protocol under each mode in an integrated multi-mode imaging system, wherein the scanning protocol comprises a reference scanning protocol and at least one scanning protocol to be adjusted;
adjusting the scanning parameters to be adjusted in the at least one scanning protocol to be adjusted according to the reference scanning parameters in the reference scanning protocol, wherein the reference scanning parameters and the scanning parameters to be adjusted have the same attribute information;
according to the attribute information of the reference scanning parameters and the scanning parameters to be adjusted, establishing parameter corresponding relations between the reference scanning parameters and the scanning parameters to be adjusted;
correspondingly, adjusting the scan parameters to be adjusted of the at least one scan protocol to be adjusted according to the reference scan parameters in the reference scan protocol includes:
and adjusting the scanning parameters to be adjusted in the at least one scanning protocol to be adjusted according to the reference scanning parameters in the reference scanning protocol and the corresponding relation of the parameters.
2. The method according to claim 1, wherein the method further comprises:
and constructing the reference scanning protocol according to the reference scanning parameters, wherein the reference scanning parameters comprise preset time-related scanning parameters and preset space-related scanning parameters.
3. The method according to claim 1, wherein the method further comprises:
any scanning protocol in each mode is used as a reference scanning protocol.
4. The method according to claim 1, wherein the method further comprises:
determining the reference scanning parameters in the reference scanning protocol according to the region to be scanned of the target scanning object; wherein the reference scan parameters include a start slice position and an end slice position.
5. The method according to claim 2, wherein the preset time-dependent scan parameters comprise a start of acquisition time and/or a duration of acquisition per frame.
6. The method of claim 2, wherein the predetermined spatially dependent scan parameters include at least one of slice position, layer thickness, layer orientation, layer spacing, and resolution.
7. A scanning parameter adjusting apparatus, comprising:
the system comprises a scanning protocol acquisition module, a scanning module and a scanning module, wherein the scanning protocol acquisition module is used for acquiring scanning protocols under all modes in an integrated multi-mode imaging system, and the scanning protocols comprise a reference scanning protocol and at least one scanning protocol to be adjusted;
the scanning parameter adjustment module is used for adjusting the scanning parameters to be adjusted in the at least one scanning protocol to be adjusted according to the reference scanning parameters in the reference scanning protocol, wherein the reference scanning parameters and the scanning parameters to be adjusted have the same attribute information;
wherein, the scanning parameter adjustment module further includes:
the parameter corresponding relation establishing module is used for establishing parameter corresponding relation between each reference scanning parameter and each scanning parameter to be adjusted according to the attribute information of the reference scanning parameter and the scanning parameter to be adjusted;
correspondingly, the scanning parameter adjustment module is specifically configured to adjust the scanning parameter to be adjusted in at least one scanning protocol to be adjusted according to the reference scanning parameter in the reference scanning protocol and the parameter correspondence established by the parameter correspondence establishment module.
8. An apparatus, the apparatus comprising:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, causes the one or more processors to implement the scan parameter adjustment method of any one of claims 1-6.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the scanning parameter adjustment method according to any one of claims 1-6.
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| CN111904379B (en) * | 2020-07-13 | 2024-04-12 | 上海联影医疗科技股份有限公司 | Scanning method and device for multi-mode medical equipment |
| CN111772655A (en) * | 2020-08-03 | 2020-10-16 | 上海联影医疗科技有限公司 | Medical imaging equipment parameter determination method, imaging method and device |
| CN112862869A (en) * | 2020-12-31 | 2021-05-28 | 上海联影智能医疗科技有限公司 | Image scanning processing method, imaging scanning device, electronic device, and readable medium |
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