CN112957059A - Medical imaging method, apparatus, device, system and storage medium - Google Patents
Medical imaging method, apparatus, device, system and storage medium Download PDFInfo
- Publication number
- CN112957059A CN112957059A CN202110127570.7A CN202110127570A CN112957059A CN 112957059 A CN112957059 A CN 112957059A CN 202110127570 A CN202110127570 A CN 202110127570A CN 112957059 A CN112957059 A CN 112957059A
- Authority
- CN
- China
- Prior art keywords
- ray source
- detector
- scanned
- scanning
- motion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
-
- 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
- A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
-
- 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
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4452—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being able to move relative to each other
-
- 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
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4476—Constructional features of apparatus for radiation diagnosis related to motor-assisted motion of the source unit
Abstract
The present application relates to a medical imaging method, apparatus, device, system and storage medium. The method is applied to a medical imaging system, wherein the medical imaging system comprises an X-ray source, a detector and a computer device; the method comprises the following steps: in the process of scanning a part to be scanned, controlling the detector and the X-ray source to move relatively according to the acquired motion type, and acquiring projection data on the detector in the process of the relative motion; and the motion type comprises translational motion between the X-ray source and the detector and rotational motion of the X-ray source, and the projection data is subjected to image reconstruction to obtain a medical image of the part to be scanned. The method can improve the spatial resolution of the obtained medical image.
Description
Technical Field
The present application relates to the field of device control technologies, and in particular, to a medical imaging method, apparatus, device, system, and storage medium.
Background
With the continuous development of medical imaging technology, a Digital Radiography (DR) technology appears, in which an emitted radiation source can be directly converted into a digital image, the imaging speed is high, and the radiation dose to a patient is relatively low, so that more and more hospitals adopt the technology to examine the patient. However, in the process of performing an examination by using the DR technique, since a tissue of some examined regions overlaps with other tissues, which may cause image artifacts, in order to reduce the generation of such artifacts, a Digital Tomosynthesis (DTS) technique is now increasingly used for tomography in the DR technique.
During the tomography process by adopting the DTS technology, the bulb tube of the DR equipment can be rotated, rays emitted by the bulb tube are collected by using a flat panel detector during the movement of the bulb tube, projection data are obtained, and then image reconstruction can be performed based on the projection data to obtain a tomography image.
However, the above-described technique has a problem that spatial resolution of an obtained tomographic image is not high when tomographic imaging is performed.
Disclosure of Invention
In view of the above, it is necessary to provide a medical imaging method, apparatus, device, system, and storage medium capable of improving the spatial resolution of a resulting tomographic image in view of the above technical problems.
In a first aspect, a medical imaging method is provided, which is applied to a medical imaging system, where the medical imaging system includes an X-ray source, a detector, and a computer device; the method comprises the following steps:
in the process of scanning a part to be scanned, controlling the detector and the X-ray source to move relatively according to the acquired motion type, and acquiring projection data on the detector in the process of the relative motion; the motion types comprise translational motion between the X-ray source and the detector and rotational motion of the X-ray source;
and carrying out image reconstruction on the projection data to obtain the medical image of the part to be scanned.
In one embodiment, the method further includes:
acquiring an identifier of a part to be scanned;
and acquiring a scanning protocol corresponding to the identifier of the part to be scanned in a preset database according to the identifier of the part to be scanned, wherein the database comprises the corresponding relation between the identifier of the part to be scanned and the scanning protocol, and the scanning protocol comprises the motion type.
In one embodiment, the scan protocol further includes a detection distance between the X-ray source and the detector, a swing angle of the X-ray source, and a rotation center of the X-ray source.
In one embodiment, the controlling the relative movement between the detector and the X-ray source according to the movement type includes:
acquiring the moving direction of the X-ray source;
calculating the moving distance of the X-ray source according to the detection distance and the swing angle;
and controlling the detector to perform translational motion in the direction opposite to the moving direction of the X-ray source according to the moving distance and the moving direction of the X-ray source.
In one embodiment, the method further includes:
acquiring a preset scanning requirement;
determining a scanning type corresponding to the part to be scanned according to the scanning requirement; the scanning type is used for representing the posture of the part to be scanned during scanning.
In one embodiment, the method further includes:
determining the relative movement direction when the X-ray source and the detector perform relative movement according to the scanning type; the relative movement direction includes up-down relative movement, left-right relative movement or front-back relative movement.
In a second aspect, a medical imaging apparatus is provided, which is applied to a medical imaging system, the medical imaging system includes an X-ray source, a detector and a computer device; the device includes:
the motion control and data acquisition module is used for controlling the detector and the X-ray source to move relatively according to the acquired motion type in the process of scanning a part to be scanned and acquiring projection data on the detector in the process of the relative motion; the motion types comprise translational motion between the X-ray source and the detector and rotational motion of the X-ray source;
and the image reconstruction module is used for carrying out image reconstruction on the projection data to obtain the medical image of the part to be scanned.
In a third aspect, a computer device is provided, comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
in the process of scanning a part to be scanned, controlling the detector and the X-ray source to move relatively according to the acquired motion type, and acquiring projection data on the detector in the process of the relative motion; the motion types comprise translational motion between the X-ray source and the detector and rotational motion of the X-ray source;
and carrying out image reconstruction on the projection data to obtain the medical image of the part to be scanned.
In a fourth aspect, a medical imaging system is provided, comprising an X-ray source and a detector and the computer device as described above.
In a fifth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of:
in the process of scanning a part to be scanned, controlling the detector and the X-ray source to move relatively according to the acquired motion type, and acquiring projection data on the detector in the process of the relative motion; the motion types comprise translational motion between the X-ray source and the detector and rotational motion of the X-ray source;
and carrying out image reconstruction on the projection data to obtain the medical image of the part to be scanned.
The medical imaging method, the device, the equipment, the system and the storage medium are applied to a medical imaging system, the system comprises an X-ray source, a detector and computer equipment, the detector and the X-ray source are controlled to move relatively according to the obtained motion type in the process of scanning a part to be scanned, projection data on the detector are obtained in the relative motion process, and image reconstruction is carried out on the projection data to obtain a medical image of the part to be scanned; wherein the motion types include translational motion between the X-ray source and the detector and rotational motion of the X-ray source. In the method, the detector and the X-ray source can be controlled to move relatively in the scanning process of the part to be scanned, namely, the detector can also move relatively in the scanning process, so that the problem that the spatial resolution of the image is reduced due to the movement of the X-ray source can be relatively solved, namely, more data are acquired by the detector in the same time and the same space, the spatial resolution of the medical image imaged by the data acquired by the detector is higher, and the spatial resolution of the acquired medical image can be improved. Furthermore, the detector can also perform relative motion in the scanning process, so that the effective imaging area of the part to be scanned can be increased, namely the complete interval and volume of data can be greatly increased, and the quality of the reconstructed medical image can be enhanced.
Drawings
FIG. 1 is a block diagram of a medical imaging system in one embodiment;
FIG. 2is a schematic flow chart diagram of a medical imaging method in one embodiment;
FIG. 3 is a schematic flow chart diagram of a medical imaging method in another embodiment;
FIG. 4 is a diagram of another embodiment of an X-ray source aligned with a portion to be scanned for scanning;
FIG. 5 is an exemplary illustration of data acquired during operation of a detector relative to an X-ray source in another embodiment;
FIG. 6 is an exemplary illustration of data acquired during operation of a detector relative to an X-ray source in another embodiment;
FIG. 7 is a schematic flow chart diagram of a medical imaging method in another embodiment;
FIG. 8 is a schematic flow chart diagram of a medical imaging method in another embodiment;
FIG. 9 is a view showing an example of a standing position and a supine position in another embodiment;
FIG. 10 is a block diagram of a medical imaging apparatus according to an embodiment;
FIG. 11 is a diagram illustrating an internal structure of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The medical imaging method provided by the embodiment of the application, as shown in fig. 1, can be applied to a medical imaging system, which includes an X-ray source and a detector, and a computer device. The X-ray source is used for emitting X-rays to a scanning object, the scanning object can be arranged between the X-ray source and the detector, and after the X-ray source emits the X-rays to the scanning object, the detector can receive the data of the X-ray source penetrating through a human body. Meanwhile, the detector transmits the received data of the X-ray source to the computer equipment, so that the computer equipment can perform processes such as data processing, image reconstruction, medical imaging and the like on the transmitted data.
Further, the X-ray source may be an array X-ray source or a single X-ray source; in the case of an array X-ray source, which may include a plurality of X-ray sources with different projection angles, the detector may be formed with imaging regions corresponding to the X-ray sources. The detector may be a flat panel detector, or may be other types of detectors, and is not limited herein.
The executing subject in the embodiment of the present application may be a medical imaging system, a computer device, or a medical imaging apparatus, and the following description will be given with reference to the computer device as the executing subject.
In one embodiment, a medical imaging method is provided, which relates to a specific process of controlling the relative motion of a detector and an X-ray source and obtaining a medical image through data acquired during the relative motion. As shown in fig. 2, the method may include the steps of:
s202, in the process of scanning a part to be scanned, controlling the detector and the X-ray source to move relatively according to the obtained motion type, and obtaining projection data on the detector in the process of the relative movement, wherein the motion type comprises translational motion between the X-ray source and the detector and rotational motion of the X-ray source.
The part to be scanned may be the whole body, the chest, the head, or the legs of the scanning object, among others. Before scanning, a scanning protocol corresponding to a part to be scanned can be acquired, wherein the scanning protocol comprises a motion type between the X-ray source and the detector, and the motion type comprises a translation motion between the X-ray source and the detector and a rotation motion of the X-ray source. The movement type between the X-ray source and the detector is embodied, so that the relative movement process of the detector and the X-ray source can be conveniently refined, and the movement processes of the detector and the X-ray source are more accurate.
In addition, the scanning protocol corresponding to the portion to be scanned is a protocol corresponding to the portion to be scanned, and the scanning protocols corresponding to different portions to be scanned may be the same or different.
When acquiring the scan protocol of the portion to be scanned, the scan protocol may be manually selected in advance by a doctor or a technician, so that the computer device can acquire the scan protocol corresponding to the portion to be scanned. Of course, the corresponding relationship between the identifier of the to-be-scanned portion and the scanning protocol may also be pre-established, so that when the scanning protocol corresponding to the to-be-scanned portion needs to be obtained, the scanning protocol corresponding to the identifier of the to-be-scanned portion may be obtained in the established corresponding relationship through the pre-obtained identifier of the to-be-scanned portion, that is, the scanning protocol corresponding to the to-be-scanned portion is obtained. Of course, the present invention may also be obtained in other ways, and the present embodiment is not particularly limited.
In this step, after the scanning protocol corresponding to the portion to be scanned is obtained, the portion to be scanned may be scanned based on the scanning protocol. During the scanning process, the X-ray source and the detector can be controlled to move by the motion type in the scanning protocol, and both are relative motion, that is, here, when the X-ray source is controlled to move relative to the part to be scanned, the detector can also be controlled to move relative to the X-ray source. In the relative movement process, the detector mainly makes translational movement relative to the X-ray source, and the X-ray source can also make rotational movement relative to the detector while making translational movement.
In the relative movement process of the detector and the X-ray source, the detector can continuously receive projection data on the detector after the X-ray emitted by the X-ray source passes through a part to be scanned, and the projection data are transmitted to computer equipment, so that the computer equipment can obtain the projection data on the detector.
And S204, carrying out image reconstruction on the projection data to obtain a medical image of the part to be scanned.
In this step, after obtaining the projection data of the portion to be scanned, the projection data may be reconstructed by using a related image reconstruction algorithm, where the image reconstruction algorithm may be a filtered back projection algorithm (FBP), an algebraic reconstruction Algorithm (ART), a Local RA, a modified algebraic reconstruction algorithm (MART), or the like. Through the image reconstruction processing, a reconstructed image of the part to be scanned, that is, a medical image of the part to be scanned, can be obtained.
In this embodiment, since the detector and the X-ray source move relatively together, compared to the case where only the X-ray source moves, the projection data detected by the detector is relatively more complete and more, that is, more data detected by the detector in the same time space, and the spatial resolution of the reconstructed image obtained by image reconstruction using these projection data is higher; meanwhile, when the image is reconstructed by adopting more complete data, the quality of the reconstructed image is higher.
The medical imaging method is applied to a medical imaging system, the system comprises an X-ray source, a detector and computer equipment, and the method mainly comprises the steps of controlling the detector and the X-ray source to move relatively according to the obtained motion type in the process of scanning a part to be scanned, obtaining projection data on the detector in the relative motion process, and carrying out image reconstruction on the projection data to obtain a medical image of the part to be scanned; wherein the motion types include translational motion between the X-ray source and the detector and rotational motion of the X-ray source. In the method, the detector and the X-ray source can be controlled to move relatively in the scanning process of the part to be scanned, namely, the detector can also move relatively in the scanning process, so that the problem that the spatial resolution of the image is reduced due to the movement of the X-ray source can be relatively solved, namely, more data are acquired by the detector in the same time and the same space, the spatial resolution of the medical image imaged by the data acquired by the detector is higher, and the spatial resolution of the acquired medical image can be improved. Furthermore, the detector can also perform relative motion in the scanning process, so that the effective imaging area of the part to be scanned can be increased, namely the complete interval and volume of data can be greatly increased, and the quality of the reconstructed medical image can be enhanced.
In another embodiment, optionally, the obtained scan protocol further includes a detection distance between the X-ray source and the detector, a swing angle of the X-ray source, and a rotation center of the X-ray source. The detection distance refers to the distance between the X-ray source and the detector, and may be referred to as SID, and includes the distance between the X-ray source and the portion to be scanned and the thickness of the portion to be scanned. The swing angle of the X-ray source here refers to the angular size by which the X-ray source can swing, and illustratively, the swing angle of the X-ray source here can be 20 °, 30 °, and so on, with respect to a reference position, and the rotation center of the X-ray source refers to the center of rotation of the X-ray source. The content in the scanning protocol is refined, so that the relative motion of the X-ray source and the detector can be controlled more accurately, the accurate execution of the motion is ensured, and more accurate projection data is obtained.
The types of motion mentioned above with respect to the relative motion between the X-ray source and the detector include translational motion, as will be described in more detail below.
In another embodiment, another medical imaging method is provided, which relates to a specific process of how to control the relative motion of the detector and the X-ray source according to the translational motion type. On the basis of the above embodiment, as shown in fig. 3, the above S202 may include the following steps:
s302, the moving direction of the X-ray source is obtained.
In this step, when the X-ray source is used to start scanning the portion to be scanned, the X-ray source moves from the starting point of the pivot angle to the ending point after a period of time, and the portion to be scanned is always treated by the X-ray source during the moving process, as shown in fig. 4, so that the moving direction of the X-ray source can be obtained during the moving scanning process.
It should be noted that fig. 4 is only an example, and does not affect the essence of the embodiments of the present application.
And S304, calculating the moving distance of the X-ray source according to the detection distance and the swing angle.
In this step, with continued reference to fig. 4, the detection distance refers to the distance between the X-ray source and the detector, and the distance between the X-ray source and the portion to be scanned and the thickness of the portion to be scanned can be obtained in advance. The detection distance, the thickness of the part to be scanned, the swing angle of the X-ray source, etc. can be obtained in advance before the part to be scanned is scanned.
Then, the moving distance of the X-ray source can be calculated by the swing angle of the X-ray source and the distance between the X-ray source and the detector, or the distance between the X-ray source and the part to be scanned and the thickness of the part to be scanned, or the distance from the X-ray source to the center. The center here may be the center of the part to be scanned or the center of rotation.
And S306, controlling the detector to perform translational motion in the direction opposite to the moving direction of the X-ray source according to the moving distance and the moving direction of the X-ray source.
Specifically, after the moving distance and the moving direction of the X-ray source are obtained, the detector can be controlled to move and the detector and the X-ray source can be controlled to move relatively by the same moving distance.
Meanwhile, the moving direction of the detector can be the translation direction opposite to the X-ray source, so that when the X-ray source and the detector move in opposite directions, the part to be scanned can be focused more, and the detector can obtain more and more complete data.
In the medical imaging method in this embodiment, if the motion type of the X-ray source and the detector is translational motion, the moving distance of the X-ray source and the moving direction of the X-ray source may be obtained through detection distance and swing angle calculation, and the detector is controlled to perform translational motion in the opposite direction through the moving direction and the moving distance of the X-ray source. In this embodiment, because the detector translational motion can be controlled through the moving direction and the moving distance of the X-ray source, the moving direction and the moving distance of the detector are more accurate, so that the accuracy of data obtained by the detector can be ensured, and the accuracy of medical imaging is improved.
After the above description of the specific schemes of the present embodiment, the effects that can be achieved by the present embodiment are further described here.
Further, referring to fig. 5 and fig. 6, the SID of the two images is different, i.e. the distance between the flat panel detector and the X-ray source is different, the SID in fig. 5 is 1300, the SID in fig. 6 is 1800, and other parameters are the same. Here, first, the english parameter in fig. 5 will be explained. Title: trapezoid: SID1300 DisFoc2ISO1200 ProjAngle30 deg. VS Hexagon (Detector Shift): SID1300 DisFoc2ISO1200 ProjAngle30 deg. refers to the Trapezoid, SID1300, source to center of rotation distance 1200, yaw angle30 deg., as compared to the Hexagon (Detector Shift), SID1300, source to center of rotation distance 1200, yaw angle30 deg..
First row: the distance Shift is 543.0781mm, which means the Source drift distance 543.0781 mm;
a second row: the distance Shift is 543.0781mm, which means the Source drift distance 543.0781 mm;
bottom left side: the length of a Focal Plane Line of the Trapezoid at the position of 200 is 262.3794mm, wherein the length of the Focal Plane Line is 262.3794 mm; trapezoid Aera (200)＝68938.7375mm2It means that the area of the focal plane of the trapezoid at the position of 200 is 68938.7375mm2。
Bottom right: hexagon Focal Plane Line (200) ═ mm, means that the Focal Plane Line length of the Hexagon at the 200 position is 307.7246 mm; the Hexagon Longest Line (200) is 394.1612mm, which means that the Longest Line segment length of the Hexagon at the position of 200 is 394.1612 mm; hexagon Aera (200) ═ 73473.2623mm2It means that the area of the focal plane of the hexagon at the position of 200 is 73473.2623mm2. The 200 position may be considered herein as the position of interest for the scan.
At the bottom: the distance Detector Shift 2 group is 26.7949mm, which means that the distance moved from the starting point to the Ground is 26.7949 mm. The distance of movement of the probe is shown here by LA in fig. 6.
For the explanation in fig. 6, reference may be made to the explanation in fig. 5, which is not described herein again, and for the moving distance of the detector in fig. 6, reference is made to LB in fig. 5.
From the above explanation, it can be seen that in fig. 5 and 6, the uppermost side is the position of the X-ray source at different angles, i.e., the projection, the 0-coordinate position of the vertical Y-axis (Y-axis, i.e., vertical axis in the two figures) refers to the position of the flat panel detector, and the LA and LB line segments on the X-axis (X-axis, i.e., horizontal axis in the two figures) refer to the moving distance of the corresponding flat panel detector under the scanning of this X-ray source. The middle hexagonal region is a complete region corresponding to a scanned object when the flat panel detector and the X-ray source of the embodiment perform scanning in a relative motion manner within the scanning angle range, and the middle trapezoidal region is a complete region corresponding to a scanned object within the scanning angle range when only the X-ray source moves and the flat panel detector does not move. As can be seen from the area sizes of the focal planes calculated in fig. 5 and fig. 6, no matter how large the distance SID between the X-ray source and the detector is, the area of the hexagonal region is larger than that of the trapezoid, and the length of the longest line segment of the hexagon at the concerned position is also longer, that is, the flat panel detector always moves more than the complete data obtained when the flat panel detector does not move, so that the medical image obtained by imaging the obtained data is more accurate. It should be noted that fig. 5 and 6 are only examples, and do not affect the essence of the embodiments of the present application.
In another embodiment, another medical imaging method is provided, which relates to a possible implementation of how to acquire a scan protocol corresponding to a portion to be scanned. On the basis of the above embodiment, as shown in fig. 7, the above method may further include the steps of:
s402, acquiring the mark of the part to be scanned.
In this step, when the X-ray source is used to start scanning the portion to be scanned, the identifier of the portion to be scanned may be obtained through manual input by a doctor or other means, where the identifier may be any one or any combination of numbers, letters, or characters.
S404, according to the identification of the part to be scanned, a scanning protocol corresponding to the identification of the part to be scanned is obtained in a preset database, wherein the database comprises the corresponding relation between the identification of the part to be scanned and the scanning protocol.
Wherein the above-mentioned motion type is included in the above-mentioned scanning protocol, that is, the specific relative motion type between the X-ray source and the detector is included.
Specifically, before the scanning protocol is acquired, the identifiers of the plurality of scanning portions and the scanning protocol corresponding to the identifier of each scanning portion may be acquired in advance, and the identifiers of the scanning portions and the corresponding scanning protocols are bound together to establish a corresponding relationship, and the corresponding relationship is stored in the database.
After the corresponding relation is established, the corresponding scanning protocol can be obtained from the database through the identification of the part to be scanned.
According to the medical imaging method, the corresponding scanning protocol can be obtained in the database through the identification of the part to be scanned, so that the scanning protocol can be conveniently and accurately obtained, and the scanning efficiency is improved.
When actually inspecting a scanning object, different imaging postures may be required for the scanning object due to different inspection items, and the corresponding X-ray source and detector have different relative movement directions, which will be described in detail below.
In another embodiment, another medical imaging method is provided, and the embodiment relates to a specific process of determining a scanning type corresponding to a part to be scanned according to scanning requirements. On the basis of the above embodiment, as shown in fig. 8, the method may further include the following steps:
and S502, acquiring a preset scanning requirement.
In this step, the scanning requirement may be a posture requirement of the scanned object/part, such as a standing position requirement, a supine position requirement, and the like, required when the scanned object/part is clinically imaged. The scanning requirement can be preset before scanning, and the computer device can obtain the set scanning requirement during scanning.
S504, determining the scanning type corresponding to the part to be scanned according to the scanning requirement; the scanning type is used for representing the posture of the part to be scanned during scanning.
In this step, after obtaining the scanning requirement, the body position of the scanning object, that is, the scanning type of the part to be scanned, may be determined according to the scanning requirement, where the scanning type may include a standing position, a supine position, and the like. For example, if the scanning requirement is a standing position requirement, the scanning type corresponding to the part to be scanned is a standing position.
Further, after the scanning type is determined, the scanning object can be posed according to the scanning type, and then, optionally, the relative movement direction when the relative movement is performed between the X-ray source and the detector can be determined according to the scanning type; the relative movement direction includes up-down relative movement, left-right relative movement or front-back relative movement.
Referring to fig. 9, two examples are shown, the left side is a standing position, and the X-ray source and the detector move up and down relatively; the right side is in a supine position, and the X-ray source and the detector move left and right relatively; of course, the scanning type is not limited to these two types, and is only an example here. In addition, fig. 9 is only an example and does not affect the essence of the embodiments of the present application.
The medical imaging method of the embodiment can determine the scanning type corresponding to the part to be scanned according to the scanning requirement by acquiring the preset scanning requirement, wherein the scanning type represents the posture of the part to be scanned during scanning. In the embodiment, the scanning type of the part to be scanned can be determined according to the scanning requirement, so that the posture of the part to be scanned during scanning is more accurate, the obtained data is more accurate, and the accuracy of medical imaging is improved. Furthermore, the relative movement direction of the X-ray source and the detector can be determined through the scanning type, so that the determined movement direction is more suitable for the actual situation, and the obtained data is more suitable for the real situation.
It should be understood that although the steps in the flowcharts of fig. 2, 3, 7, 8 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2, 3, 7, and 8 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least some of the other steps.
In one embodiment, as shown in fig. 10, there is provided a medical imaging apparatus comprising: a motion control and data acquisition module 11 and an image reconstruction module 12, wherein:
a motion control and data acquisition module 11, configured to control the detector and the X-ray source to perform relative motion according to an acquired motion type during a scanning process of a to-be-scanned portion, and acquire projection data on the detector during the relative motion; the motion types comprise translational motion between the X-ray source and the detector and rotational motion of the X-ray source;
and an image reconstruction module 12, configured to perform image reconstruction on the projection data to obtain a medical image of the to-be-scanned portion.
For specific definitions of the medical imaging apparatus, reference may be made to the above definitions of the medical imaging method, which are not further described herein.
In another embodiment, the scan protocol further includes a detection distance between the X-ray source and the detector, a swing angle of the X-ray source, and a rotation center of the X-ray source.
In another embodiment, another medical imaging apparatus is provided, and on the basis of the above embodiment, the motion control and data acquisition module 11 may include a movement direction acquisition unit, a movement distance calculation unit, and a translational motion control unit, wherein:
a moving direction acquiring unit for acquiring a moving direction of the X-ray source;
a moving distance calculating unit for calculating the moving distance of the X-ray source according to the detection distance and the swing angle;
and a translational motion control unit for controlling the detector to perform translational motion in a direction opposite to the moving direction of the X-ray source according to the moving distance and the moving direction of the X-ray source.
In another embodiment, another medical imaging apparatus is provided, which may further include a requirement acquisition module and a scan type determination module on the basis of the above embodiment, wherein:
the requirement acquisition module is used for acquiring a preset scanning requirement;
a scanning type determining module, configured to determine a scanning type corresponding to the portion to be scanned according to the scanning requirement; the scanning type is used for representing the posture of the part to be scanned during scanning.
Optionally, the apparatus may further include a motion determination module, configured to determine a relative motion direction when the X-ray source and the detector perform relative motion according to the scan type; the relative movement direction includes up-down relative movement, left-right relative movement or front-back relative movement.
In another embodiment, another medical imaging apparatus is provided, which may further include an identification acquisition module and a protocol determination module on the basis of the above embodiment, wherein:
the identification acquisition module is used for acquiring the identification of the part to be scanned;
and a protocol determining module, configured to obtain, from a preset database, a scanning protocol corresponding to the identifier of the to-be-scanned portion according to the identifier of the to-be-scanned portion, where the database includes a correspondence between the identifier of the to-be-scanned portion and the scanning protocol, and the scanning protocol includes the motion type.
For specific definitions of the medical imaging apparatus, reference may be made to the above definitions of the medical imaging method, which are not further described herein.
The various modules in the medical imaging apparatus described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 11. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a method of medical imaging. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 11 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
in the process of scanning a part to be scanned, controlling the detector and the X-ray source to move relatively according to the acquired motion type, and acquiring projection data on the detector in the process of the relative motion; the motion types comprise translational motion between the X-ray source and the detector and rotational motion of the X-ray source; and carrying out image reconstruction on the projection data to obtain the medical image of the part to be scanned.
In one embodiment, the scan protocol further includes a detection distance between the X-ray source and the detector, a swing angle of the X-ray source, and a rotation center of the X-ray source.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
acquiring the moving direction of the X-ray source; calculating the moving distance of the X-ray source according to the detection distance and the swing angle; and controlling the detector to perform translational motion in the direction opposite to the moving direction of the X-ray source according to the moving distance and the moving direction of the X-ray source.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
acquiring a preset scanning requirement; determining a scanning type corresponding to the part to be scanned according to the scanning requirement; the scanning type is used for representing the posture of the part to be scanned during scanning.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
determining the relative movement direction when the X-ray source and the detector perform relative movement according to the scanning type; the relative movement direction includes up-down relative movement, left-right relative movement or front-back relative movement.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
acquiring an identifier of a part to be scanned; and acquiring a scanning protocol corresponding to the identifier of the part to be scanned in a preset database according to the identifier of the part to be scanned, wherein the database comprises the corresponding relation between the identifier of the part to be scanned and the scanning protocol, and the scanning protocol comprises the motion type.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
in the process of scanning a part to be scanned, controlling the detector and the X-ray source to move relatively according to the acquired motion type, and acquiring projection data on the detector in the process of the relative motion; the motion types comprise translational motion between the X-ray source and the detector and rotational motion of the X-ray source; and carrying out image reconstruction on the projection data to obtain the medical image of the part to be scanned.
In one embodiment, the scan protocol further includes a detection distance between the X-ray source and the detector, a swing angle of the X-ray source, and a rotation center of the X-ray source.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring the moving direction of the X-ray source; calculating the moving distance of the X-ray source according to the detection distance and the swing angle; and controlling the detector to perform translational motion in the direction opposite to the moving direction of the X-ray source according to the moving distance and the moving direction of the X-ray source.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring a preset scanning requirement; determining a scanning type corresponding to the part to be scanned according to the scanning requirement; the scanning type is used for representing the posture of the part to be scanned during scanning.
In one embodiment, the computer program when executed by the processor further performs the steps of:
determining the relative movement direction when the X-ray source and the detector perform relative movement according to the scanning type; the relative movement direction includes up-down relative movement, left-right relative movement or front-back relative movement.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
acquiring an identifier of a part to be scanned; and acquiring a scanning protocol corresponding to the identifier of the part to be scanned in a preset database according to the identifier of the part to be scanned, wherein the database comprises the corresponding relation between the identifier of the part to be scanned and the scanning protocol, and the scanning protocol comprises the motion type.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A medical imaging method is characterized by being applied to a medical imaging system, wherein the medical imaging system comprises an X-ray source, a detector and a computer device; the method comprises the following steps:
in the process of scanning a part to be scanned, controlling the detector and the X-ray source to move relatively according to the acquired motion type, and acquiring projection data on the detector in the process of the relative motion; the motion types include translational motion between the X-ray source and the detector and rotational motion of the X-ray source;
and carrying out image reconstruction on the projection data to obtain a medical image of the part to be scanned.
2. The method of claim 1, further comprising:
acquiring an identifier of a part to be scanned;
and acquiring a scanning protocol corresponding to the identifier of the part to be scanned in a preset database according to the identifier of the part to be scanned, wherein the database comprises the corresponding relation between the identifier of the part to be scanned and the scanning protocol, and the scanning protocol comprises the motion type.
3. The method of claim 2, further comprising a detection distance between the X-ray source and the detector, a tilt angle of the X-ray source, and a center of rotation of the X-ray source in the scan protocol.
4. The method of claim 3, wherein said controlling the relative motion of the detector and the X-ray source according to the motion type comprises:
acquiring the moving direction of the X-ray source;
calculating the moving distance of the X-ray source according to the detection distance and the swing angle;
and controlling the detector to perform translational motion in the direction opposite to the moving direction of the X-ray source according to the moving distance and the moving direction of the X-ray source.
5. The method according to any one of claims 1-4, further comprising:
acquiring a preset scanning requirement;
determining a scanning type corresponding to the part to be scanned according to the scanning requirement; the scanning type is used for representing the posture of the part to be scanned during scanning.
6. The method of claim 5, further comprising:
determining a relative movement direction when the X-ray source and the detector perform relative movement according to the scanning type; the relative movement direction includes up-down relative movement, left-right relative movement or front-back relative movement.
7. A medical imaging apparatus is characterized by being applied to a medical imaging system, wherein the medical imaging system comprises an X-ray source, a detector and a computer device; the device comprises:
the motion control and data acquisition module is used for controlling the detector and the X-ray source to move relatively according to the acquired motion type in the process of scanning a part to be scanned and acquiring projection data on the detector in the process of the relative motion; the motion types include translational motion between the X-ray source and the detector and rotational motion of the X-ray source;
and the image reconstruction module is used for carrying out image reconstruction on the projection data to obtain the medical image of the part to be scanned.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 6.
9. A medical imaging system comprising an X-ray source and a detector and the computer device of claim 8.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110127570.7A CN112957059A (en) | 2021-01-29 | 2021-01-29 | Medical imaging method, apparatus, device, system and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110127570.7A CN112957059A (en) | 2021-01-29 | 2021-01-29 | Medical imaging method, apparatus, device, system and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112957059A true CN112957059A (en) | 2021-06-15 |
Family
ID=76273478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110127570.7A Pending CN112957059A (en) | 2021-01-29 | 2021-01-29 | Medical imaging method, apparatus, device, system and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112957059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022262871A1 (en) * | 2021-06-18 | 2022-12-22 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for medical imaging |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102138803A (en) * | 2009-12-22 | 2011-08-03 | 富士胶片株式会社 | Radiation imaging system and assist apparatus for the same |
| CN106419947A (en) * | 2015-08-04 | 2017-02-22 | 通用电气公司 | System and method for tomosynthesis image acquisition |
| CN107423538A (en) * | 2016-02-16 | 2017-12-01 | 西门子保健有限责任公司 | Medical examination system |
| CN111493917A (en) * | 2020-04-23 | 2020-08-07 | 上海联影医疗科技有限公司 | Image scanning protocol interaction device |
| CN111772652A (en) * | 2020-07-13 | 2020-10-16 | 上海逸动医学科技有限公司 | Three-dimensional image detection system, device, imaging method and lung detection device |
| CN212281376U (en) * | 2020-04-13 | 2021-01-05 | 山东新华医疗器械股份有限公司 | X-ray machine |
-
2021
- 2021-01-29 CN CN202110127570.7A patent/CN112957059A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102138803A (en) * | 2009-12-22 | 2011-08-03 | 富士胶片株式会社 | Radiation imaging system and assist apparatus for the same |
| CN106419947A (en) * | 2015-08-04 | 2017-02-22 | 通用电气公司 | System and method for tomosynthesis image acquisition |
| CN107423538A (en) * | 2016-02-16 | 2017-12-01 | 西门子保健有限责任公司 | Medical examination system |
| CN212281376U (en) * | 2020-04-13 | 2021-01-05 | 山东新华医疗器械股份有限公司 | X-ray machine |
| CN111493917A (en) * | 2020-04-23 | 2020-08-07 | 上海联影医疗科技有限公司 | Image scanning protocol interaction device |
| CN111772652A (en) * | 2020-07-13 | 2020-10-16 | 上海逸动医学科技有限公司 | Three-dimensional image detection system, device, imaging method and lung detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022262871A1 (en) * | 2021-06-18 | 2022-12-22 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for medical imaging |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7142633B2 (en) | Enhanced X-ray imaging system and method | |
| JP5328075B2 (en) | Apparatus and method for creating a three-dimensional ultrasound image of a portion of an anatomical structure | |
| EP1926431B1 (en) | Direct measuring and correction of scatter for ct | |
| JP5209979B2 (en) | Method and system for three-dimensional imaging in an uncalibrated geometric configuration | |
| US8249216B2 (en) | X-ray moving image radiographing apparatus | |
| US20100172472A1 (en) | Collecting images for image stitching with rotating a radiation detector | |
| BRPI1105671A2 (en) | Image processing device and method | |
| JP5406063B2 (en) | Reconstruction calculation device, reconstruction calculation method, and X-ray CT apparatus | |
| JP2009545358A (en) | Rotating X-ray scanning planning system | |
| CN109671128B (en) | Data processing in image reconstruction process, image reconstruction method and device | |
| JP2006110342A (en) | Method and apparatus for reconstruction of tilted cone beam data | |
| US20100239063A1 (en) | Rotating anode x-ray tube wibh a saddle shaped anode | |
| CN112957059A (en) | Medical imaging method, apparatus, device, system and storage medium | |
| US9326746B2 (en) | X-ray CT apparatus | |
| JP2021133247A (en) | Methods and systems for digital mammography imaging | |
| JP2019030478A (en) | Medical image diagnostic device and image processing method | |
| US11158093B2 (en) | Workstation, medical imaging device including same, and control method therefor | |
| JP2000254117A (en) | Ct device for imaging of layer inclined with respect to system axis | |
| JP2010184086A (en) | Radiographic ct apparatus, and its control method | |
| CN111583354A (en) | Training method for medical image processing unit and medical image motion estimation method | |
| US20240108302A1 (en) | Method for identifying interventional object, imaging system, and non-transitory computer-readable medium | |
| JP7469929B2 (en) | Medical image processing device and X-ray imaging device | |
| JP7244280B2 (en) | MEDICAL IMAGE DIAGNOSTIC APPARATUS AND MEDICAL IMAGE DIAGNOSTIC METHOD | |
| JPH11332862A (en) | X-ray ct apparatus | |
| US20230145523A1 (en) | Medical image processing apparatus, x-ray ct apparatus, medical image processing method and non-volatile storage medium storing program |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |