CN110942490A - Data transmission method and device and electronic equipment - Google Patents
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Abstract
The invention discloses a data transmission method and device and electronic equipment. The data transmission method comprises the following steps: acquiring a preview image numerical range of the imaging parameters; extracting imaging preview data corresponding to the preview image numerical range from the imaging data; the imaging data is sent by the detector; and sending the imaging preview data to peripheral equipment so that the peripheral equipment can reconstruct a preview image according to the imaging preview data. In the scanning process of the CT equipment, imaging preview data can be extracted in real time and image reconstruction can be carried out, the effectiveness of CT scanning data can be judged in time, scanning is interrupted or scanning is carried out again in time under the condition that the imaging effect of the CT scanning data is judged to be not ideal, the CT scanning data is not found to be not ideal after a complete scanning protocol is executed, and the image reconstruction efficiency can be improved.
Description
Technical Field
The invention relates to the technical field of medical imaging, in particular to a data transmission method and device and electronic equipment.
Background
Computed Tomography (CT) is a method of scanning a tomographic image of a scanning object such as a human body with X-rays. Since the density of a scanning object such as a human body is different, the transmittance of the scanning object such as an X-ray is different. After the detector of the CT equipment converts the received X-rays penetrating through the scanning object into electric signals, the electric signals are transmitted to a computer (an image reconstruction workstation) through a data transmission system of the CT equipment to reconstruct a tomographic image, and the tomographic image can be obtained for doctors to diagnose diseases.
In recent years, the application of multi-energy spectrum CT (computed tomography) imaging technology is becoming more and more popular due to the higher imaging quality. The scanning data volume collected by the detector of the multi-energy spectrum CT equipment is very large, the data bandwidth collected by the detector is far larger than the slip ring channel bandwidth of a data transmission system, namely the data transmission rate of the data transmission system is far smaller than the data collection rate of the detector, so that the existing multi-energy spectrum CT imaging cannot meet the requirements of real-time image reconstruction and medical staff for observing the scanned image in real time when a patient scans.
Disclosure of Invention
The invention provides a data transmission method and device and electronic equipment, and aims to improve the efficiency of CT image reconstruction.
Specifically, the invention is realized by the following technical scheme:
in a first aspect, a data transmission method is provided, which is applied to a data acquisition board of a CT apparatus; the CT apparatus further includes a detector;
the data transmission method comprises the following steps:
acquiring a preview image numerical range of the imaging parameters;
extracting imaging preview data corresponding to the preview image numerical range from the imaging data; the imaging data is sent by the detector;
and sending the imaging preview data to peripheral equipment so that the peripheral equipment can reconstruct a preview image according to the imaging preview data.
Optionally, the data acquisition board comprises a data storage device;
the data transmission method further comprises:
caching imaging data sent by the detector in the data storage device;
extracting imaging preview data corresponding to the preview image numerical range from the imaging data, including:
and extracting the imaging preview data from the imaging data buffered in the data storage device.
Optionally, the data transmission method further includes:
acquiring an imaging numerical range of an imaging parameter;
buffering imaging data sent by the detector in front of the data storage device, wherein the buffering imaging data comprises:
and extracting imaging data corresponding to the imaging numerical range from the data sent by the detector, and buffering the imaging data in the data storage device.
Optionally, the imaging parameters include at least one of the following parameters: and establishing an image view field FOV, an energy spectrum serial number and a slice serial number.
Optionally, extracting imaging preview data corresponding to the preview image numerical range from the imaging data includes:
extracting energy spectrum data corresponding to the numerical range of the energy spectrum serial number from the imaging data;
extracting slice data corresponding to the numerical range of the slice serial number from the energy spectrum data;
and extracting imaging preview data corresponding to the numerical range of the FOV from the slice data.
In a second aspect, a data transmission device is provided, which is applied to a data acquisition board of a CT apparatus; the CT apparatus further includes a detector;
the data transmission apparatus includes:
the first acquisition module is used for acquiring a preview image numerical range of the imaging parameter;
the first extraction module is used for extracting imaging preview data corresponding to the preview image numerical range from the imaging data; the imaging data is sent by the detector;
and the sending module is used for sending the imaging preview data to peripheral equipment so as to enable the peripheral equipment to reconstruct a preview image according to the imaging preview data.
Optionally, the data acquisition board comprises a data storage device;
the data transmission apparatus further includes:
the cache module is used for caching the imaging data sent by the detector in the data storage device;
the first extraction module is specifically configured to extract the imaging preview data from the imaging data buffered in the data storage device.
Optionally, the data transmission apparatus further includes:
the second acquisition module is used for acquiring an imaging numerical range of the imaging parameter;
and the second extraction module is used for extracting the imaging data corresponding to the imaging numerical range from the data sent by the detector and calling the cache module.
Optionally, the imaging parameters include at least one of the following parameters: and establishing an image view field FOV, an energy spectrum serial number and a slice serial number.
Optionally, the first extraction module is specifically configured to:
extracting energy spectrum data corresponding to the numerical range of the energy spectrum serial number from the imaging data;
extracting slice data corresponding to the numerical range of the slice serial number from the energy spectrum data;
and extracting imaging preview data corresponding to the numerical range of the FOV from the slice data.
In a third aspect, an electronic device is provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the processor implements the data transmission method described in any one of the above.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
in the scanning process of the CT equipment, imaging preview data can be extracted in real time and image reconstruction can be carried out, the effectiveness of CT scanning data can be judged in time, scanning is interrupted or scanning is carried out again in time under the condition that the imaging effect of the CT scanning data is judged to be not ideal, the CT scanning data is not found to be not ideal after a complete scanning protocol is executed, and the image reconstruction efficiency can be improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1A is a schematic diagram of a CT apparatus according to an exemplary embodiment of the present invention;
FIG. 1B is a block diagram of a data acquisition board according to an exemplary embodiment of the present invention;
FIG. 2 is a flow chart illustrating a method of data transmission in accordance with an exemplary embodiment of the present invention;
FIG. 3 is a flow chart illustrating another method of data transmission in accordance with an exemplary embodiment of the present invention;
FIG. 4 is a data structure of imaging data shown in an exemplary embodiment of the invention;
fig. 5A is a block diagram of a data transmission apparatus according to an exemplary embodiment of the present invention;
fig. 5B is a block diagram of a data transmission apparatus according to another exemplary embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an exemplary embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
Referring to fig. 1A, a schematic structural diagram of a CT apparatus in an example of the embodiment of the present invention is shown, wherein the CT apparatus 100 includes a gantry 11, a radiation source 12, a detector 13, a carrying table 15, and a data acquisition board (see fig. 1B for a specific structure). The detector 13 may be an arc detector, the detector 13 comprising a plurality of detection modules, each detection module comprising a sensor array. The gantry 11 is formed with an opening 111 for receiving the scan object 14. The radiation source 12 and the detector 13 are oppositely arranged at both sides of the opening 111 of the gantry 11. The scan object 14, such as a patient, is placed on the support table 15, and may be located in the opening 111 together with the support table 15. The radiation source 12 and the detector 13 are rotated relative to the gantry 11 and the scan object 14 for scanning.
Referring to fig. 1B, the data acquisition board generally includes a data processing module 161, a data storage device 162, and a data transmission module 163. In the process of executing the scanning protocol by the CT device, the data processing module 161 obtains CT scan data acquired by the detector 13, and obtains imaging data after performing processing such as analysis, splicing, data alignment, and the like on the CT scan data, and caches the imaging data in the data storage device 162. The data transfer module 163 acquires imaging data from the data storage device 162 and sends it to a computer via the slip ring fiber for image reconstruction. The data acquisition board currently used by the CT apparatus transmits imaging data, and stores all scanning data acquired by the detector in the data storage device 162, where the scanning data includes data unnecessary for imaging, which may cause a burden on the data storage device; the data transmission module 163 sequentially fetches all the imaging data from the data storage device 162 and transmits the imaging data to the computer process for image reconstruction, which cannot determine in advance whether the scan data obtained by executing the scan protocol is valid, and if the data is invalid, the scan protocol needs to be executed again, so that the image reconstruction efficiency is low.
Based on the above, fig. 2 exemplarily shows a flow chart of a data transmission method applied to a data acquisition board of a CT apparatus. Referring to fig. 2, the data transmission method includes the following steps:
Wherein the imaging parameters include: and establishing an imaging view field FOV, an energy spectrum serial number, a slice serial number and a scanning channel. The preview image numerical range comprises an extraction range of the energy spectrum serial number, an extraction range of the slice serial number and an extraction range of the image-building visual field FOV. The preview image value range can be calculated according to experimental data or experience of technicians.
The preview image value range may be written in the scan protocol, and when the CT apparatus executes the scan protocol, the step 202 is executed to sequentially extract the energy spectrum data corresponding to the value range of the energy spectrum number from the imaging data, extract the slice data corresponding to the value range of the slice number from the energy spectrum data, and extract the imaging preview data corresponding to the value range of the FOV from the slice data.
And 203, sending the imaging preview data to the peripheral equipment so that the peripheral equipment can reconstruct a preview image according to the imaging preview data.
In step 203, the imaging preview data sent to the peripheral device (e.g., a computer) is used to determine whether CT scan data is valid, the data size is small, real-time data transmission can be achieved, and whether CT scan data currently scanned is valid (whether scan data is valid can be determined by verifying whether the outline of the preview image is complete) is determined in real time, so that scanning is interrupted or re-scanned in time when it is determined that the imaging effect of CT scan data is not ideal, and it is not necessary to find that CT scan data is not ideal after a complete scan protocol is executed. And if the CT scanning data is judged to be valid, all the imaging data are sent to the peripheral equipment so as to carry out image reconstruction on the imaging data and provide reference for medical diagnosis. The data transmission method of the embodiment can improve the efficiency of image reconstruction.
Fig. 3 is a flowchart illustrating a data transmission method according to another exemplary embodiment of the present invention, the data transmission method including the steps of:
Similar to the preview image value range, the imaging value range includes an extraction range of the energy spectrum serial number, an extraction range of the slice serial number, and an extraction range of the imaging field of view FOV. The preview image value range can be calculated according to experimental data or experience of technicians.
Wherein the imaging data buffered in the data storage means is imaging data required for medical diagnosis.
Fig. 4 exemplarily shows a data structure of imaging data buffered in the data storage device, wherein each picture includes N1 frames of energy spectrum data, each frame of energy spectrum data includes N2 frames of slice data, each frame of slice includes N3 frames of channel data acquired by scanning channels, each frame of energy spectrum data, slice data, and channel data includes a start identifier and an end identifier, and the content description is shown in table 1.
TABLE 1
After the step 302 is executed, data which is not needed for imaging and acquired by the detector is eliminated, and only needed imaging data is stored in the data storage device, so that the imaging data amount is reduced, the burden of the data storage device is reduced, and further the hardware storage requirement and the cost can be reduced.
And 303, acquiring a preview image numerical range of the imaging parameters.
And step 304, extracting imaging preview data corresponding to the numerical range of the preview image from the imaging data stored in the data storage device.
And 305, sending the imaging preview data to the peripheral equipment so that the peripheral equipment can reconstruct a preview image according to the imaging preview data.
And if the imaging preview data is judged to be valid through the preview image, all the imaging data cached in the data storage device are sent to the peripheral equipment for image reconstruction.
The steps 303 to 305 are similar to the specific implementation of the steps 201 to 203, and are not repeated here.
The data extraction process of the imaging data is further described below with reference to fig. 4:
and S1, extracting the energy spectrum data. Traversing the imaging data frame, and starting data extraction when detecting the initial identification of the energy spectrum corresponding to the numerical range of the energy spectrum serial number; and when the ending mark of the energy spectrum corresponding to the numerical range of the energy spectrum serial number is detected, finishing data extraction to obtain energy spectrum data.
And S2, extracting slice data. Traversing the extracted energy spectrum data, and starting data extraction when a slice initial identification corresponding to the numerical range of the slice serial number is detected; and when the end mark of the slice corresponding to the numerical range of the slice serial number is detected, finishing data extraction to obtain slice data.
S3, the imaging data is extracted. Traversing the extracted slice data, and starting data extraction when detecting the initial identifier of the scanning channel corresponding to the numerical range of the FOV; and when the end mark of the scanning channel corresponding to the numerical range of the FOV is detected, finishing data extraction to obtain imaging data.
The steps S1 to S3 are repeated until the extraction of all the imaging data is completed.
The data extraction of the imaging preview data is similar to the specific implementation process of the data extraction of the imaging data, and is not repeated here.
Corresponding to the foregoing data transmission method embodiment, the present invention also provides an embodiment of a data transmission apparatus.
Fig. 5A is a schematic block diagram of a data transmission device applied to a data acquisition board of a CT apparatus according to an exemplary embodiment of the present invention. The data transmission apparatus includes: a first acquisition module 51, a first extraction module 52 and a sending module 53.
The first obtaining module 51 is used for obtaining a preview image numerical range of the imaging parameter.
The first extracting module 52 is configured to extract imaging preview data corresponding to the preview image value range from the imaging data; the imaging data is sent by the detector.
The sending module 53 is configured to send the imaging preview data to an external device, so that the external device performs preview image reconstruction according to the imaging preview data.
Optionally, the data acquisition board comprises a data storage device;
the data transmission apparatus further includes:
the cache module is used for caching the imaging data sent by the detector in the data storage device;
the first extraction module is specifically configured to extract the imaging preview data from the imaging data buffered in the data storage device.
Optionally, the imaging parameters include at least one of the following parameters: and establishing an image view field FOV, an energy spectrum serial number and a slice serial number.
Optionally, the first extraction module is specifically configured to:
extracting energy spectrum data corresponding to the numerical range of the energy spectrum serial number from the imaging data;
extracting slice data corresponding to the numerical range of the slice serial number from the energy spectrum data;
and extracting imaging preview data corresponding to the numerical range of the FOV from the slice data.
Fig. 5B is a schematic block diagram of a data transmission device according to another exemplary embodiment of the present invention, and the structure of the data transmission device according to this embodiment is substantially the same as that of the data transmission device shown in fig. 5A, except that the data transmission device further includes: a second acquisition module 54 and a second decimation module 55.
The second obtaining module 54 is configured to obtain an imaging numerical range of the imaging parameter;
the second extracting module 55 is configured to extract imaging data corresponding to the imaging numerical range from the data sent by the detector, and call the caching module to cache the imaging data in the data storage device.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, which shows a block diagram of an exemplary electronic device 60 suitable for implementing an embodiment of the present invention. The electronic device 60 shown in fig. 6 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiment of the present invention.
As shown in fig. 6, the electronic device 60 may be embodied in the form of a general purpose computing device, which may be, for example, a server device. The components of the electronic device 60 may include, but are not limited to: the at least one processor 61, the at least one memory 62, and a bus 63 connecting the various system components (including the memory 62 and the processor 61).
The bus 63 includes a data bus, an address bus, and a control bus.
The memory 62 may include volatile memory, such as Random Access Memory (RAM)621 and/or cache memory 622, and may further include Read Only Memory (ROM) 623.
The memory 62 may also include a program tool 625 (or utility tool) having a set (at least one) of program modules 624, such program modules 624 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.
The processor 61 executes various functional applications and data processing, such as the data transmission method provided in any of the above embodiments, by running a computer program stored in the memory 62.
The electronic device 60 may also communicate with one or more external devices 64 (e.g., keyboard, pointing device, etc.). Such communication may be through an input/output (I/O) interface 65. Also, the model-generating electronic device 60 may also communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via a network adapter 66. As shown, network adapter 66 communicates with the other modules of model-generated electronic device 50 via bus 63. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the model-generating electronic device 60, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems, etc.
It should be noted that although in the above detailed description several units/modules or sub-units/modules of the electronic device are mentioned, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the units/modules described above may be embodied in one unit/module according to embodiments of the invention. Conversely, the features and functions of one unit/module described above may be further divided into embodiments by a plurality of units/modules.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (11)
1. A data transmission method is characterized in that the data transmission method is applied to a data acquisition board of CT equipment; the CT apparatus further includes a detector;
the data transmission method comprises the following steps:
acquiring a preview image numerical range of the imaging parameters;
extracting imaging preview data corresponding to the preview image numerical range from the imaging data; the imaging data is sent by the detector;
and sending the imaging preview data to peripheral equipment so that the peripheral equipment can reconstruct a preview image according to the imaging preview data.
2. The data transmission method of claim 1, wherein the data acquisition board comprises a data storage device;
the data transmission method further comprises:
caching imaging data sent by the detector in the data storage device;
extracting imaging preview data corresponding to the preview image numerical range from the imaging data, including:
and extracting the imaging preview data from the imaging data buffered in the data storage device.
3. The data transmission method of claim 2, wherein the data transmission method further comprises:
acquiring an imaging numerical range of an imaging parameter;
buffering imaging data sent by the detector in front of the data storage device, wherein the buffering imaging data comprises:
and extracting imaging data corresponding to the imaging numerical range from the data sent by the detector, and buffering the imaging data in the data storage device.
4. The data transmission method of claim 1, wherein the imaging parameters include at least one of: and establishing an image view field FOV, an energy spectrum serial number and a slice serial number.
5. The data transmission method of claim 4, wherein extracting imaged preview data corresponding to the preview image value range from imaged data comprises:
extracting energy spectrum data corresponding to the numerical range of the energy spectrum serial number from the imaging data;
extracting slice data corresponding to the numerical range of the slice serial number from the energy spectrum data;
and extracting imaging preview data corresponding to the numerical range of the FOV from the slice data.
6. A data transmission device is characterized in that the data transmission device is applied to a data acquisition board of CT equipment; the CT apparatus further includes a detector;
the data transmission apparatus includes:
the first acquisition module is used for acquiring a preview image numerical range of the imaging parameter;
the first extraction module is used for extracting imaging preview data corresponding to the preview image numerical range from the imaging data; the imaging data is sent by the detector;
and the sending module is used for sending the imaging preview data to peripheral equipment so as to enable the peripheral equipment to reconstruct a preview image according to the imaging preview data.
7. The data transmission device of claim 6, wherein the data acquisition board includes a data storage device;
the data transmission apparatus further includes:
the cache module is used for caching the imaging data sent by the detector in the data storage device;
the first extraction module is specifically configured to extract the imaging preview data from the imaging data buffered in the data storage device.
8. The data transmission apparatus of claim 7, wherein the data transmission apparatus further comprises:
the second acquisition module is used for acquiring an imaging numerical range of the imaging parameter;
and the second extraction module is used for extracting the imaging data corresponding to the imaging numerical range from the data sent by the detector and calling the cache module.
9. The data transmission apparatus of claim 6, wherein the imaging parameters include at least one of: and establishing an image view field FOV, an energy spectrum serial number and a slice serial number.
10. The data transmission apparatus according to claim 9, wherein the first decimation module is specifically configured to:
extracting energy spectrum data corresponding to the numerical range of the energy spectrum serial number from the imaging data;
extracting slice data corresponding to the numerical range of the slice serial number from the energy spectrum data;
and extracting imaging preview data corresponding to the numerical range of the FOV from the slice data.
11. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the data transmission method of any one of claims 1 to 5 when executing the computer program.
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| CN114299187A (en) * | 2021-12-31 | 2022-04-08 | 上海联影医疗科技股份有限公司 | Image reconstruction method, device, system, computing equipment and storage medium |
| WO2023125095A1 (en) * | 2021-12-31 | 2023-07-06 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for image reconstruction |
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