CN109924998A - Medical imaging procedure and photon counting power spectrum CT imaging device - Google Patents
Medical imaging procedure and photon counting power spectrum CT imaging device Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of medical imaging procedure and photon counting power spectrum CT imaging devices.This method comprises: the target acquisition parameter of setting photon counting detector, wherein the target acquisition parameter includes that probe unit parameter, energy interval parameter and detector enable one of parameter or a variety of；It is counted according to photon of the target acquisition parameter to each energy section, obtains scan data；According to the scan data reconstruction medical image.The technical solution of the embodiment of the present invention solves the problems, such as that the data volume of traditional solution photon counting power spectrum CT is big, data link difficult design, the data volume of image is reduced while not can guarantee image spatial resolution, realize the detecting parameter that photon counting detector is set according to clinical demand, more meet clinical practice demand, guarantees the data volume for reducing image while image spatial resolution.
Description
Technical field
The present embodiments relate to medical imaging technology field more particularly to a kind of medical imaging procedures and photon counting energy
Compose CT imaging device.
Background technique
Photon counting power spectrum CT (Computed Tomography, CT scan), with material composition point
It analyses function, the dose of radiation for reducing patient, improve the advantages that image spatial resolution.Photon counting power spectrum CT has become the country
The next-generation CT developing direction that outer academia and industry are paid close attention to jointly.Wherein, PCD (Photon counting
Detector, photon counting detector) it is photon counting power spectrum CT most critical, most crucial technology.In order to improve image space
Resolution ratio, PCD Pixel Dimensions are typically designed as several hundred microns, are much smaller than traditional CT detectors Pixel Dimensions (1x1mm2), this meaning
Taste to realize same scanning range, the pixel number of PCD is much larger than traditional CT.In addition, in order to realize that photon counting power spectrum is discriminated
The power spectrum function of other CT, each pixel need to read the data in multiple and different energy sections.The data volume of photon counting power spectrum CT
Much larger than traditional CT, this brings great challenge to the data link design of photon counting power spectrum CT.Therefore, how to guarantee to scheme
It is particularly significant that data volume is reduced while the resolution ratio of image space.
In the prior art, the data volume for solving photon counting power spectrum CT is big, data link difficult design method mainly collects
In in terms of improve data transfer rate, being compressed to output data and extending CT.Improve data transfer speed
Rate requires height to the hardware design of data-acquisition system, can obviously increase hardware cost.And compressed data will lead to data degradation,
It causes data distortion and influences picture quality.Extend CT rotational time and is only applicable to scan no motion of position, and scanning motion
When object, motion artifacts can be generated when such as scanning cardia.
Summary of the invention
The embodiment of the invention provides a kind of medical imaging procedure and photon counting power spectrum CT imaging devices, are guaranteed with realizing
Image imaging resolution reduces photon counting power spectrum CT data volume.
In a first aspect, the embodiment of the invention provides a kind of medical imaging procedures, this method comprises:
Set the target acquisition parameter of photon counting detector, wherein the target acquisition parameter includes probe unit ginseng
Number, energy interval parameter and detector enable one of parameter or a variety of；
It is counted according to photon of the target acquisition parameter to each energy section, obtains scan data；
According to the scan data reconstruction medical image.
Second aspect, the embodiment of the invention also provides a kind of photon counting power spectrum CT imaging device, which includes:
Radiographic source, for generating x-ray photon；
Photon counting detector, including multiple detector pixels, for according to the X-ray light detected across target object
Son generates scan data；The photon counting detector can be and right according to the energy binned one or more energy section of photon
The photon in each energy section detected is counted；The photon counting detector is configured to adjustable detecting parameter；
Detector control unit, for the detecting parameter according to instruction configuration photon counting detector.
The third aspect, the embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer
Program realizes any medical imaging procedure in the embodiment of the present invention when program is executed by processor.
The target acquisition parameter that the technical solution of the embodiment of the present invention passes through setting photon counting detector, wherein described
Target acquisition parameter includes that probe unit parameter, energy interval parameter and detector enable one of parameter or a variety of, energy
It is enough to be scanned according to clinical demand setting detecting parameter.In turn, according to the target acquisition parameter to the light in each energy section
Son is counted, and scan data is obtained, and can guarantee to reduce scan data volume while image spatial resolution.In turn, according to
Medical image is rebuild in the scan data reconstruction medical image, realization.Above-mentioned technical proposal solves traditional solution
The problem of data volume of photon counting power spectrum CT is big, data link difficult design, while not can guarantee image spatial resolution
The data volume of image is reduced, realizes the detecting parameter for setting photon counting detector according to clinical demand, is more met clinical real
Border demand guarantees the data volume that image is reduced while image spatial resolution.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the medical imaging procedure provided in the embodiment of the present invention one；
Fig. 2 a is a kind of flow chart of the medical imaging procedure provided in the embodiment of the present invention two；
Fig. 2 b is a kind of structural schematic diagram of the explorer count unit provided in the embodiment of the present invention two；
Fig. 2 c is a kind of structural schematic diagram of the explorer count unit provided in the embodiment of the present invention two；
Fig. 3 is a kind of structural schematic diagram of photon counting power spectrum CT imaging device of the offer in the embodiment of the present invention three.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is the flow chart for the medical imaging procedure that the embodiment of the present invention one provides, and the present embodiment is applicable to medicine and sets
The case where standby imaging, it is particularly suitable for the imaging of photon counting power spectrum CT imaging device.This method can be by photon counting power spectrum
CT imaging device executes, which can be realized by hardware and/or software, which can be integrated in equipment (such as photon
Count power spectrum CT imaging device) in execute, specifically comprise the following steps:
Step 101, the target acquisition parameter for setting photon counting detector.
Wherein, the target acquisition parameter includes that probe unit parameter, energy interval parameter and detector enable parameter
One of or it is a variety of.
Wherein, photon counting detector has energy discrimination, is equipped with specific integrated circuit, reaches the x-ray of detector
Photon is recorded in a pulsed fashion, and the pulse height observed is related to photon energy, and by the photon meter of different-energy
Number is added in corresponding energy section.Multipotency x-ray CT imaging based on photon counting detector, just refers to photon counting detector
It is applied in x-ray CT system, through reasonable settings energy threshold, transmission is collected in a manner of dividing energy section and is detected after target not
Co-energy x-ray decaying photon, then carries out tomographic imaging to tested target using the photon information that each energy section is collected into
A kind of imaging technique.Compared with the x-ray CT system based on conventional energy integral model detector, based on photon counting detector
X-ray CT system has very big advantage.Firstly, being rationally arranged using this characteristic of photon counting detector energy discrimination
Energy threshold can preferably inhibit low-energy electron noise；In addition, can be obtained simultaneously to tested target single roentgen radiation x multiple
The x-ray photon of energy section counts, to realize the new imagings such as projection weighted imaging, image weighted imaging and the imaging of K ABSORPTION EDGE
Technology.
Optionally, the target acquisition parameter of photon counting detector can be set according to the scan protocols of object to be scanned,
Detecting parameter can also be manually set according to actual needs with user.
Optionally, the target acquisition parameter of the setting photon counting detector, comprising: obtain the scanning of object to be scanned
Agreement；The target acquisition parameter of the photon counting detector is set according to the scan protocols.
Wherein, object to be scanned can be patient to be detected, object, die body etc..
Optionally, the energy interval parameter includes the range of energy interval number and/or each energy section.The energy range
Between parameter include that at least one of the range in energy interval number and energy section is set.Such as energy interval number can be set to 1
A, 2,5 etc., it is not limited here, are selected according to actual clinical demand.It is appreciated that the energy interval number divided
More, then the range in single energy section is smaller.For example, the range in energy section can be when being set as 1 energy section
20keV to 140keV；When being set as multiple energy sections, it can be and divide multiple sections in the range of 20keV to 140keV.
The probe unit parameter includes the quantity of pixel included in each explorer count unit.It is worth explanation
It is that each explorer count unit is made of one or more adjacent pixels.It can be by the way that explorer count unit institute be arranged
The quantity for the pixel for including divides explorer count unit, i.e., divides adjacent multiple pixels into one group as one and count
Counting unit, each counting unit record the photon numbers in each energy section.It is understood that with explorer count list
The difference for the number of pixels that member includes, explorer count unit size also can be different.The pixel number that explorer count unit includes
Mesh is more, and explorer count unit size is bigger.
It includes the pixel number of rows being activated in the photon counting detector in scanning that the detector, which enables parameter,.
Wherein, the detector pixel being activated receives x-ray photon and generates electric signal, to generate scan data；
The detector pixel being not enabled cannot receive photon and generate scan data.
Detector in the present embodiment can be with the pixel of the predeterminated position of open or closed photon detector.Such as it can set
It is set to the pixel of the corresponding row of one third among an open detector, makes detector only open a part.
Optionally, the detecting parameter of the setting photon counting detector, including at least one of following:
By closing or enabling the pixel of the predetermined position of the photon counting detector, the photon described in scanning
The pixel number of rows being activated in digital detector is adjusted；
Set the quantity of pixel included in each explorer count unit；
Setting scans the range in energy interval number and/or each energy section every time.
Step 102 is counted according to photon of the target acquisition parameter to each energy section, obtains scan data.
Since different substances or different tissues are different to the decaying of the photon in different-energy section, pass through setting
The scan data that different detecting parameters obtains, can rebuild to obtain the medical image for meeting different clinical demands.
Based on photon counting detector x-ray CT image reconstruction, it is that different-energy threshold value is arranged with photon counting detector
Mode collect the number of photons after transmiting tested target, when energy threshold setting is more, detector is collected in corresponding energy section
The number of photons arrived is less, and data for projection noise is bigger；In addition, photon counting detector collects transmission photons in the process vulnerable to arteries and veins
Punching accumulation, charge are shared and the influences such as incoherent scattering, then more noise is usually contained in the x-ray photon number being collected into, benefit
It is difficult to reconstruct the x-ray CT image of high quality with traditional analytical algorithm.
Step 103, according to the scan data reconstruction medical image.
Wherein, medical image can be the CT image scanned by photon counting power spectrum CT imaging device.
The target acquisition parameter that the technical solution of the embodiment of the present invention passes through setting photon counting detector, wherein described
Target acquisition parameter includes that probe unit parameter, energy interval parameter and detector enable at least one of parameter, can
Detecting parameter is arranged according to clinical demand to be scanned.In turn, according to the target acquisition parameter to the photon in each energy section
It is counted, obtains scan data, can guarantee to reduce scan data volume while image spatial resolution.In turn, according to institute
Scan data reconstruction medical image is stated, medical image is rebuild in realization.Above-mentioned technical proposal solves traditional solution light
The problem of data volume of sub-count power spectrum CT is big, data link difficult design, subtracts while not can guarantee image spatial resolution
The data volume of few image, realizes the detecting parameter for setting photon counting detector according to clinical demand, more meets clinical practice
Demand guarantees the data volume that image is reduced while image spatial resolution.
Embodiment two
Fig. 2 a is a kind of flow chart of medical imaging procedure provided by Embodiment 2 of the present invention, and the present embodiment is in above-mentioned implementation
On the basis of example, optionally, the target acquisition parameter of the setting photon counting detector, comprising: from preset a variety of spies
It surveys in device mode and selects one kind, and using the default detecting parameter of selected mode detector as the photon counting detector
Target acquisition parameter.
On this basis, further, the mode detector includes first mode and second mode, wherein described
The explorer count unit size of one mode is less than the explorer count unit size of the second mode.
On this basis, further, the energy interval number of the first mode is lower than the energy range of the second mode
Between number.
On this basis, further, the pixel row being activated in the photon counting detector under the first mode
Number is less than the pixel number of rows being activated in photon counting detector described in the second targeted scans mode.
On this basis, further, the first mode is using a detector pixel as an explorer count list
Member, the second mode is using adjacent multiple detector pixels as an explorer count unit.
As shown in Figure 2 a, the method for the present embodiment specifically comprises the following steps:
Step 201 selects one kind from preset a variety of mode detectors, and with the default of selected mode detector
Target acquisition parameter of the detecting parameter as the photon counting detector.
It can be according to actual clinical demand by the combination of different detecting parameters, to form a variety of preset detectors
Mode.Each mode detector can be the preferably default detecting parameter for meeting clinical demand setting, and it is big to be suitable for user
It is convenient to use in more situations.In actual use, system is selected in one kind automatically and this is suitble to sweep by the scan protocols of acquisition patient
The mode detector for retouching agreement is scanned, or manually selects one such mode detector to be scanned by user.This
Outside, some detecting parameters can also be arranged according to actual clinical demand in user, customized mode detector is formed, convenient for subsequent
It uses.
Optionally, the mode detector includes first mode and second mode, wherein
The explorer count unit size of the first mode is less than the explorer count unit size of the second mode.
Optionally, the energy interval number of the first mode is lower than the energy interval number of the second mode.
Optionally, the pixel number of rows being activated in the photon counting detector under the first mode is less than described second
The pixel number of rows being activated in photon counting detector described in mode.
Optionally, the first mode is using a detector pixel as an explorer count unit, second mould
Formula is using adjacent multiple detector pixels as an explorer count unit.
For example, second mode can be 9 adjacent pixels as an explorer count unit, be also possible to phase
16 adjacent pixels it is not limited here, can comprehensively consider data volume and imaging resolution as an explorer count unit
Demand be configured.
Correspondingly, the explorer count unit size of first mode can be 0.334*0.334mm*mm, second mode is visited
Surveying device counting unit size can be 1.0*1.0mm*mm.
For example, the energy interval number of first mode can be set to 1, and the energy interval number of second mode can be set to
6, herein with no restrictions, it can be arranged according to actual needs.
For example, the pixel number of rows of first mode being activated is a part of whole detector pixels；Such as detector
1/2 or 1/3 intermediate pixel, such as detector whole pixel are always divided into 60 rows, and intermediate 30 rows or intermediate 20 rows are used only
Actual demand can be met for detecting photon, then for example detector whole pixel is always divided into 320 rows, using only centre
100 row's pixels；The pixel number of rows of second mode being activated can be set to whole openings, herein with no restrictions, can be according to reality
Demand setting.
Wherein, first mode can be to the reply demanding situation of imaging resolution, such as can be in clinic
The higher application scenarios of spatial resolution requirements are imaged in tiny joint, cochlea etc..Because scanned position is smaller, so detector can
Can meet the needs of clinical scanning range with only open 1/3 intermediate pixel, so that realizing the same of ultrahigh resolution
When greatly reduce data volume.
Wherein, second mode can require low situation to reply imaging resolution, can be used for all pairs of spatial resolutions
Traditional CT imaging of less demanding and spectral imaging.
Step 202 is counted according to photon of the target acquisition parameter to each energy section, obtains scan data.
Step 203, according to the scan data reconstruction medical image.
Illustratively, the present embodiment can divide three kinds of mode detectors, respectively can be Normal mode (general mould
Formula), High Resolution (HR) mode (high resolution model) and Ultra-high Resolution (UHR) mode are (super
High resolution model), specific detecting parameter is as shown in the table:
The specific sensing element size of one 3 kinds of modes of table and energy interval number
It should be noted that in the design of PCD detector, in order to realize higher image spatial resolution, photon counting
Detector pixel size is typically designed as several hundred microns, and each pixel is a counting unit.
Wherein, Normal mode can be using 9 adjacent pixels as an explorer count unit, and it is all right to can be used for
The not high traditional CT imaging of spatial resolution requirements and spectral imaging.In this case, the counting list of photon counting power spectrum CT
Member is consistent with traditional CT.It means that if under photon counting power spectrum CT and traditional CT number of pixels unanimous circumstances, data volume
Only 4-6 times of traditional CT can reduce the design difficulty of photon counting power spectrum CT data link.
HR mode can be using 3 adjacent pixels as an explorer count unit.This mode is mainly used for micro-
The high-resolution imaging of small lesion, while can realize energy spectrum analysis, it can be the compromise proposal of Normal mode and UHR mode.
UHR mode can be using 1 pixel as an explorer count unit.This scanning is mainly for thin in clinic
The higher application scenarios of spatial resolution requirements are imaged in Minor articulus, cochlea etc..Because scanned position is smaller, so detector only opens
Can meet the needs of clinical scanning range with 1/3 pixel number of rows.This allows for big while realizing ultrahigh resolution
Data volume is reduced greatly.
Three kinds of mode detectors of the present embodiment are example, can be extended according to clinical practice demand.
Under these three mode detectors, the division of PCD explorer count unit can be as shown in Figure 2 b, and Fig. 2 b is followed successively by
Normal mode, HR mode and the corresponding explorer count unit of UHR mode.Wherein, Normal mode forms one by 9 pixels
A explorer count unit, HR mode form an explorer count unit by 3 pixels, and UHR mode forms one by 1 pixel
A explorer count unit.It is understood that the division of number of pixels and pixel that explorer count unit includes can be with
It sets according to demand, it is not limited here, such as the division of PCD explorer count unit can also be as shown in Figure 2 c.
Wherein, each pixel is a sensing element, and multiple adjacent pixels in solid box form a detector meter
Counting unit.In addition, different energy section numbers is designed according to different mode detectors, for example, drawing under Normal mode
It is big to play counting unit, so corresponding data volume is small, multiple energy interval numbers can be set as needed, to realize energy spectrum analysis
Premium Features.On the contrary, because its counting unit is small, so corresponding data volume is big, 1 can only be arranged as needed under UHR mode
A energy section.
It should be noted that the division of the above mode detector and being not fixed, the detecting parameter of every kind of mode detector
Corresponding it can be arranged according to demand.
Based on the different mode detector of different clinical application Scenario Designs, it can guarantee photon counting power spectrum CT energy
Under the premise of spectrum analysis function, high spatial resolution imaging, it is big can fundamentally to solve photon counting power spectrum CT data volume
Problem.
The technical solution of the present embodiment from preset a variety of mode detectors by selecting one kind, and with selected spy
Target acquisition parameter of the default detecting parameter of device mode as the photon counting detector is surveyed, convenient for user according to clinical need
Selection mode detector is asked to be scanned.It in turn, include first mode and second mode by the mode detector, described first
The explorer count unit size of mode is less than the explorer count unit size of the second mode；The energy of the first mode
Measure the energy interval number that interval number is lower than the second mode；It is activated in the photon counting detector under the first mode
Pixel number of rows be less than the pixel number of rows being activated in photon counting detector described in the second targeted scans mode；It is described
First mode is using a detector pixel as an explorer count unit, and the second mode is with adjacent multiple detectors
Pixel can adapt to the demand of high-resolution imaging and low resolution imaging, guarantee image as an explorer count unit
The data volume of image is reduced while spatial resolution.
Embodiment three
Fig. 3 is a kind of structural schematic diagram for photon counting power spectrum CT imaging device that the embodiment of the present invention three provides, such as Fig. 3
Shown, which includes radiographic source 31, photon counting detector 32 and detector control unit 33.
Wherein, radiographic source 31, for generating x-ray photon；
Photon counting detector 32, including multiple detector pixels, for according to the X-ray detected across target object
Photon generates scan data；The photon counting detector can according to the energy binned one or more energy section of photon, and
Photon in each energy section detected is counted；The photon counting detector is configured to adjustable detecting parameter；
Detector control unit 33, for the detecting parameter according to instruction configuration photon counting detector.
Optionally, the detecting parameter according to instruction configuration photon counting detector includes:
According to instruction configure probe unit parameter, including configuration the single counting unit of photon counting detector include it is adjacent
Number of pixels.
Or, according to instruction configuration energy interval parameter, including configuring the energy interval number of photon counting detector and/or each
The range in energy section.
Or, enabling parameter according to instruction configuration detector, penetrated including what configuration photon counting detector enabled for detecting X
The pixel number of rows of linear light.
The technical solution of the present embodiment adjusts photon meter by the detecting parameter according to instruction adjustment photon counting detector
The detection counting unit size of number detector or counting energy section or the adjustment photon counting spy for adjusting photon counting detector
Surveying the pixel number of rows for detecting x-ray photon that device enables may be implemented to set photon counting detector according to clinical demand
Detecting parameter more meets clinical practice demand, guarantees the data volume that image is reduced while image spatial resolution.
Example IV
The embodiment of the present invention four also provides a kind of storage medium comprising computer executable instructions, and the computer can be held
Row instruction is used to execute a kind of medical imaging procedure when being executed by computer processor, this method comprises:
Set the target acquisition parameter of photon counting detector, wherein the target acquisition parameter includes probe unit ginseng
Number, energy interval parameter and detector enable one of parameter or a variety of；
It is counted according to photon of the target acquisition parameter to each energy section, obtains scan data；
According to the scan data reconstruction medical image.
Certainly, a kind of storage medium comprising computer executable instructions, computer provided by the embodiment of the present invention
The method operation that executable instruction is not limited to the described above, can also be performed medical imaging provided by any embodiment of the invention
Relevant operation in method.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, the present invention
It can be realized by software and required common hardware, naturally it is also possible to which by hardware realization, but in many cases, the former is more
Good embodiment.Based on this understanding, technical solution of the present invention substantially in other words contributes to the prior art
Part can be embodied in the form of software products, which can store in computer readable storage medium
In, floppy disk, read-only memory (Read-Only Memory, ROM), random access memory (Random such as computer
Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are with so that a computer is set
Standby (can be personal computer, server or the network equipment etc.) executes method described in each embodiment of the present invention.
It is worth noting that, in the embodiment of above-mentioned photon counting power spectrum CT imaging device, included each unit and
Module is only divided according to the functional logic, but is not limited to the above division, as long as corresponding functions can be realized
?；In addition, the specific name of each functional unit is also only for convenience of distinguishing each other, the protection being not intended to restrict the invention
Range.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (11)
1. a kind of medical imaging procedure characterized by comprising
Set the target acquisition parameter of photon counting detector, wherein the target acquisition parameter includes probe unit parameter, energy
It measures interval parameter and detector enables one of parameter or a variety of；
It is counted according to photon of the target acquisition parameter to each energy section, obtains scan data；
According to the scan data reconstruction medical image.
2. the method according to claim 1, wherein the target acquisition ginseng of the setting photon counting detector
Number, comprising:
Obtain the scan protocols of object to be scanned；
The target acquisition parameter of the photon counting detector is set according to the scan protocols.
3. the method according to claim 1, wherein the target acquisition ginseng of the setting photon counting detector
Number, comprising:
Select one kind from preset a variety of mode detectors, and using the default detecting parameter of selected mode detector as
The target acquisition parameter of the photon counting detector.
4. according to the method described in claim 3, it is characterized in that, the mode detector includes first mode and the second mould
Formula, wherein
The explorer count unit size of the first mode is less than the explorer count unit size of the second mode.
5. according to the method described in claim 4, it is characterized in that, the energy interval number of the first mode is lower than described second
The energy interval number of mode.
6. method according to claim 4 or 5, which is characterized in that the photon counting detector under the first mode
In the pixel number of rows that is activated be less than the pixel being activated in photon counting detector described in the second targeted scans mode
Number of rows.
7. according to the method described in claim 4, it is characterized in that, the first mode is using a detector pixel as one
Explorer count unit, the second mode is using adjacent multiple detector pixels as an explorer count unit.
8. the method according to claim 1, wherein the energy interval parameter include energy interval number and/or
The range in each energy section；The probe unit parameter includes the quantity of pixel included in each explorer count unit；
It includes the pixel number of rows being activated in the photon counting detector in scanning that the detector, which enables parameter,.
9. according to the method described in claim 8, it is characterized in that, the target acquisition ginseng of the setting photon counting detector
Number, including at least one of following:
By closing or enabling the pixel of the predetermined position of the photon counting detector, the photon counting described in scanning
The pixel number of rows being activated in detector is adjusted；
Set the quantity of pixel included in each explorer count unit；
Setting scans the range in energy interval number and/or each energy section every time.
10. a kind of photon counting power spectrum CT imaging device, which is characterized in that the equipment includes: radiographic source, is penetrated for generating X
Linear light；
Photon counting detector, including multiple detector pixels, for according to the x-ray photon life detected across target object
At scan data；The photon counting detector can be according to the energy binned one or more energy section of photon, and to detection
To each energy section in photon counted；The photon counting detector is configured to adjustable detecting parameter；
Detector control unit, for the detecting parameter according to instruction configuration photon counting detector.
11. equipment according to claim 10, which is characterized in that the spy according to instruction configuration photon counting detector
Surveying parameter includes:
Probe unit parameter is configured according to instruction, the adjacent pixel for including including the configuration single counting unit of photon counting detector
Number；
Or, according to instruction configuration energy interval parameter, energy interval number and/or each energy including configuration photon counting detector
The range in section；
Or, parameter is enabled according to instruction configuration detector, including configuration photon counting detector enabling for detecting X-ray light
The pixel number of rows of son.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111289544A (en) * | 2020-02-25 | 2020-06-16 | 沈阳先进医疗设备技术孵化中心有限公司 | CT (computed tomography) equipment and parameter configuration method of detector array of CT equipment |
| CN112168196A (en) * | 2019-07-02 | 2021-01-05 | 通用电气精准医疗有限责任公司 | System and method for high resolution spectral computed tomography imaging |
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