CN106539593A - Medical image system and its method for testing performance - Google Patents
Medical image system and its method for testing performance Download PDFInfo
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- CN106539593A CN106539593A CN201611079596.4A CN201611079596A CN106539593A CN 106539593 A CN106539593 A CN 106539593A CN 201611079596 A CN201611079596 A CN 201611079596A CN 106539593 A CN106539593 A CN 106539593A
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- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 79
- 238000012545 processing Methods 0.000 claims abstract description 19
- 238000003384 imaging method Methods 0.000 claims description 10
- 230000005855 radiation Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 230000002285 radioactive effect Effects 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 6
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000013170 computed tomography imaging Methods 0.000 description 2
- 238000002059 diagnostic imaging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002600 positron emission tomography Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- BOYZAERJCXIRAX-UHFFFAOYSA-N lutetium(3+);trisilicate Chemical compound [Lu+3].[Lu+3].[Lu+3].[Lu+3].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] BOYZAERJCXIRAX-UHFFFAOYSA-N 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
- A61B6/035—Mechanical aspects of CT
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
- A61B5/0035—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for acquisition of images from more than one imaging mode, e.g. combining MRI and optical tomography
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/037—Emission tomography
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
- A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
- A61B6/5229—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image
- A61B6/5235—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/52—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/5215—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data
- A61B8/5238—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data for combining image data of patient, e.g. merging several images from different acquisition modes into one image
- A61B8/5261—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data for combining image data of patient, e.g. merging several images from different acquisition modes into one image combining images from different diagnostic modalities, e.g. ultrasound and X-ray
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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Abstract
The invention provides a kind of medical image system and its method for testing performance, the medical image system includes the main control computer of scanning device, and the main control computer includes data processing equipment and display device, and the method for testing performance includes：Initial data is gathered using the scanning device, and the initial data is sent to into main control computer；The data processing equipment carries out performance detection based on the initial data to the medical image system, and the performance detection includes at least one detection, judges whether at least one detection meets the requirements；The display device shows the testing result of at least one detection.It is when the medical image system of the present invention carries out performance detection, easy to operate, efficient.
Description
Technical field
The invention belongs to medical imaging technology field, the method for testing performance of more particularly to a kind of medical image system and doctor
Learn imaging system.
Background technology
Medical image system needs the working condition of periodic detection equipment each side during routine use, to guarantee
The performance that equipment can be brought into normal play, smoothly completes the scanning to patient and scanning gained picture can accurately reflect the disease of patient
Stove situation.With positron emission tomography (referred to as：PET) as a example by equipment, routine testing needs the multiple detections to PET system
Detected, the system mode of such as PET, the detection such as optical sensor state, so as to can be further normal to PET device
Scanning patient provides direct guidance.If detection passes through, PET just normally can be used；If detection does not pass through, PET can not be after
Continuous normal use, needs contact service personal to carry out the correction of correlation, to repair the problem of presence.Existing detection method, needs
Perform detection is distinguished to detection, it is cumbersome.
The content of the invention
The present invention is to solve the method for testing performance of existing medical image system presence is cumbersome, time-consuming asking
Topic.
To solve the above problems, the invention provides a kind of medical image system, including scanning device and main control computer,
The scanning device is used to gather initial data, and the initial data can be sent to main control computer；The master control is calculated
Machine includes data processing equipment and display device, and the data processing equipment can be used for based on the initial data to the medical science
Imaging system carries out performance detection, and the performance detection includes at least one detection, judges that at least one detection is
It is no to meet the requirements；The display device can be used for the testing result for showing at least one detection.
In one embodiment of the invention, the display device can be used to scan progress is shown in scanning process
And/or scan remaining time.
In one embodiment of the invention, the initial data includes：The scanning device is in single scanning pattern
The single event data of lower collection and/or gather in the coincidence mode meet event data.
In one embodiment of the invention, the performance detection item includes counting rate, photomultiplier tube state, energy
One or several of drift, flight time state, temperature, humidity, voltage.
In one embodiment of the invention, also including sensor, for gathered data, the data processing equipment is also
Can be used for the data based on sensor acquisition carries out performance detection to the medical image system.
In one embodiment of the invention, the main control computer also includes input equipment, and the input equipment can
For scan pattern is selected before scanning is started, the scan pattern includes passive scanning pattern and active scan pattern.
In one embodiment of the invention, under the passive scanning pattern, the scanning device collection is from this
The data of bottom radiation.
In one embodiment of the invention, under the active mode, the scanning device is gathered from radioactive source
Data.
To solve the above problems, present invention also offers a kind of method for testing performance of medical image system, the medical science
Imaging system includes scanning device and main control computer, and the main control computer includes data processing equipment and display device, bag
Include：Start the performance detection of the imaging system, and detection is shown on the display apparatus；Select to intend carrying out performance detection
One or more items to be detected；Initial data is gathered using the scanning device, and the initial data is sent to into master control meter
Calculation machine；Calculating analysis is carried out to the initial data using data processing equipment, and judges whether the item to be detected conforms to
Ask；Detection and corresponding testing result are shown on the display apparatus.
In one embodiment of the invention, the performance detection of the imaging system starts daily or according to setting
Cycle start, the performance detection item include counting rate, photomultiplier tube state, energy jitter, flight time state, temperature,
One or several of humidity, voltage.
Compared with prior art, the method for testing performance and medical image system of the medical image system that the present invention is provided is held
Row performance detection workflow, and testing result is shown to by user by display device, it is simple to operate, efficient.
Description of the drawings
Fig. 1 is the structural representation of the medical image system in one embodiment of the invention；
Fig. 2 is the structural representation of the main control computer in one embodiment of the invention；
Fig. 3 is the schematic diagram of the display interface in one embodiment of the invention in scanning process；
Fig. 4 is the flow chart of the method for testing performance of the medical imaging devices in one embodiment of the invention；
Fig. 5 is the schematic diagram that the detection in one embodiment of the invention terminates rear display interface；
Fig. 6 is the schematic diagram of the display interface after the detection in another embodiment of the present invention terminates.
Specific embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings to the application
Specific embodiment be described in detail.
Fig. 1 is the structural representation of the medical image system in one embodiment of the invention.Fig. 1 is refer to, the system includes
Scanning device 110 and main control computer 120, scanning device 110 and main control computer communication, send for responding main control computer
Scan instruction, carry out raw data acquisition, and the initial data for being gathered be sent to into main control computer.Main control computer
120 receive the initial data from scanning device 110, and initial data is processed, including based on the initial data for receiving
Performance detection is carried out to the medical image system.
In the present invention, medical image system can include positron emission tomography, magnetic resonance imaging system, list
In photon transmitting computed tomography imaging system, computed tomography imaging system, X-ray imaging system, ultrasonic image-forming system etc.
One or more of combination.
Fig. 2 is the structural representation of the main control computer in one embodiment of the invention.Refer to Fig. 2, main control computer 120
Further include data processing equipment 210, display device 220 and input equipment 230.Data processing equipment 210 can be used to be based on
The initial data carries out performance detection to medical image system, and the performance detection includes at least one detection, and judges each
Whether detection meets the requirements.Display device 220 has display interface, can be used to show the testing result of each detection.Input
Device 230 is used to be input into control instruction, for example, for selecting to intend one or more items to be detected for carrying out performance detection, or uses
In selected scan pattern.
Refer to Fig. 3, in certain embodiments, in scanning process, display device 220 can be used for show scan progress and/
Or remaining sweep time, it is easy to user to understand scan procedure.Show scan progress mode can include showing with progress bar or
With one kind or combination in any in the modes such as percentages show.In an embodiment of the present invention, by detection and corresponding inspection
Survey result to show on the display apparatus.In an alternative embodiment of the invention, the testing result of detection can use it is different
Color is represented, using being met the requirements using green expression, i.e., by detection, is represented undesirable using red, that is, is not passed through
Detection etc..
Performance detection is carried out to medical image system to be included judging whether at least one detection or parameter meet the requirements.Should
Detection or parameter characterization medical system performance, different medical image systems need the detection parameter of perform detection can not
Together.By taking PET system as an example, item to be detected or parameter can include：Counting rate, photomultiplier tube state (for example, PMT), energy
Drift, flight time state, system high pressure, the internal temperature of scanning device, ambient temperature, the interior humidity of scanning device, ring
One or several in border humidity etc..For example, PMT state-detection is capable of detecting when the work for installing each PMT on the detector
State, with the presence or absence of gain.Energy jitter detection can reflect crystal energy peak value file in current PE T look-up table whether according to
So it is suitable for, whether needs to carry out energy correction to update crystal energy peak value file.Flight time is (i.e.：TOF) state-detection will
TOF associated documents in PET look-up tables are detected, judges whether which is still suitable for, otherwise need to carry out TOF corrections.
Data processing equipment 210 can be used for the data of initial data or sensor acquisition to the collection of scanning device 110 and enter
Row analysis and process, to obtain the state of each detection in current system.For example, data processing equipment 210 can be based on scanning
The initial data of the collection of equipment 110 is detected to photomultiplier tube state, energy jitter, flight time state.Using sensing
The data of device collection can be including one or several in counting rate, temperature, humidity, voltage etc..In certain embodiments, scan
The initial data of the collection of equipment 110 includes the single event data gathered under single scanning pattern, and data processing equipment 210 pairs is adopted
The single event data of collection are analyzed to obtain the current state of the detections such as energy jitter.In another embodiment, scanning sets
The initial datas of standby 110 collection be additionally may included in meet gather under pattern meet event data.Data processing equipment 210 pairs
The event data that meets of collection is analyzed to obtain working as the detections such as counting rate, flight time state, time delay state
Front state.As shown in figure 3, scanning device 110 gathers single event data first under single-mode, then adopt in the coincidence mode
Collection meets data.In scanning process, when can show Current Scan pattern, scan progress and remaining scanning by user interface
Between.So that user understands scan procedure.
Medical image system can also include input equipment 230, can be used to scan pattern is selected before scanning is started, and this is swept
The pattern of retouching can include passive scanning pattern and active scan pattern.
Under active scan pattern, radioactive source can be placed in PET scan inside cavity, radioactive source can be but not limited to
The isotope of positron is produced when 18F, 68Ge etc. decay；The shape in source can be rod source, cylindrical source, hollow cylinder source.
Single event data are gathered under single scanning pattern, single event data genaration crystal positions look-up table can be based on, based on calculating
The crystal positions look-up table for obtaining further is calculated crystal energy look-up table, and is compared with predetermined threshold value or theoretical value
Compared with to judge whether present energy drift situation meets the requirements, if so, in display interface prompting user, the detection is conformed to
Ask, if it is not, the prompting user detection is undesirable.
Under passive scanning pattern, scanning device gathers the data from Background radiation.Pet detector is generally using flicker
The scintillation crystal containing lutecium such as crystal, such as lutetium orthosilicate (LSO), orthosilicic acid yttrium lutecium (LYSO), former SiGe lutecium (LGSO).In natural lutecium
Containing 2.6% 176Lu isotopes, with natural background radiation.176Lu launch when which decays 307kev, 202kev and
The three beams gamma-rays of 88kev, the especially gamma-rays of 202kev and 307kev leave scintillation crystal and hit another flicker crystalline substance
Body causes flicker, produces passage of scintillation light.The detection of PMT states can be carried out based on Background radiation, including：Using showing at least one
Intrinsic radioactive flash element of individual characteristic radiation produces Background radiation, and flash element produces flicker in response to Background radiation
Light；The pulse type signal of telecommunication corresponding with the light quantity of passage of scintillation light is produced using optical sensor；According to the signal of telecommunication from optical sensor
Single event data are generated, the single event that accumulation is obtained on optical sensor is counted；Single event on optical sensor is counted and preset
Threshold value compares, and determines whether the performance of the optical sensor meets the requirements.
Fig. 4 is refer to, performance detection is carried out to above-mentioned medical image system, is comprised the following steps：
S401, starts the performance detection of the imaging system, and detection is shown on the display apparatus；
S402, selects one or more items to be detected for intending carrying out performance detection；
S403, gathers initial data using the scanning device, and the initial data is sent to main control computer；
S404, carries out calculating analysis using data processing equipment, and judges that the item to be detected is to the initial data
It is no to meet the requirements；
S405, detection and corresponding testing result are shown on the display apparatus.
The performance detection of above-mentioned imaging system can start daily or be started according to the cycle of setting.Above-mentioned performance detection
Item can include one or several of counting rate, photomultiplier tube state, energy jitter, flight time state, temperature.
Fig. 5 and Fig. 6 is refer to, after detection terminates, shows whether each detection meets the requirements on display interface, if meeting
Require, can show and pass through, to point out user be normally carried out patient's scanning, as shown in Figure 5；Will if there is detection not meet
Ask, can show and not pass through, and point out the unsanctioned detection of user and whether need liaison maintenance personnel to be safeguarded, such as Fig. 6
It is shown.In other embodiments, it is also possible to which other display modes point out custom system testing result with reference to modes such as voices.
Although the present invention is described with reference to current specific embodiment, those of ordinary skill in the art
It should be appreciated that the embodiment of the above is intended merely to the explanation present invention, can also do in the case of without departing from spirit of the invention
Go out various equivalent change or replacement, therefore, as long as change, the change in the spirit of the present invention to above-described embodiment
Type will all fall in the range of claims of the present invention.
Claims (10)
1. a kind of medical image system, it is characterised in that including scanning device and main control computer,
The scanning device is used to gather initial data, and the initial data can be sent to main control computer；
The main control computer includes data processing equipment and display device；
The data processing equipment can be used to carry out the medical image system performance detection based on the initial data, described
Performance detection includes at least one detection, judges whether at least one detection meets the requirements；
The display device can be used for the testing result for showing at least one detection.
2. medical image system according to claim 1, it is characterised in that the display device can be used in scanning process
It is middle to show scan progress and/or scan remaining time.
3. medical image system according to claim 1, it is characterised in that the initial data includes：The scanning sets
The standby single event data gathered under single scanning pattern and/or gather in the coincidence mode meet event data.
4. medical image system according to claim 1, it is characterised in that the performance detection item includes counting rate, light
One or several of electric multiplier tube state, energy jitter, flight time state, temperature, humidity, voltage.
5. medical image system according to claim 1, it is characterised in that also including sensor, for gathered data, institute
Stating the data that data processing equipment can be additionally used in based on sensor acquisition carries out performance detection to the medical image system.
6. medical image system according to claim 1, it is characterised in that the main control computer also includes input dress
Put, the input equipment can be used for the selected scan pattern before scanning is started, the scan pattern include passive scanning pattern with
Active scan pattern.
7. medical image system according to claim 6, it is characterised in that under the passive scanning pattern, described to sweep
Retouch data of the equipment collection from Background radiation.
8. medical image system according to claim 6, it is characterised in that under the active mode, the scanning sets
Data of the standby collection from radioactive source.
9. a kind of method for testing performance of medical image system, the medical image system include that scanning device and master control are calculated
Machine, the main control computer include data processing equipment and display device, it is characterised in that include：
Start the performance detection of the imaging system, and detection is shown on the display apparatus；
Select one or more items to be detected for intending carrying out performance detection；
Initial data is gathered using the scanning device, and the initial data is sent to into main control computer；
Calculating analysis is carried out to the initial data using data processing equipment, and judges whether the item to be detected conforms to
Ask；
Detection and corresponding testing result are shown on the display apparatus.
10. method according to claim 9, it is characterised in that the performance detection of the imaging system start daily or
Started according to the cycle of setting, the performance detection item includes counting rate, photomultiplier tube state, energy jitter, flight time
One or several of state, temperature, humidity, voltage.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107122287A (en) * | 2017-04-27 | 2017-09-01 | 上海联影医疗科技有限公司 | The method for analyzing performance and device of a kind of system |
| CN107563126A (en) * | 2017-10-25 | 2018-01-09 | 上海联影医疗科技有限公司 | Medical imaging procedure and device |
| CN107564578A (en) * | 2017-09-18 | 2018-01-09 | 上海联影医疗科技有限公司 | For the bearing calibration of medical image system, device and storage medium |
| CN109805951A (en) * | 2019-01-09 | 2019-05-28 | 上海联影医疗科技有限公司 | Methods of exhibiting, system and the storage medium of sweep time |
| CN110811663A (en) * | 2019-11-20 | 2020-02-21 | 上海联影医疗科技有限公司 | Multi-region scanning method, device, equipment and storage medium |
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