CN109692014A - X-ray dose adjusting method, storage medium and the Medical Devices of Medical Devices - Google Patents
X-ray dose adjusting method, storage medium and the Medical Devices of Medical Devices Download PDFInfo
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Abstract
The present invention relates to x-ray dose adjusting method, storage medium and the Medical Devices of Medical Devices.According to an embodiment, the x-ray dose adjusting method of Medical Devices, wherein Medical Devices include that the X-ray emitter of a generation X-ray and one receive X-ray and generates the flat panel detector of image, which comprises obtain an expected x-ray dose DR；Obtain the intrinsic brilliance DEXI that the flat panel detector generates image；Determine flat panel detector sensitivity FDS corresponding to current X-ray intensity；Practical x-ray dose DA is calculated according to the intrinsic brilliance DEXI and flat panel detector sensitivity FDS；And the practical x-ray dose DA is adjusted according to expected x-ray dose DR.The present invention can accurately calculate practical x-ray dose, to optimize the adjusting of x-ray dose.
Description
Technical field
The present invention relates to the field of medical instrument technology, the x-ray dose adjusting method of especially a kind of Medical Devices, storage
Medium and Medical Devices.
Background technique
Currently, being widely used in various detections using the Medical Devices of X-ray.In practical application, usually need
The x-ray dose of Medical Devices is adjusted and is controlled.
The Chinese invention patent application of Publication No. CN107088073A is related to a kind of X-ray production apparatus ray parameter debugging system
System.The system includes PC work station, ray control unit, X-ray generating unit, X-ray bulb and KV and mAs feedback unit.
Wherein, ray control analog output value KV_set and ray control analog output value mA_set can be adjusted automatically by parameter
Adjusting method adjusts to obtain, and can also adjust to obtain by parameter manual adjustment method.
The Chinese utility model patent of Publication No. CN201631213U is related to a kind of medical X-ray fluoroscopic machine roentgen dose X control
Voltage comparator and alarm, the output end setting connection X-ray machine ball of power supply is arranged in device processed, including power supply and X-ray machine bulb
Pipe, the input terminal of the side connection voltage comparator of X-ray machine bulb, the output end of voltage comparator connect alarm.
However, the sensitivity of flat panel detector has differences, and the prior art is often with sensitive under different x-ray intensity
Degree is fixed value to carry out relevant calculation.
Summary of the invention
In view of this, one aspect of the present invention proposes a kind of x-ray dose adjusting method of Medical Devices, on the other hand
A kind of computer storage medium is proposed, another further aspect also proposed the Medical Devices for capableing of automatic adjusument x-ray dose.
The x-ray dose adjusting method of Medical Devices according to an embodiment, wherein the Medical Devices include a production
The X-ray emitter of raw X-ray and a reception X-ray and the flat panel detector for generating image, which comprises obtain one
It is expected that x-ray dose DR；Obtain the intrinsic brilliance DEXI that the flat panel detector generates image；Determine current X-ray intensity institute
Corresponding flat panel detector sensitivity FDS；It is calculated according to the intrinsic brilliance DEXI and flat panel detector sensitivity FDS real
Border x-ray dose DA；The practical x-ray dose DA is adjusted according to expected x-ray dose DR.
Wherein, the method also includes: correspondence is formed according to different x-ray intensity and corresponding flat panel detector sensitivity
Relation table is simultaneously stored；And the mapping table is called to determine the flat panel detector corresponding to current X-ray intensity
Sensitivity.
Wherein, practical x-ray dose DA is calculated according to the following formula:
DA=DEXI/FDS.
Computer storage medium according to an embodiment is stored with program instruction, and described program instruction can be operative to
Realize either method as described above.
Medical Devices according to an embodiment can automatic adjusument x-ray dose, the Medical Devices include: an X
Ray generator, the X-ray emitter can generate X-ray and including a control units；One flat panel detector is described flat
Partitioned detector can receive X-ray and generate image；And a main control unit, the main control unit can be sent out with the X-ray
The control unit of raw device is communicated and is configured for: obtaining an expected x-ray dose DR and the flat panel detector generates
The intrinsic brilliance DEXI of image；Determine the flat panel detector sensitivity FDS corresponding to current X-ray intensity；According to described
The intrinsic brilliance DEXI and flat panel detector sensitivity FDS calculates practical x-ray dose DA；And by the practical X-ray
Dosage DA and expected x-ray dose DR is sent to the control unit of the X-ray emitter；Wherein, the X-ray emitter
Control unit is based on the practical x-ray dose DA and the X-ray emitter is adjusted in expected x-ray dose DR.
Wherein, the main control unit is additionally configured to: sensitive according to different x-ray intensity and corresponding flat panel detector
Degree forms mapping table and is stored in its storage unit；And the mapping table is called to determine current X-ray intensity institute
The corresponding flat panel detector sensitivity.
Wherein, practical x-ray dose DA is calculated according to the following formula:
DA=DEXI/FDS.
Medical Devices according to an embodiment can automatic adjusument x-ray dose, the Medical Devices include: an X
Ray generator, the X-ray emitter can generate X-ray and including a control units；One flat panel detector is described flat
Partitioned detector can receive X-ray and generate image；And a main control unit, the main control unit can be sent out with the X-ray
The control unit of raw device is communicated and is configured for: obtaining an expected x-ray dose DR and the flat panel detector generates
The intrinsic brilliance DEXI of image；And the expected x-ray dose DR and the intrinsic brilliance DEXI are sent to the X-ray
The control unit of generator；Wherein, the control unit of the X-ray emitter is configured for: determining current X-ray intensity institute
Corresponding flat panel detector sensitivity FDS；It is calculated according to the intrinsic brilliance DEXI and flat panel detector sensitivity FDS real
Border x-ray dose DA；And the X-ray is occurred based on the practical x-ray dose DA and expected x-ray dose DR
Device is adjusted.
Wherein, the control unit of the X-ray emitter is additionally configured to: according to different x-ray intensity and corresponding
Flat panel detector sensitivity forms mapping table and is stored in its storage unit；And mapping table determination is called to work as
The flat panel detector sensitivity corresponding to preceding X-ray intensity.
Wherein, practical x-ray dose DA is calculated according to the following formula:
DA=DEXI/FDS.
The prior art is often to carry out X-ray using the sensitivity data of flat panel detector under a certain fixed X-ray intensity
Dosage is adjusted, and the present invention comprehensively considers the relationship between flat panel detector sensitivity and X-ray intensity, strong using current X-ray
Flat panel detector sensitivity under degree accurately calculates practical x-ray dose, to optimize the adjusting of x-ray dose.
Detailed description of the invention
Below will detailed description of the present invention embodiment by referring to accompanying drawing, the person of ordinary skill in the art is more clear that
Above-mentioned and other feature and advantage of the invention, in attached drawing:
Fig. 1 is the schematic flow chart according to the x-ray dose adjusting method of the Medical Devices of an embodiment of the present invention.
Fig. 2 is the schematic block diagram according to the Medical Devices of an embodiment of the present invention.
Fig. 3 is the schematic block diagram according to the Medical Devices of another embodiment of the present invention.
Wherein, appended drawing reference is as follows:
100 methods
S101-S105 step
200,300 Medical Devices
201,301 X-ray emitter
21,31 control unit
202,302 flat panel detector
203,303 main control unit
23,32 storage unit
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment, identical label indicates identical part in the various figures.
Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.
To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented
Its practical structures as product.In addition, there is identical structure or function in some figures so that simplified form is easy to understand
Component only symbolically depicts one of those, or has only marked one of those.
Herein, " one ", "one" not only indicate " only this ", can also indicate the situation of " more than one ".
Referring first to the x-ray dose adjusting method that Fig. 1, Fig. 1 are according to the Medical Devices of an embodiment of the present invention
Schematic flow chart.As shown in Figure 1, x-ray dose adjusting method 100 is used for a Medical Devices, which includes a production
The X-ray emitter of raw X-ray and a reception X-ray and the flat panel detector for generating image.Method 100 includes following step
It is rapid:
Step S101: expected x-ray dose is obtained；
Step S102: the intrinsic brilliance of image is obtained；
Step S103: flat panel detector sensitivity corresponding to current X-ray intensity is determined；
Step S104: practical x-ray dose is calculated；And
Step S105: the practical x-ray dose is adjusted.
In step s101, an expected x-ray dose DR is obtained.Generally, medical staff can be set by human-computer interaction
Standby (such as touch screen, keyboard, mouse) utilizes organ option program (OGP), selects and input organ/location information to be detected,
Medical Devices can automatically determine expected x-ray dose corresponding with the organ according to prestored information from there through software systems,
And corresponding expected X-ray intensity is determined in turn.In practice, can by adjust X-ray emitter in bulb tube voltage value,
X-ray intensity caused by the parameter regulations X-ray emitters such as tube current value, turn-on time length value.
In step s 102, the X-ray and generation one that X-ray emitter generates are received by the flat panel detector of Medical Devices
Image obtains the intrinsic brilliance DEXI of the acquired image under current exposure parameter.In practice, can be by X-ray emitter before
The light concentrator of end setting adjusts the X-ray that X-ray emitter generates and gets to the regional scope on flat panel detector.Obtain image
The mode of brightness (gray value) belongs to the common knowledge of this field, herein without repeating.
In step s 103, flat panel detector sensitivity FDS corresponding to current X-ray intensity is determined.In general, not examining
How is the exposure parameter of worry actual setting, sets fixed value for flat panel detector sensitivity.However, flat panel detector is sensitive
Degree shows difference under different x-ray intensity, comprehensively considers the relationship between flat panel detector sensitivity and X-ray intensity, energy
Practical x-ray dose is enough accurately calculated, to optimize the adjusting of x-ray dose.
In further embodiment, method 100 can also include: according to different x-ray intensity and corresponding plate
Detector sensitivity forms mapping table and is stored；And the mapping table is called to determine expected X-ray intensity institute
The corresponding flat panel detector sensitivity.In other words, pre-recorded different x-ray intensity and its spirit of corresponding flat panel detector
Sensitivity forms the mapping table/mapping table of the two.
For example, can be recorded at 40KV (kilovolt) to the different x-ray intensity between 110KV in tube voltage value range
Flat panel detector sensitivity.Medical Devices can be found and the X-ray by the modes such as table look-up according to current X-ray intensity
The corresponding flat panel detector sensitivity of intensity.Wherein, belong to known in this field on how to obtain flat panel detector sensitivity
Common sense, herein without repeating.In addition, those skilled in the art can according to the actual application, for different types of
Flat panel detector records its sensitivity under different x-ray intensity respectively, thus medical when replacing different flat panel detectors
Equipment can still carry out accurate x-ray dose automatic adjusument.
Next, calculating practical X in step S104 according to intrinsic brilliance DEXI and flat panel detector sensitivity FDS and penetrating
Line dosage DA.In further embodiment, such as practical x-ray dose DA can be calculated according to the following formula:
DA=DEXI/FDS.
On this basis, in step s105, practical x-ray dose DA is adjusted according to expected x-ray dose DR.For example,
Practical x-ray dose DA can be adjusted according to the difference of expected x-ray dose DR and practical x-ray dose DA, make it
Meet expected x-ray dose DR, to meet practical application request.
It is the schematic block diagram according to the Medical Devices of an embodiment of the present invention referring to Fig. 2, Fig. 2.Such as Fig. 2 institute
Show, Medical Devices 200 being capable of automatic adjusument x-ray dose.Wherein, Medical Devices 200 include: an X-ray emitter 201,
One flat panel detector 202 and a main control unit 203.X-ray emitter 201 can generate X-ray and including a control list
Member 21.Flat panel detector 202 can receive X-ray and generate image.
Main control unit 203 can be communicated and be configured for the control unit 21 of X-ray emitter 201: obtain one
It is expected that x-ray dose DR and flat panel detector 202 generate the intrinsic brilliance DEXI of image；Corresponding to current X-ray intensity
Flat panel detector sensitivity FDS；Practical x-ray dose DA is calculated according to intrinsic brilliance DEXI and flat panel detector sensitivity FDS；
And practical x-ray dose DA and expected x-ray dose DR are sent to the control unit 21 of X-ray emitter 201.Wherein, X
The control unit 21 of ray generator 201 is based on practical x-ray dose DA and expected x-ray dose DR to X-ray emitter 201
It is adjusted.
In change mode, main control unit 203 be may be further configured for: according to different x-ray intensity and correspondence
Flat panel detector sensitivity formed and mapping table and be stored in its storage unit 23；And call the mapping table true
Surely flat panel detector sensitivity corresponding to expected X-ray intensity.
In further embodiment, practical x-ray dose DA can be calculated according to the following formula:
DA=DEXI/FDS.
For example, main control unit 203 may further include a computing unit (not shown), the computing unit can use as
Upper formula calculates practical x-ray dose DA.It is alternatively possible to by corresponding between X-ray intensity and flat panel detector sensitivity
Relationship is stored in the control unit of X-ray emitter, to carry out corresponding calculate and subsequent X-ray dosage by the control unit
It adjusts, this is described in detail below with reference to Fig. 3.
Referring to Fig. 3, Fig. 3 is the schematic block diagram according to the Medical Devices of another embodiment of the present invention.As shown in Figure 3
Embodiment in, Medical Devices 300 being capable of automatic adjusument x-ray dose.Wherein, Medical Devices 300 include: an X-ray
Generator 301, a flat panel detector 302 and a main control unit 303.X-ray emitter 301 can generate X-ray and wrap
Include a control unit 31.Flat panel detector 302 can receive X-ray and generate image.
Main control unit 303 can be communicated and be configured for the control unit 31 of X-ray emitter 301: obtain one
It is expected that x-ray dose DR and flat panel detector generate the intrinsic brilliance DEXI of image；And by the expected x-ray dose DR
The control unit 31 of X-ray emitter 301 is sent to the intrinsic brilliance DEXI.
The control unit 31 of X-ray emitter 301 is configured for: determining that plate corresponding to current X-ray intensity is visited
Survey device sensitivity FDS；Practical x-ray dose DA is calculated according to intrinsic brilliance DEXI and flat panel detector sensitivity FDS；And base
X-ray emitter 301 is adjusted in practical x-ray dose DA and expected x-ray dose DR.
Wherein, the control unit 31 of X-ray emitter 301 is additionally configured to: according to different x-ray intensity and corresponding
Flat panel detector sensitivity forms mapping table and is stored in its storage unit 32；And the mapping table is called to determine
Flat panel detector sensitivity corresponding to current X-ray intensity.
Wherein, practical x-ray dose DA is calculated according to the following formula:
DA=DEXI/FDS.
In addition, being stored with program the present invention also provides a kind of computer storage medium in the computer storage medium and referring to
It enables, described program instruction can be operative to realize either method as described above, while preceding method can be applied to this
The disclosed any Medical Devices of invention.Specifically, system or device equipped with storage medium can be provided, are situated between in the storage
It stores the software program code for realizing the function of any embodiment in above embodiment in matter, and makes the system or dress
The computer (or CPU or MPU) set reads and executes the program code being stored in a storage medium.
In this case, any one of above embodiment can be achieved in the program code itself read from storage medium
The function of embodiment, therefore the storage medium of program code and storage program code constitutes a part of the invention.
Storage medium embodiment for providing program code include floppy disk, hard disk, magneto-optic disk, CD (such as CD-ROM,
CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), tape, non-volatile memory card and ROM.Optionally, may be used
With by communication network from server computer download program code.
Further, it should be apparent that not only can be by executing program code read-out by computer, but also can pass through
Operating system for calculating hands- operation etc. is set to complete partly or completely practical operation based on the instruction of program code, thus
Realize the function of any one of above embodiment embodiment.
Further, it is to be appreciated that the program code read by storage medium is write the expansion board in insertion computer
In in set memory or write in the memory being arranged in the expanding element being connected to a computer, be then based on journey
The instruction of sequence code makes the CPU etc. being mounted on expansion board or expanding element come execution part and whole practical operations, thus
Realize the function of any embodiment in above embodiment.
The above description is only an embodiment of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of x-ray dose adjusting method of Medical Devices, the Medical Devices include that the X-ray of a generation X-ray occurs
Device and a reception X-ray and the flat panel detector for generating image, which comprises
Obtain an expected x-ray dose DR；
Obtain the intrinsic brilliance DEXI that the flat panel detector generates image；
Determine flat panel detector sensitivity FDS corresponding to current X-ray intensity；
Practical x-ray dose DA is calculated according to the intrinsic brilliance DEXI and flat panel detector sensitivity FDS；And
The practical x-ray dose DA is adjusted according to expected x-ray dose DR.
2. the x-ray dose adjusting method of Medical Devices as described in claim 1, further includes:
Mapping table is formed according to different x-ray intensity and corresponding flat panel detector sensitivity and is stored；And
The mapping table is called to determine the flat panel detector sensitivity corresponding to current X-ray intensity.
3. the x-ray dose adjusting method of Medical Devices as claimed in claim 1 or 2, wherein calculate according to the following formula real
Border x-ray dose DA:
DA=DEXI/FDS.
4. a kind of computer storage medium, program instruction is stored in the computer storage medium, described program instruction can
It is operative to realize method as claimed in any one of claims 1-3.
5. a kind of Medical Devices, the Medical Devices can automatic adjusument x-ray dose, the Medical Devices include:
One X-ray emitter, the X-ray emitter can generate X-ray and including a control units；
One flat panel detector, the flat panel detector can receive X-ray and generate image；And
One main control unit, the main control unit can be communicated and are configured for the control unit of the X-ray emitter:
It obtains an expected x-ray dose DR and the flat panel detector generates the intrinsic brilliance DEXI of image；
Determine flat panel detector sensitivity FDS corresponding to current X-ray intensity；
Practical x-ray dose DA is calculated according to the intrinsic brilliance DEXI and flat panel detector sensitivity FDS；And
The practical x-ray dose DA and expected x-ray dose DR are sent to the control unit of the X-ray emitter；
Wherein, the control unit of the X-ray emitter is based on the practical x-ray dose DA and expected DR pairs of x-ray dose
The X-ray emitter is adjusted.
6. Medical Devices as claimed in claim 5, wherein the main control unit is additionally configured to:
Mapping table is formed according to different x-ray intensity and corresponding flat panel detector sensitivity and is stored in its storage unit
In；And
The mapping table is called to determine the flat panel detector sensitivity corresponding to current X-ray intensity.
7. such as Medical Devices described in claim 5 or 6, wherein calculate practical x-ray dose DA according to the following formula:
DA=DEXI/FDS.
8. a kind of Medical Devices, the Medical Devices can automatic adjusument x-ray dose, the Medical Devices include:
One X-ray emitter, the X-ray emitter can generate X-ray and including a control units；
One flat panel detector, the flat panel detector can receive X-ray and generate image；And
One main control unit, the main control unit can be communicated and are configured for the control unit of the X-ray emitter:
It obtains an expected x-ray dose DR and the flat panel detector generates the intrinsic brilliance DEXI of image；And
The expected x-ray dose DR and the intrinsic brilliance DEXI are sent to the control unit of the X-ray emitter；
Wherein, the control unit of the X-ray emitter is configured for:
Determine flat panel detector sensitivity FDS corresponding to current X-ray intensity；
Practical x-ray dose DA is calculated according to the intrinsic brilliance DEXI and flat panel detector sensitivity FDS；And
The X-ray emitter is adjusted based on the practical x-ray dose DA and the expected x-ray dose DR.
9. Medical Devices as claimed in claim 8, wherein the control unit of the X-ray emitter is additionally configured to:
Mapping table is formed according to different x-ray intensity and corresponding flat panel detector sensitivity and is stored in its storage unit
In；And
The mapping table is called to determine the flat panel detector sensitivity corresponding to current X-ray intensity.
10. Medical Devices as claimed in claim 8 or 9, wherein calculate practical x-ray dose DA according to the following formula:
DA=DEXI/FDS.
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| CN201710998730.9A CN109692014A (en) | 2017-10-24 | 2017-10-24 | X-ray dose adjusting method, storage medium and the Medical Devices of Medical Devices |
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| CN201710998730.9A CN109692014A (en) | 2017-10-24 | 2017-10-24 | X-ray dose adjusting method, storage medium and the Medical Devices of Medical Devices |
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Cited By (1)
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Application publication date: 20190430 |