CN109247948A - It is a kind of that imaging system is accurately measured based on X-ray - Google Patents
It is a kind of that imaging system is accurately measured based on X-ray Download PDFInfo
- Publication number
- CN109247948A CN109247948A CN201811096304.7A CN201811096304A CN109247948A CN 109247948 A CN109247948 A CN 109247948A CN 201811096304 A CN201811096304 A CN 201811096304A CN 109247948 A CN109247948 A CN 109247948A
- Authority
- CN
- China
- Prior art keywords
- ray
- thickness
- imaging system
- module
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003384 imaging method Methods 0.000 title claims abstract description 40
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000004364 calculation method Methods 0.000 claims description 12
- 238000011897 real-time detection Methods 0.000 claims description 10
- 230000009977 dual effect Effects 0.000 claims description 4
- 241000208340 Araliaceae Species 0.000 claims description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 2
- 235000008434 ginseng Nutrition 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 34
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000002604 ultrasonography Methods 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 6
- 241000894007 species Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 241001269238 Data Species 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 241000406668 Loxodonta cyclotis Species 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 230000005461 Bremsstrahlung Effects 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000289 photo-effect Toxicity 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- 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
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/542—Control of apparatus or devices for radiation diagnosis involving control of exposure
- A61B6/544—Control of apparatus or devices for radiation diagnosis involving control of exposure dependent on patient size
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- X-Ray Techniques (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
Imaging system is accurately measured based on X-ray the invention discloses a kind of, including the thickness measure module for real-time measurement irradiation object thickness value；Further include the thickness value for receiving the transmission of thickness measure module, and thickness value is brought into the EI critical field table being equipped with and obtain the corresponding exposure parameter X-ray image-forming module that then transmitting X-ray is imaged.The technology that the present invention passes through x-ray radiation quality needed for a kind of entirely different, integrated, full automatic, inexpensive, real-time and precise acquisition sufferer to be captured, pass through system other, independently of original X-ray image chain, use visible light, near visible, ultrasound etc., obtain sufferer figure data, and corresponding exposure parameter is obtained by looking into " EI critical field table ", instruct X-ray bulb to emit the X-ray of corresponding radiation quality.
Description
Technical field
The invention belongs to X-ray technical field of imaging, and in particular to a kind of imaging that exposure parameter is adjusted by thickness value
System.
Background technique
X-ray is also known as roentgen-ray, it is a kind of invisible ray, but certain compounds can be made to generate fluorescence
Or keep photographic negative photosensitive；It does not deflect in an electrical or magnetic field, and reflection, refraction, interference, diffraction etc. can occur；It has
There is the ability of penetrating material, but its penetrating power is different to different material；Molecule or atom can be made to ionize；Have and destroys cell work
With human body different tissues are different for the susceptibility of X-ray, and undermined degree is also different.Therefore, X-ray can make human body exist
Image is formed on fluorescent screen or on film, is the difference for having density and thickness based on tissue.Why X-ray can make human body
Image is formed on fluorescent screen or on film, is on the one hand the characteristic based on x-ray, i.e. its penetrability, fluorescent effect and photoeffect；
It on the other hand is the difference for having density and thickness based on tissue.Since there are this difference, when x-ray is various not through human body
When with institutional framework, its absorbed degree is different, so the x-ray amount on arrival fluorescent screen or film, that is, variant.In this way, glimmering
The different image of black and white contrast is just formed on screen or film.
For x-ray radiation quality needed for accurately obtaining sufferer to be captured, it is mainly reflected in the instrumentation tubes of X-ray bulb
Voltage kvp and operating current product mAs.The former determines the energy level for the X-ray that X-ray bulb issues, higher tube voltage
Corresponding higher X-ray energy level, also just corresponds to stronger X-ray penetration power；The latter is the product of electric current and time, jointly
Determine the amount for issuing X-ray, higher electric current, longer time, corresponding more quantity of X-rays X) demand it is long-standing,
It determines: X-ray image quality；The amount for the X-ray that sufferer is received.For the former, suitable penetration power, it is suitable to mix
X-ray amount could generate suitable (clearly, accurately) image, diagnostician is facilitated to diagnose；For the latter, higher energy
Grade and more quantity of X-rays X can generate bigger injury to patient naturally.
In the prior art, have and to instruct adjustment exposure parameter indirectly by using ionisation chamber measurement X-ray uptake.
The technology is located at suction of the ionisation chamber of detector (X-ray detection reception device) different direction to X-ray by measuring muti-piece
Receipts amount, comes whether " informing " high pressure generator (energy generating apparatus) needs to continue to energize: if the uptake of ionisation chamber is lower than
Some threshold value illustrates that amount of radiation is inadequate, then " informs " that high pressure generator continues to energize；If the uptake of ionisation chamber reaches or greatly
In the threshold value, illustrates that amount of radiation is sufficient or excessive, then " inform " that high pressure generator stops energy supply.The technology solves part and asks
Topic: can be with real-time control x-ray radiation amount, i.e. the operating current product mAs of X-ray bulb, but it is unable to control its radiation quality,
Work tube voltage kvp, and ionisation chamber involves great expense, easy to damage, and maintenance cost is high, the profession of diagnostician is required it is high,
This status for only possessing current practitioner relatively low total quality is acid test.
Summary of the invention
In order to solve can not accurately to obtain accurately exposure parameter according to the actual situation in the prior art and can only be with operation
The experience adjustments of personnel lead to the problem that efficiency is lower and precision is unstable, and the present invention, which provides one kind, to be irradiated by examinations
Object thickness value simultaneously finds the X-ray imaging that corresponding parameter carries out accurate imaging according to the EI critical field table being previously written in system
System.
The technical scheme adopted by the invention is as follows: it is a kind of that imaging system is accurately measured based on X-ray, comprising:
Thickness measure module for real-time measurement irradiation object thickness value；
Further include the thickness value for receiving the transmission of thickness measure module, and thickness value is brought into the EI critical field being equipped with
Corresponding exposure parameter is obtained in table then emits the X-ray image-forming module that X-ray is imaged.
Wherein, the X-ray image-forming module is a complete X-ray imaging device, and has been previously written EI critical field
Table.Existing X-ray imaging device needs to adjust radiation parameters when emitting X-ray, to reach optimal exposure dose.It is existing
There is technology when adjusting radiation parameters, it usually can be according to the experience of operator, and according to different irradiation object and irradiation portion
Position is adjusted, so that it is determined that a value range.
The present invention, which passes through the thickness measure module being individually equipped with, can realize the irradiation area of automatic real-time detection irradiation object
Center thickness value, and will test result and be sent in X-ray image-forming module, by transferring EI critical field table and according to the thickness of input
Angle value finds corresponding radiation parameters, then adjusts irradiation means according to corresponding radiation parameters and carries out X-ray irradiation imaging.This is
It unites rapidly and efficiently, and accuracy rate with higher and precision, it may be unnecessary to individual photos under the guidance of specialist.
Wherein, the EI critical field table is the mark for different irradiation objects and then according to specific image catenary system
Quasi- radiation quality RQA5 and equally it is a large amount of clinical datas of specific image catenary system and establishes.Heretofore described irradiation
Object is including but not limited to the mankind and other biological.And it can be separately provided in advance according to mass data data for different species
There is corresponding EI critical field table, the different parts that the species are corresponded in the table have corresponding sublist again, to reach accurate finger
Lead the effect of adjustment radiation parameters.And the independent variable in each sublist is thickness value, unit CM, and dependent variable is irradiation ginseng
Number.That is, the EI critical field table is similar to a kind of standard curve, but because being not present between thickness value and radiation parameters
Linear relationship, and radiation parameters have it is multiple, therefore it is true for different thickness by clinical summary of experience and Standard Ratio quality
A fixed parameter value.
Further, the emission parameter includes work tube voltage and work tube current product.Here radiation parameters are defined,
Wherein, the work tube voltage is the voltage of the cathode filament of bulb and anode target both ends in existing X-ray equipment, main to rise
To the effect that the electron excitation acceleration on filament is flowed to anode target.That is, work tube voltage therein determines the X-
The matter of ray, that is, penetration power, suitable penetration power are to generate the premise of accurate clear image.And the work tube current
Product is the amount of X-ray, is the product of electric current and irradiation time.Theoretically generally operating current is adjusted to highest, but different
Its maximum current of equipment numerical value it is different, then irradiation time is adjusted to compensate to reach most suitable electric current product.Pass through control
Instrumentation tubes voltage and current processed product can then determine total dose of radiation before irradiation, thus after avoiding by detector come
The uptake of real-time detection X-ray, more safe and convenient, while precision with higher.
Further, the X-ray image-forming module includes the control unit connecting with thickness measure module, described control unit
It is interior with EI critical field table.The control unit is the control circuit being separately provided, including processor and memory, described
EI critical field table is stored in memory, and the EI standard that processor will call in memory after the thickness Value Data received
The data of range table carry out the data packet output for being converted to exposure parameter.
Further, the X-ray image-forming module further includes that high pressure generator, X-ray bulb, light concentrator and X-ray receive imaging
Module, described control unit, which connect with high pressure generator and controls high pressure generator, provides electric energy, the X-ray ball to X-ray bulb
By being arranged in, the light concentrator adjustment of X-ray bulb transmitting terminal is directed across irradiation object to the X-ray of pipe transmitting and entrance X-ray connects
It receives and is imaged in image-forming module.Wherein, the high-voltage output end of high pressure generator is clipped in cathode filament and anode target both ends respectively,
There is provided a high voltage electric field makes electronics acceleration active on filament flow to anode target, forms the electron stream of a high speed, bombardment sun
After the target surface of pole, 99% is converted into heat, and 1% generates X-ray due to bremsstrahlung.
Further, it is flat panel detector that the X-ray, which receives image-forming module,.Here entire X-ray image-forming module is limited to
Digital imaging apparatus, the flat panel detector are a kind of special sensitive component, can receive X-ray and carry out
Digital imagery.It not only can be improved image quality compared to film, but also the dose of radiation of X-ray can be reduced.
Further, the thickness measure module include the distance measuring unit coplanar with the X-ray transmitting terminal of X-ray image-forming module and
The thickness calculation unit connecting with distance measuring unit, the thickness calculation unit are calculated according to the distance value of distance measuring unit real-time detection
It obtains the thickness value of irradiation object and inputs in X-ray image-forming module.
It is arrived it is worth noting that end occurs for the X-ray that the thickness measure module mainly passes through calculating X-ray image-forming module
Spacing between irradiation object surface.Because when irradiation object is fixed target, irradiation object can be fixed on moveable flat
On plate, and it is moved to suitable position, the cross target center on light concentrator is directed at irradiation position.Irradiation object bottom is fitted at this time
On plate, and light concentrator to the spacing between plate be fixed value: D1.And light concentrator is to the cross target center subpoint of irradiation object
Between spacing be D2, the thickness value of measurement point is H, both obtains calculation formula: H=D1-D2.
That is, the thickness measure module mainly measures light concentrator between irradiation object mark point
Away from, then by real-time detection to distance values be sent in computing unit and carry out that thickness value is calculated by above-mentioned formula.
Further, the distance measuring unit is ultrasonic range finder.Ultrasonic distance measurement principle is in ultrasonic transmission device
Ultrasonic wave is issued, its basis is time difference when receiver is connected to ultrasonic wave, similar to radar range finding principle.Ultrasonic wave transmitting
Device emits ultrasonic wave to a direction, starts timing while emission time, ultrasonic wave is propagated in air, encounters barrier on the way
Object is hindered just to return to come immediately, ultrasonic receiver receives back wave and just stops timing immediately.
Further, the distance measuring unit is laser range finder.Laser range finder is similar with the principle of ultrasonic range finder,
It is detected using concentrated light, calculates distance value also according to the time difference back and forth.
Further, the distance measuring unit is dual camera range finder module.Wherein, the dual camera range finder module is
Same object is shot simultaneously using two coplanar cameras and two image procossings obtained according to shooting are carried out apart from survey
It calculates.Pass through accurately calibration calibration first, it can be deduced that the focal length of two cameras, distortion factor etc., referred to as intrinsic parameter, with
And the relative rotation between two cameras, displacement etc., referred to as outer parameter.
By distortions correction, the first-class correcting process of revolving mirror, the image frame of final two cameras is in approximately the same plane
On, and eliminate radial distortion and its picture is made to be standard rectangular.The camera of left and right two shoots same object, obtains two width figures of left and right
Picture, due to having position difference between two cameras, the two images obtained have nuance, can will be left after overmatching
It corresponds about the same point of real-world object in right image.A secondary new image is obtained in this way, wherein each pixel
Value indicates that the distance of point corresponding points into right picture in left picture, the distance are referred to as parallax, this new images is known as parallax
Figure.Disparity map, by Epipolar geometry, can calculate real-world object to left and right camera light together with the camera intrinsic parameter obtained before
The vertical range figure of plane, referred to as depth map where the heart.Thickness measurements can simply by use range-measurement system obtain
The distance that background distance subtracts object under test obtains, and the use of middle background distance is constant in equipment, so problem finally simplifies
For the distance for obtaining object under test.
Further, the distance measuring unit is arranged in light concentrator and the calculating starting point of the distance measuring unit and light concentrator
Emission end surface is coplanar.Wherein, thickness value required for the present invention refers to according to the outer of light concentrator emitting facet to irradiation object
What the spacing between portion's mark point was calculated indirectly, and distance measuring unit not only needs at the X-ray emitting facet with light concentrator
In the same plane, and the plane is parallel with the fixed planar surface of irradiation object, can be by the way that the survey of side is arranged in
Accurate distance values are obtained away from unit.The result is optimized by the software in later period again, passes through the side of successive ignition
Formula infinite tendency and exact value.
The invention has the benefit that
(1) present invention by a kind of entirely different, integrated, full automatic, inexpensive, real-time and precise acquisition to
The technology of x-ray radiation quality needed for shooting sufferer is used by system other, independently of original X-ray image chain
Visible light, near visible, ultrasound etc. obtain sufferer figure data, and obtain corresponding exposure by looking into " EI critical field table "
Parameter instructs X-ray bulb to emit the X-ray of corresponding radiation quality.
(2) the configuration of the present invention is simple can be reequiped directly on existing X-ray imaging device, thus with higher
Adaptability, and cost is relatively low.
(3) present invention can either be such that figure measurement and the exposure process of script is perfectly combined, phase it is not necessary that other steps are added
Compared with existing uptake of the ionisation chamber to X-ray for being located at detector different direction by measuring muti-piece, carry out " informing " high pressure
The method whether generator needs to continue energy supply, efficiency of the present invention is higher, and manufacturing cost and use cost is lower.
(4) component of the measurable depth information function of offer of the invention is relatively inexpensive and convenient for safeguarding, and the present invention
It is very fast to Depth Information Acquistion speed, and precision is high, it, can further rejecting abnormalities measurement by being embedded in the algorithm of processor
It is worth and promotes precision；It is taken at the Standard Ratio quality RQA5 that specific Image chain is established by foundation " EI critical field table ", and
It is revised by a large amount of clinical datas, it is ensured that the accurate acquisition of the corresponding exposure parameter of patient size.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment does further explaination to the present invention.
Embodiment 1:
Existing X-ray imaging device needs to adjust radiation parameters when emitting X-ray, to reach optimal irradiation agent
Amount.The prior art, usually can be according to the experience of operator, and according to different irradiation object and photograph when adjusting radiation parameters
It penetrates position to be adjusted, so that it is determined that a value range.
The present embodiment provides a kind of to accurately measure imaging system based on X-ray, including thick for real-time measurement irradiation object
The thickness measure module of angle value；Further include the thickness value for receiving the transmission of thickness measure module, and thickness value is brought into and is equipped with
EI critical field table in obtain corresponding exposure parameter and then emit the X-ray image-forming module that is imaged of X-ray.X-ray imaging
Module is a complete X-ray imaging device, and has been previously written EI critical field table.
The present embodiment pass through the thickness measure module that is individually equipped with, it can be achieved that automatic real-time detection irradiation object irradiated region
Domain center thickness value, and will test result and be sent in X-ray image-forming module, by transferring EI critical field table and according to input
Thickness value finds corresponding radiation parameters, then adjusts irradiation means according to corresponding radiation parameters and carries out X-ray irradiation imaging.It should
System rapidly and efficiently, and accuracy rate with higher and precision, it may be unnecessary to individual photos under the guidance of specialist.
Embodiment 2:
Imaging system that the present embodiment provides a kind of based on X-ray accurately measure, including thickness measure module and for receiving
The thickness value that thickness measure module is sent, and thickness value is brought into the EI critical field table being equipped with and obtain corresponding exposure parameter
Then the X-ray image-forming module that transmitting X-ray is imaged.X-ray image-forming module is a complete X-ray imaging device, and pre-
First it is written with EI critical field table.
Wherein, emission parameter includes work tube voltage and work tube current product.
Work tube voltage is the voltage of the cathode filament of bulb and anode target both ends in existing X-ray equipment, can be by filament
On electron excitation acceleration flow to anode target.Work tube voltage determines the matter of the X-ray, that is, penetration power.
The tube current product that works is the amount of X-ray, is the product of electric current and irradiation time.Theoretically generally work electricity
Stream is adjusted to highest, but its maximum current numerical value of different equipment is different, then irradiation time is adjusted to compensate to reach most
Suitable electric current product.Total dose of radiation can be then determined before irradiation by control instrumentation tubes voltage and current product, thus
By detector come the uptake of real-time detection X-ray, more safe and convenient after avoiding, while precision with higher.
X-ray image-forming module includes the control unit connecting with thickness measure module, and described control unit is interior with EI standard
Range table.The control unit is the control circuit being separately provided, including processor and memory, the EI critical field table
Be stored in memory, and processor by after the thickness Value Data received call memory in EI critical field table data
Carry out the data packet output for being converted to exposure parameter.
X-ray image-forming module further includes that high pressure generator, X-ray bulb, light concentrator and X-ray receive image-forming module, the control
Unit, which connect with high pressure generator and controls high pressure generator, provides electric energy, the X-ray of the X-ray bulb transmitting to X-ray bulb
By be arranged in X-ray bulb transmitting terminal light concentrator adjust be directed across irradiation object and enter X-ray receive image-forming module in into
Row imaging.
The high-voltage output end of high pressure generator is clipped in cathode filament and anode target both ends respectively, and providing a high voltage electric field makes
The acceleration of active electronics flows to anode target on filament, forms the electron stream of a high speed, bombards after anode target surface since a piece of wood serving as a brake to halt a carriage causes spoke
Penetrate generation X-ray.
Wherein, the EI critical field table is the mark for different irradiation objects and then according to specific image catenary system
Quasi- radiation quality RQA5 and equally it is a large amount of clinical datas of specific image catenary system and establishes.Photograph described in the present embodiment
Object is penetrated including but not limited to the mankind and other biological.And it can individually be set according to mass data data for different species in advance
It is equipped with corresponding EI critical field table, the different parts that the species are corresponded in the table have corresponding sublist again, to reach accurate
The effect of guidance adjustment radiation parameters.And the independent variable in each sublist is thickness value, unit CM, and dependent variable is irradiation
Parameter.That is, the EI critical field table is similar to a kind of standard curve, but because not depositing between thickness value and radiation parameters
In linear relationship, and radiation parameters have multiple, therefore are directed to different thickness by clinical summary of experience and Standard Ratio quality
Determine a parameter value.
Embodiment 3:
The present embodiment is that restriction is optimized on the basis of above-described embodiment 2, and it is flat that the X-ray, which receives image-forming module,
Partitioned detector.
And thickness measure module includes the distance measuring unit and and distance measuring unit coplanar with the X-ray transmitting terminal of X-ray image-forming module
Irradiation pair is calculated according to the distance value of distance measuring unit real-time detection in the thickness calculation unit of connection, the thickness calculation unit
The thickness value of elephant simultaneously inputs in X-ray image-forming module.
Thickness measure module is mainly to pass through the X-ray generation end for calculating X-ray image-forming module between irradiation object surface
Spacing.Because irradiation object can be fixed on moveable plate, and be moved to suitable position when irradiation object is fixed target
It sets, the cross target center on light concentrator is directed at irradiation position.Irradiation object bottom is fitted on plate at this time, and light concentrator is to flat
Spacing between plate is fixed value: D1.And light concentrator is D2 to the spacing between the cross target center subpoint of irradiation object, is measured
The thickness value of point is H, both obtains calculation formula: H=D1-D2.
Embodiment 4:
The present embodiment be optimize restriction on the basis of above-described embodiment 3, as shown in Figure 1, the X-ray receive at
As module is flat panel detector.The distance measuring unit is ultrasonic range finder.Ultrasonic distance measurement principle is to emit to fill in ultrasonic wave
Sending ultrasonic wave is set, its basis is time difference when receiver is connected to ultrasonic wave, similar to radar range finding principle.Ultrasonic wave hair
Emitter emits ultrasonic wave to a direction, starts timing while emission time, ultrasonic wave is propagated in air, is encountered on the way
Barrier just returns immediately, and ultrasonic receiver receives back wave and just stops timing immediately.
Embodiment 5:
Imaging system that the present embodiment provides a kind of based on X-ray accurately measure, including thickness measure module and for receiving
The thickness value that thickness measure module is sent, and thickness value is brought into the EI critical field table being equipped with and obtain corresponding exposure parameter
Then the X-ray image-forming module that transmitting X-ray is imaged.X-ray image-forming module is a complete X-ray imaging device, and pre-
First it is written with EI critical field table.
Emission parameter includes work tube voltage and work tube current product.The tube voltage that works is bulb in existing X-ray equipment
Cathode filament and anode target both ends voltage, can by the electron excitation on filament accelerate flow to anode target.Work tube voltage is determined
The matter of the X-ray, that is, penetration power are determined.
X-ray image-forming module includes the control unit connecting with thickness measure module, and described control unit is interior with EI standard
Range table.
The control unit is the control circuit being separately provided, including processor and memory, the EI critical field
Table is stored in memory, and processor by after the thickness Value Data received call memory in EI critical field table number
According to the data packet output for carrying out being converted to exposure parameter.
X-ray image-forming module further includes that high pressure generator, X-ray bulb, light concentrator and X-ray receive image-forming module, the control
Unit, which connect with high pressure generator and controls high pressure generator, provides electric energy, the X-ray of the X-ray bulb transmitting to X-ray bulb
By be arranged in X-ray bulb transmitting terminal light concentrator adjust be directed across irradiation object and enter X-ray receive image-forming module in into
Row imaging.
The high-voltage output end of high pressure generator is clipped in cathode filament and anode target both ends respectively, and providing a high voltage electric field makes
The acceleration of active electronics flows to anode target on filament, forms the electron stream of a high speed, bombards after anode target surface since a piece of wood serving as a brake to halt a carriage causes spoke
Penetrate generation X-ray.
And thickness measure module includes the distance measuring unit and and distance measuring unit coplanar with the X-ray transmitting terminal of X-ray image-forming module
Irradiation pair is calculated according to the distance value of distance measuring unit real-time detection in the thickness calculation unit of connection, the thickness calculation unit
The thickness value of elephant simultaneously inputs in X-ray image-forming module.
The distance measuring unit is laser range finder.Laser range finder is similar with the principle of ultrasonic range finder, using boundling
Light is detected, and calculates distance value also according to the time difference back and forth.
Embodiment 6:
Imaging system that the present embodiment provides a kind of based on X-ray accurately measure, including thickness measure module and for receiving
The thickness value that thickness measure module is sent, and thickness value is brought into the EI critical field table being equipped with and obtain corresponding exposure parameter
Then the X-ray image-forming module that transmitting X-ray is imaged.X-ray image-forming module is a complete X-ray imaging device, and pre-
First it is written with EI critical field table.
Emission parameter includes work tube voltage and work tube current product.The tube voltage that works is bulb in existing X-ray equipment
Cathode filament and anode target both ends voltage, can by the electron excitation on filament accelerate flow to anode target.Work tube voltage is determined
The matter of the X-ray, that is, penetration power are determined.
X-ray image-forming module includes the control unit connecting with thickness measure module, and described control unit is interior with EI standard
Range table.
The control unit is the control circuit being separately provided, including processor and memory, the EI critical field
Table is stored in memory, and processor by after the thickness Value Data received call memory in EI critical field table number
According to the data packet output for carrying out being converted to exposure parameter.
X-ray image-forming module further includes that high pressure generator, X-ray bulb, light concentrator and X-ray receive image-forming module, the control
Unit, which connect with high pressure generator and controls high pressure generator, provides electric energy, the X-ray of the X-ray bulb transmitting to X-ray bulb
By be arranged in X-ray bulb transmitting terminal light concentrator adjust be directed across irradiation object and enter X-ray receive image-forming module in into
Row imaging.The high-voltage output end of high pressure generator is clipped in cathode filament and anode target both ends respectively, and providing a high voltage electric field makes
The acceleration of active electronics flows to anode target on filament, forms the electron stream of a high speed, bombards after anode target surface since a piece of wood serving as a brake to halt a carriage causes spoke
Penetrate generation X-ray.
And thickness measure module includes the distance measuring unit and and distance measuring unit coplanar with the X-ray transmitting terminal of X-ray image-forming module
Irradiation pair is calculated according to the distance value of distance measuring unit real-time detection in the thickness calculation unit of connection, the thickness calculation unit
The thickness value of elephant simultaneously inputs in X-ray image-forming module.The distance measuring unit is dual camera range finder module.
And distance measuring unit is arranged in light concentrator and the calculating starting point of the distance measuring unit and light concentrator emission end surface
It is coplanar.Wherein, thickness value required for the present embodiment refers to the external label point according to light concentrator emitting facet to irradiation object
Between spacing be calculated indirectly, and distance measuring unit not only need to be in the X-ray emitting facet of light concentrator it is same flat
On face, and the plane is parallel with the fixed planar surface of irradiation object, can be obtained by the way that the distance measuring unit of side is arranged in
To accurate distance values.The result is optimized by the software in later period again, is infinitely become by way of successive ignition
Closely and exact value.
The workflow of whole system is as follows: it is real by way of obtaining image depth information to first pass through thickness measure module
When accurately measure the figure of sufferer to be captured, Fast Median Filtering is done in time series and the progressive reduction measurement of iteration misses
Difference eliminates abnormal measures, and transmits the measured value to processor.Processor is by searching for patient's body in " EI critical field table "
Accurately work tube voltage kvp and work tube current product mAs needed for the corresponding X-ray bulb of type, and by required exposure parameter
Pass to high pressure generator.
And high pressure generator receives required exposure parameter, the specified voltage of exposure parameter needed for issuing, electric current product value
(usually being reached with the attainable maximum current of high pressure generator institute multiplied by the most short working time).And X-ray bulb is specified
Under voltage and current, at the appointed time in issue the X-ray of corresponding radiation quality.Suitable spoke is finally received by flat panel detector again
Penetrate the X-ray of quality, clear and accurate imaging.
Wherein, the EI critical field table is the mark for different irradiation objects and then according to specific image catenary system
Quasi- radiation quality RQA5 and equally it is a large amount of clinical datas of specific image catenary system and establishes.Photograph described in the present embodiment
Object is penetrated including but not limited to the mankind and other biological.And it can individually be set according to mass data data for different species in advance
It is equipped with corresponding EI critical field table, the different parts that the species are corresponded in the table have corresponding sublist again, to reach accurate
The effect of guidance adjustment radiation parameters.And the independent variable in each sublist is thickness value, unit CM, and dependent variable is irradiation
Parameter.That is, the EI critical field table is similar to a kind of standard curve, but because not depositing between thickness value and radiation parameters
In linear relationship, and radiation parameters have multiple, therefore are directed to different thickness by clinical summary of experience and Standard Ratio quality
Determine a parameter value.
And using the EI critical field table for being directed to domestic pets foundation, including table one, two and of table in the present embodiment
Table three.
Wherein table one is Standard Ratio quality RQA5, specific as follows:
And second table is the applicable thickness E I critical field table in four limbs and head, it is specific as follows:
And table three is then the thickness E I critical field table of chest, it is specific as follows:
It above only include the exposure parameter of segment thickness value, and specific parameter list can be carried out according to different irradiation objects
Adjustment, and a set of thickness E I critical field table for being suitable for the object type is established, to provide more accurate exposure parameter
Data.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are each under the inspiration of the present invention
The product of kind form.Above-mentioned specific embodiment should not be understood the limitation of pairs of protection scope of the present invention, protection of the invention
Range should be subject to be defined in claims, and specification can be used for interpreting the claims.
Claims (10)
1. a kind of accurately measure imaging system based on X-ray characterized by comprising
Thickness measure module for real-time measurement irradiation object thickness value；
Further include the thickness value for receiving the transmission of thickness measure module, and thickness value is brought into the EI critical field table being equipped with
It obtains corresponding exposure parameter and then emits the X-ray image-forming module that X-ray is imaged.
A kind of imaging system is accurately measured based on X-ray 2. according to claim 1, it is characterised in that: the transmitting ginseng
Number includes work tube voltage and work tube current product.
A kind of imaging system is accurately measured based on X-ray 3. according to claim 1 or 2, it is characterised in that: the X-ray
Image-forming module includes the control unit connecting with thickness measure module, and described control unit is interior with EI critical field table.
A kind of imaging system is accurately measured based on X-ray 4. according to claim 3, it is characterised in that: the X-ray imaging
Module further includes that high pressure generator, X-ray bulb, light concentrator and X-ray receive image-forming module, described control unit and high pressure generator
It connects and controls high pressure generator and provide electric energy to X-ray bulb, the X-ray of the X-ray bulb transmitting is by being arranged in X-ray ball
The light concentrator adjustment of pipe transmitting terminal is directed across irradiation object and enters in X-ray reception image-forming module and is imaged.
A kind of imaging system is accurately measured based on X-ray 5. according to claim 4, it is characterised in that: the X-ray receives
Image-forming module is flat panel detector.
A kind of imaging system is accurately measured based on X-ray 6. according to claim 1 or 2, it is characterised in that: the thickness
Measurement module includes the distance measuring unit coplanar with the X-ray transmitting terminal of X-ray image-forming module and the THICKNESS CALCULATION that connect with distance measuring unit
The thickness value of irradiation object and defeated is calculated according to the distance value of distance measuring unit real-time detection in unit, the thickness calculation unit
Enter in X-ray image-forming module.
A kind of imaging system is accurately measured based on X-ray 7. according to claim 6, it is characterised in that: the ranging list
Member is ultrasonic range finder.
A kind of imaging system is accurately measured based on X-ray 8. according to claim 6, it is characterised in that: the ranging list
Member is laser range finder.
A kind of imaging system is accurately measured based on X-ray 9. according to claim 6, it is characterised in that: the ranging list
Member is dual camera range finder module.
A kind of imaging system is accurately measured based on X-ray 10. according to claim 9, it is characterised in that: the ranging list
Member is arranged in light concentrator and the calculating starting point of the distance measuring unit is coplanar with light concentrator emission end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811096304.7A CN109247948A (en) | 2018-09-19 | 2018-09-19 | It is a kind of that imaging system is accurately measured based on X-ray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811096304.7A CN109247948A (en) | 2018-09-19 | 2018-09-19 | It is a kind of that imaging system is accurately measured based on X-ray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109247948A true CN109247948A (en) | 2019-01-22 |
Family
ID=65047798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811096304.7A Pending CN109247948A (en) | 2018-09-19 | 2018-09-19 | It is a kind of that imaging system is accurately measured based on X-ray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109247948A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111528876A (en) * | 2020-04-23 | 2020-08-14 | 上海逸动医学科技有限公司 | X-ray intelligent control system based on Internet of things |
| CN111986822A (en) * | 2020-07-27 | 2020-11-24 | 哈尔滨工业大学 | X-ray characterization detector precision adjustment carrying mechanism |
| CN112998733A (en) * | 2021-02-19 | 2021-06-22 | 苏州晟诺医疗科技有限公司 | CT scanning method and device and CT scanner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050069086A1 (en) * | 2003-04-01 | 2005-03-31 | Analogic Corporation | Dynamic exposure control in radiography |
| CN101074939A (en) * | 2007-06-29 | 2007-11-21 | 丹东华日理学电气有限公司 | Method and apparatus for inspecting and controlling X-ray probe |
| CN107582085A (en) * | 2017-09-14 | 2018-01-16 | 广州七喜医疗设备有限公司 | A kind of apparatus and method of intelligent digital X-ray exposure control |
| US20180116622A1 (en) * | 2016-10-28 | 2018-05-03 | Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.O.C. | Automatic exposure control system for a digital x-ray imaging device and method thereof |
| CN209391956U (en) * | 2018-09-19 | 2019-09-17 | 晓智科技（成都）有限公司 | It is a kind of that imaging system is accurately measured based on X-ray |
-
2018
- 2018-09-19 CN CN201811096304.7A patent/CN109247948A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050069086A1 (en) * | 2003-04-01 | 2005-03-31 | Analogic Corporation | Dynamic exposure control in radiography |
| CN101074939A (en) * | 2007-06-29 | 2007-11-21 | 丹东华日理学电气有限公司 | Method and apparatus for inspecting and controlling X-ray probe |
| US20180116622A1 (en) * | 2016-10-28 | 2018-05-03 | Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.O.C. | Automatic exposure control system for a digital x-ray imaging device and method thereof |
| CN107582085A (en) * | 2017-09-14 | 2018-01-16 | 广州七喜医疗设备有限公司 | A kind of apparatus and method of intelligent digital X-ray exposure control |
| CN209391956U (en) * | 2018-09-19 | 2019-09-17 | 晓智科技（成都）有限公司 | It is a kind of that imaging system is accurately measured based on X-ray |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111528876A (en) * | 2020-04-23 | 2020-08-14 | 上海逸动医学科技有限公司 | X-ray intelligent control system based on Internet of things |
| CN111986822A (en) * | 2020-07-27 | 2020-11-24 | 哈尔滨工业大学 | X-ray characterization detector precision adjustment carrying mechanism |
| CN112998733A (en) * | 2021-02-19 | 2021-06-22 | 苏州晟诺医疗科技有限公司 | CT scanning method and device and CT scanner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2774541B1 (en) | Mobile X-ray imaging apparatus and control method for the same | |
| CN109247948A (en) | It is a kind of that imaging system is accurately measured based on X-ray | |
| US11714202B2 (en) | High resolution dynamic detector for imaging and dosimetry in megavoltage radiation therapy | |
| RU2421138C2 (en) | Regulation of mobile x-ray unit position | |
| US20160367838A1 (en) | Multi-mode cone beam ct radiotherapy simulator and treatment machine with a flat panel imager | |
| WO2011099449A1 (en) | Particle beam irradiation device and control method therefor | |
| CA3135998A1 (en) | An integrated x-ray precision imaging device | |
| CN109276266A (en) | It is a kind of that X-ray imaging dosing method is carried out according to thickness value | |
| US20100290707A1 (en) | Image acquisition method, device and radiography system | |
| US10779791B2 (en) | System and method for mobile X-ray imaging | |
| JP2011050585A (en) | Particle beam irradiation apparatus and particle beam irradiation method | |
| US10456041B2 (en) | Medical imaging apparatus and method of controlling the same | |
| CN103690187A (en) | Device and method for measuring oral BMD (Bone Mineral Density) based on X-ray | |
| CN209391956U (en) | It is a kind of that imaging system is accurately measured based on X-ray | |
| US6782077B2 (en) | Imaging apparatus, imaging system, control method of imaging apparatus, and storage medium with timing control functionality | |
| CN201734722U (en) | Apparatus for positioning in radiation treatment | |
| KR20160089762A (en) | An radiography apparatus, a method for controlling the radiography apparatus | |
| CN101588759B (en) | Apparatus and method for a medical diagnosis | |
| CN207611151U (en) | A kind of accurate lossless two-dimension imaging apparatus of X-ray intensity | |
| US11517273B2 (en) | Dual energy X-ray imaging apparatus | |
| CN209360713U (en) | A kind of X-ray irradiation system being imaged according to thickness value real-time and precise | |
| CN109833053A (en) | The dual intensity antidote of CT shape filter defect | |
| CN209027484U (en) | A kind of thickness measurement system based on binocular camera shooting | |
| CN108445024A (en) | A kind of imaging method of high-speed object X-ray Real Time Image System and system | |
| CN202994692U (en) | X-ray real-time imaging system with automatic focal length measurement function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 610000 north of Chengdu modern industrial port, PI Du District, Chengdu, Sichuan, No. 269 North Road, Hong Kong. Applicant after: Xiaozhi future (Chengdu) Technology Co., Ltd Address before: 610000 north of Chengdu modern industrial port, PI Du District, Chengdu, Sichuan, No. 269 North Road, Hong Kong. Applicant before: XIAOZHI TECHNOLOGY (CHENGDU) Co.,Ltd. |