CN106324975A - Double X-ray machine system and control method thereof - Google Patents
Double X-ray machine system and control method thereof Download PDFInfo
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- 230000003028 elevating effect Effects 0.000 claims abstract description 25
- 238000004980 dosimetry Methods 0.000 claims description 160
- 210000001015 abdomen Anatomy 0.000 claims description 25
- 210000000629 knee joint Anatomy 0.000 claims description 25
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- 238000004846 x-ray emission Methods 0.000 claims description 4
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- 210000000038 chest Anatomy 0.000 claims 7
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- 238000002591 computed tomography Methods 0.000 description 2
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- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
- G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
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- A—HUMAN NECESSITIES
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- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
- G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
- G03B42/026—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays for obtaining three-dimensional pictures
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Abstract
The invention provides a double X-ray machine system and a control method thereof. Under control of a controller, a synchronous segmented elevating mechanism is used to drive a first X ray source, a first X ray surface receiver, a second X ray source, and a second X ray surface receiver to synchronously move to a plurality of segments of different heights, and the first X ray source and the second X ray source disposed in the corresponding segments are used to emit X rays, and then the whole plate surface of the receiving plate of the first X ray surface receiver and the whole plate surface of the receiving plate of the second X ray surface receiver are used to acquire plane images, and therefore pre-detection part plane images corresponding to all of segments of the first X ray source and the second X ray source are acquired. The dosage parameters of the various segments during front position shooting, side position shooting, and inclined position shooting are preset in the controller, and the first X ray source and the second C ray source are used to emit the X rays according to the preset dosage parameters at the corresponding shooting angles and the corresponding segments. The dosage parameters are set according to different parts of a body, and radiation is greatly reduced, and therefore human body standing position whole body pictures at two orientations are acquired, and therefore medical analysis and planning is facilitated, and scanning speed is fast.
Description
Technical field
The present invention relates to medical treatment perspective scanning field, particularly to be a kind of double X-ray machine system and control method thereof.
Background technology
In current medical skill, by the way of scanning human body forms perspective piece, include CT scan, X-ray scanning.Existing
Some X-ray machine systems all can only be from the local of an azimuth scan human body, and the only one side fragmentary, perspective view of formation, this is for doctor
Treat and there is bigger limitation for analyzing.And, existing X-ray machine system scan mode is line scanning, the local of alignment human body
Scan the most continuously, thus obtain complete fragmentary, perspective view, owing to X-ray has stronger radioactivity, irradiated many
Human body can be existed bigger harm, and the mode of line scanning needs from start to finish to launch X-ray, so radiating excessive, and line
The speed of scan mode scanning is very slow, impact medical treatment progress.
Additionally, existing CT machine can scan the whole body of human body, but CT scan radiation is very big, and scanning process
In, human body needs to lie down to be scanned, and human body attitude, angle are single, and this can limit surgery planning, hinder the sight at some position
Examine.
Summary of the invention
It is an object of the invention to provide a kind of double X-ray machine system, to overcome technical problem present in prior art.
For solving the problems referred to above, the present invention proposes a kind of double X-ray machine system, including:
First X source, in order to launch X-ray, its X-ray launched is thrown to the first X-ray face receptor behind detection region
Receiving on plate, stands for human body in described detection region;
First X-ray face receptor, is oppositely arranged with described first X source, throws to its reception plate in order to receive the first X source
Face image;
Secondary light source, in order to launch X-ray, its X-ray launched is thrown to the second X-ray face receptor behind described detection region
Reception plate on;
Second X-ray face receptor, is oppositely arranged with described second X source, throws to its reception plate in order to receive the second X source
Face image;
Synchronous segmenting elevating mechanism, in order to realize described first X source, the first X-ray face receptor, the second X source, second
The synchronous segmenting of X-ray face receptor in the vertical direction rises or synchronous segmenting declines;And
Controller, in order to control described synchronous segmenting elevating mechanism drive described first X source, the first X-ray face receptor,
In the section of the second X source, the second X-ray face receptor synchronizing moving extremely some differing heights, control to be in corresponding section
Described first X source and the second X source launch X-ray, with at the first X-ray face receptor and the reception plate of the second X-ray face receptor
Whole plate face on obtain face image, thus obtain the face, pre-detection position that the first X-ray face is corresponding with the second whole section in X-ray face
Image;
It is preset with the dosimetry parameter that each section is made film with loxosis in normotopia film making, the film making of position, side in described controller, controls
First X source, the second X source launch X-ray when corresponding shooting angle and corresponding section by the dosimetry parameter preset.
According to one embodiment of present invention, make film with the normotopia of a default wherein section, the film making of position, side is clapped with loxosis
The dosimetry parameter of sheet is as reference value, and the dosimetry parameter of remaining section is the relative value on the basis of this reference value, reference value and
Depending on the numerical value of relative value is according to the thickness of different human body difference section and volume distributed median.
According to one embodiment of present invention, described section is followed successively by head and neck section, chest and abdomen section, waist hip section, knee joint from top to bottom
Section, lower limb foot section, each section preset in described controller is at normotopia film making, the film making of position, side and the dosimetry parameter bag of loxosis film making
Include: in normotopia film making, the dosimetry parameter in head and neck section is reference value 1.0, and the dosimetry parameter in chest and abdomen section is the relative of reference value
Value 1.1~1.7, the relative value that dosimetry parameter is reference value 0.9~1.5 of waist hip section, the dosimetry parameter in knee joint section is reference
The relative value 0.6~1.2 of value, the relative value that dosimetry parameter is reference value 0.2~0.8 of lower limb foot section;In the film making of position, side, at head
The dosimetry parameter of cervical part of esophagus is reference value 1.0, the relative value that dosimetry parameter is reference value 1.8~2.4 of chest and abdomen section, in waist hip section
The relative value that dosimetry parameter is reference value 1.7~2.3, the relative value that dosimetry parameter is reference value 0.8~1.4 of knee joint section,
The relative value that dosimetry parameter is reference value 0.4~1.0 in lower limb foot section;In loxosis film making, the dosimetry parameter in head and neck section is ginseng
Examining value 1.0, the relative value that dosimetry parameter is reference value 1.5~2.1 of chest and abdomen section, the dosimetry parameter in waist hip section is reference value
Relative value 1.3~1.9, the relative value that dosimetry parameter is reference value 0.7~1.3 of knee joint section, at the dosimetry parameter of lower limb foot section
Relative value 0.3~0.9 for reference value.
According to one embodiment of present invention, after the face image that controller obtains when corresponding shooting angle and corresponding section
Carry out gradation of image analysis, adjust each section preset according to gray value in normotopia film making, the film making of position, side and the agent of loxosis film making
Amount parameter, it is achieved the self study of dosimetry parameter.
According to one embodiment of present invention, described controller receives the height mass parameter of outside input, according to difference
Height mass parameter adjust preset each section normotopia film making, position, side film making with loxosis film making dosimetry parameter.
According to one embodiment of present invention, described controller includes intermittent type X-ray emission controlling unit: in order to control
State the first X source and the second X source be closed in whole motor process, do not launch X-ray, control the first X source and
Second X source starts after completing to position to corresponding section, launches X-ray by the dosimetry parameter preset.
The present invention also provides for the control method of a kind of pair of X-ray machine system, comprises the following steps:
S1: preset different section at normotopia film making, the film making of position, side and the dosimetry parameter of loxosis film making;
S2: stand angle adjustment shooting angle parameter according to pre-detection position, and control two X source and X-ray face are received
Device moves to the section of required shooting;
S3: control X source and launch X-ray by the dosimetry parameter under the corresponding shooting angle preset and corresponding section, to obtain
The face image of required detection.
According to one embodiment of present invention, before described step S1, step S11 is also included: determine default dosage ginseng
Number, according to thickness and/or the volume distributed median of the different sections of different human body, determines the thickness between each section and/or volume ratio
Example, make film using the normotopia of a default wherein section, the dosimetry parameter of the film making of position, side and loxosis film making as reference value, remaining section
The dosimetry parameter of position is the relative value on the basis of this reference value, the ratio between reference value and relative value and this thickness and/or
Volume ratio is consistent.
According to one embodiment of present invention, described section is followed successively by head and neck section, chest and abdomen section, waist hip section, knee joint from top to bottom
Section, lower limb foot section, each section preset in described controller is at normotopia film making, the film making of position, side and the dosimetry parameter bag of loxosis film making
Include: in normotopia film making, the dosimetry parameter in head and neck section is reference value 1.0, and the dosimetry parameter in chest and abdomen section is the relative of reference value
Value 1.1~1.7, the relative value that dosimetry parameter is reference value 0.9~1.5 of waist hip section, the dosimetry parameter in knee joint section is reference
The relative value 0.6~1.2 of value, the relative value that dosimetry parameter is reference value 0.2~0.8 of lower limb foot section;In the film making of position, side, at head
The dosimetry parameter of cervical part of esophagus is reference value 1.0, the relative value that dosimetry parameter is reference value 1.8~2.4 of chest and abdomen section, in waist hip section
The relative value that dosimetry parameter is reference value 1.7~2.3, the relative value that dosimetry parameter is reference value 0.8~1.4 of knee joint section,
The relative value that dosimetry parameter is reference value 0.4~1.0 in lower limb foot section;In loxosis film making, the dosimetry parameter in head and neck section is ginseng
Examining value 1.0, the relative value that dosimetry parameter is reference value 1.5~2.1 of chest and abdomen section, the dosimetry parameter in waist hip section is reference value
Relative value 1.3~1.9, the relative value that dosimetry parameter is reference value 0.7~1.3 of knee joint section, at the dosimetry parameter of lower limb foot section
Relative value 0.3~0.9 for reference value.
According to one embodiment of present invention, also include step S12: the self study that dosimetry parameter adjusts, perform described step
Rapid S1~S3 carries out gradation of image analysis after obtaining the face image when corresponding shooting angle and corresponding section, analyzes the ash obtained
Angle value compares with gray threshold, according to each section preset in gray value comparative result set-up procedure S1 in normotopia film making, position, side
The dosimetry parameter that film making is made film with loxosis.
According to one embodiment of present invention, before described step S12, step S121 is also included: dosimetry parameter adjusts mark
Accurate segmentation, obtains multiple pre-detection object samples, classifies according to the personalizing parameters of sample, determine that Different categories of samples is not
Same gray threshold.
According to one embodiment of present invention, step S13 is also included: the dosimetry parameter towards pre-detection object regulates, and obtains
The height mass parameter of pre-detection object, adjust according to different height mass parameters each section preset make film in normotopia,
The dosimetry parameter that the film making of position, side is made film with loxosis.
After using technique scheme, the present invention has the advantages that compared to existing technology
By two pairs of X sources and X-ray face receptor, detection region is scanned, during scanning, human body can optionally stand in
In detection region, the crevice projection angle of two light sources is different, thus shown in the face image received on two bright finish receptors
Angle be different, and drive two X source and X-ray face receptor do synchronous segmenting by synchronous segmenting elevating mechanism and rise
Or descending motion, it is possible to obtain face, the pre-detection position image that the first X-ray face is corresponding with the second whole section in X-ray face, it is simple to doctor
Treat and analyze and planning, it may also be used for the image procossing in later stage, to obtain Whole Body 3-D view, owing to being Surface scan, thus is swept
Retouch speed quickly;
During human body erect position, the shooting perspective of split fix from top to bottom X-ray face image, the body part of differing heights, its
Penetration thickness is different with composition, and required radiological dose parameter can be different, thus presets different shooting in controller
The dosimetry parameter of angle difference section, the X-ray face image that can make the body part of differing heights is the most optimal, it is to avoid claps multiple and enters
Row constantly regulation obtains the drawback of optimal face image, reduces radiation dose;
Every section rise or fall in motor process, X source is to close, and does not launch X-ray, only every section rising or under
After fall motion positions, X source just starts launches X-ray, and X-ray face receptor is simultaneously received the image of projection, owing to being interrupted
Formula launches X-ray shooting image, thus radiation can be greatly reduced.
Accompanying drawing explanation
Fig. 1 is the structural representation of double X-ray machine systems of one embodiment of the invention;
Fig. 2 is the structured flowchart of double X-ray machine systems of one embodiment of the invention;
Fig. 3 is the structured flowchart of double X-ray machine system source control systems of one embodiment of the invention;
Fig. 4 is the section distribution schematic diagram received in plate lifting process of one embodiment of the invention;
Fig. 5 is the schematic flow sheet of the control method of double X-ray machine systems of one embodiment of the invention.
Description of symbols in figure:
1-the first X source, 2-the first X-ray face receptor, 3-the second X source, 4-the second X-ray face receptor, 5-synchronizes to divide
Section elevating mechanism, 51-upright guide rail portion, 52-push rod, 53-contiguous block, 6-lead room, 71-high tension generator, 72-light source control
Device, 73-switch selection circuit, 8-controller, 10-detects region, 11-lead door, 12-leaded glass window.
Detailed description of the invention
Understandable, below in conjunction with the accompanying drawings to the present invention for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
Detailed description of the invention be described in detail.
Elaborate a lot of detail in the following description so that fully understanding the present invention.But the present invention can be with
Much being different from alternate manner described here to implement, those skilled in the art can be in the situation without prejudice to intension of the present invention
Under do similar popularization, therefore the present invention is not limited by following public being embodied as.
Referring to Fig. 1 and Fig. 2, double X-ray machine systems of the present embodiment, including: the first X source 1, the first X-ray face receptor 2,
Second X source 3, the second X-ray face receptor 4, synchronous segmenting elevating mechanism 5 and controller 8.
First X source 1 and the first X-ray face receptor 2 are oppositely arranged.Detection region 10 is at the first X source 1 and the first X-ray
Between face receptor 2, stand for human body.Except detection zone in use between first X source 1 and the first X-ray face receptor 2
Outside the human body stood in territory 10, it is not provided with other and hinders or block object, say, that the X-ray that the first X source 1 is launched passes
Behind detection region, directly throw to the reception plate of the first X-ray face receptor 2, the whole plate face receiving plate obtains a width figure
Picture.The reception plate of the first X-ray face receptor 2 is after receiving X-ray, and the face image that can be formed in plate face stores an X
In the memorizer of bright finish receptor 2.
Second X source 3 and the second X-ray face receptor 4 are oppositely arranged, certainly both position and the first X source 1 and first
X-ray face receptor 2 is different.Detection region 10 is between the second X source 3 and the second X-ray face receptor 4, in other words, detects region
10 both between the first X source 1 and the first X-ray face receptor 2, be positioned at again the second X source 3 and the second X-ray face receptor 4 it
Between.Same, between the second X source 2 and the second X-ray face receptor 3 except detect in use the human body stood in region 10 it
Outward, it is not provided with other hinder or block object, say, that after the X-ray that the second X source 3 is launched passes detection region 10, directly
Throw to the reception plate of the second X-ray face receptor 4, the whole plate face receiving plate obtains piece image.Second X-ray face receives
The reception plate of device 4 is after receiving X-ray, and the face image that can be formed in plate face stores the storage of the second X-ray face receptor 4
In device.
Detection region 10 is according to the first X source 1, the first X-ray face receptor 2, the second X source 3, the second X-ray face receptor 4
Integral layout position depending on, in place of being positioned at the common factor of two bundle X-rays.
Synchronous segmenting elevating mechanism 5 is in order to realize first X source the 1, first X-ray face receptor the 2, second X source the 3, the 2nd X
The synchronous segmenting of bright finish receptor 4 in the vertical direction rises or synchronous segmenting declines.The structure of synchronous segmenting elevating mechanism 5 can
To use existing elevating mechanism and motor to drive realization, thus concrete structure is without limitation, can be that a mechanism is same
Time control the movement of first receptor the 2, second X source the 3, second X-ray face, X source the 1, first X-ray face receptor 4, it is also possible to be
Multiple mechanisms, such as Liang Ge mechanism, one is used for controlling first X source the 1, first X-ray face receptor 2, and another is used for controlling
Second X source the 3, second X-ray face receptor 4.
Controller drives first X source the 1, first X-ray face receptor the 2, second X-ray in order to control synchronous segmenting elevating mechanism
In the section of the 3, second X-ray face, source receptor 4 synchronizing moving extremely some differing heights, several parts can do on different sections and stop
Stay, and be that synchronizing moving is to different sections.The first X source 1 and the second X source 3 that control is in corresponding section launch X
Light, accordingly, on the whole plate face receiving plate of the first X-ray face receptor 2 and the second X-ray face receptor 3 receive plate
X-ray projection face image out can be obtained on whole plate face respectively, thus after a few segment sync moves discontinuously scanning, just can obtain
Face, the pre-detection position image that first X-ray face is corresponding with the second whole section in X-ray face.First X-ray face is the first X-ray face receptor
The face that whole sections that the plate face receiving plate of 2 can be in stack up, the second X-ray face is also in like manner.Face, pre-detection position
Image refers to a face image receiving whole sections that plate receives, it is possible to show or characterize the information at pre-detection position.
It is preset with the dosimetry parameter that each section is made film with loxosis in normotopia film making, the film making of position, side in controller 8, controls first
X source the 1, second X source 3 launches X-ray when corresponding shooting angle and corresponding section by the dosimetry parameter preset.
Thickness according to each sections of human body and volume distributed median, the relative dosage parameter of each body part is the most different.With in advance
If a wherein section normotopia film making, position, side film making with loxosis film making dosimetry parameter as reference value, the agent of remaining section
Amount parameter is the numerical value thickness according to the different section of different human body of the relative value on the basis of this reference value, reference value and relative value
Depending on degree and volume distributed median.
In a specific embodiment, referring to Fig. 4, section be followed successively by from top to bottom head and neck section, chest and abdomen section, waist hip section,
Knee joint section, lower limb foot section, these sections can be the relevant position carrying out dividing equally acquisition by Human Height.Each section preset in controller
Position includes with the dosimetry parameter of loxosis film making in normotopia film making, the film making of position, side: in normotopia film making, the dosimetry parameter in head and neck section is
But being not limited to reference value 1.0, the dosimetry parameter in chest and abdomen section is but is not limited to the relative value 1.1~1.7 of reference value, in waist hip section
Dosimetry parameter be but be not limited to the relative value 0.9~1.5 of reference value, the dosimetry parameter in knee joint section is but is not limited to reference value
Relative value 0.6~1.2, and the dosimetry parameter in lower limb foot section is but is not limited to the relative value 0.2~0.8 of reference value;In the film making of position, side,
Dosimetry parameter in head and neck section is but is not limited to reference value 1.0, and the dosimetry parameter in chest and abdomen section is but is not limited to the phase of reference value
To value 1.8~2.4, the dosimetry parameter in waist hip section is but is not limited to the relative value 1.7~2.3 of reference value, at the dosage of knee joint section
Parameter is but is not limited to the relative value 0.8~1.4 of reference value, and the dosimetry parameter in lower limb foot section is but is not limited to the relative of reference value
Value 0.4~1.0;In loxosis film making, the dosimetry parameter in head and neck section is but is not limited to reference value 1.0, and the dosage in chest and abdomen section is joined
Number is but is not limited to the relative value 1.5~2.1 of reference value, and the dosimetry parameter in waist hip section is but is not limited to the relative value of reference value
1.3~1.9, the dosimetry parameter in knee joint section is but is not limited to the relative value 0.7~1.3 of reference value, at the dosimetry parameter of lower limb foot section
For but be not limited to the relative value 0.3~0.9 of reference value.Different-thickness and volume according to human body difference section determine these references
Value and relative value, after presetting in the controller, can once shoot and just can obtain optimal X-ray face image, it is not necessary to repeatedly shoot
Adjust and obtain optimum state, substantially reduce radiation dose.
With the positive bit scan relative thickness of head and neck section for reference thickness, by the method measuring human body three-dimensional scan model,
Obtain position, the positive side relative thickness of each sections.Relative dosage parameter is proportional with thickness, using the dosimetry parameter of head and neck section as ginseng
Examining value, the relative dosage parameter of remaining section is will to form relative value based on this reference value.
The relative dosage parameter of head and neck section is 1.0, and the preferred scope of relative dosage of each sections is table 1, determines head and neck section
Dose value just can uniquely determine the dose value of remaining section.
Normotopia is made film | Make film in position, side | Loxosis is made film | |
Head and neck section | 1.0 | 1.0 | 1.0 |
Chest and abdomen section | 1.4 | 2.1 | 1.8 |
Waist hip section | 1.2 | 2.0 | 1.6 |
Knee joint section | 0.9 | 1.1 | 1.0 |
Lower limb foot section | 0.5 | 0.7 | 0.6 |
The each shooting angle of table 1 is in the shooting relative dosage parameter of each section
Loxosis film making is preferably relative human body loxosis 45 degree film making.
It is also preferred that the left consider individuation factor, by default human parameters, crowd can be classified.Each classification
Other crowd's Data Integration, finer adjustment dosage.One example of which is to be divided into by human body: man, female, child are (first
Men and women is divided to divide child again);Thin, in, fat;3X3 nine groups altogether.Initially with default each section normotopia film making, position, side film making with
The dosimetry parameter of loxosis film making, carries out pixel value gray analysis to collecting the every section face image obtained.Gray scale is low represents exposure
Amount is not enough, dosage is inadequate, and gray scale height represents that overexposure, dosage are the biggest.Adjust dosimetry parameter according to gray value, formed the most more
The dosimetry parameter of new study, is formed the most stable when each classification crowd's quantity, final for each classification crowd
Numerical value.In other words, gradation of image analysis, root are carried out after the face image that controller obtains when corresponding shooting angle and corresponding section
According to gray value adjust preset each section normotopia film making, position, side film making with loxosis film making dosimetry parameter, it is achieved dosage from
Study.
Further, individuation factor deeper into, regulate dosage by the height and weight of human body.One way in which is hands
The height and weight of dynamic record experimenter.Another way is that the automatic height and weight of integrated installation measures dress in double X-ray machine systems
Put, such as ergograph, the laser altimeter of embedded type.Obtain height and the ratio of body weight, as more BMI (body quality
Exponential number), default each section can be used in normotopia film making, side the crowd of different BMI using BMI=20 as reference value
Position film making is made film with the dosimetry parameter that loxosis is made film, and the every section face image obtaining collection carries out pixel value gray scale and divides
Analysis, adjusts dosimetry parameter according to gray value analysis result, can realize regulation radiological dose automanual, in broad range.
In other words, controller 8 receives the height and weight ratio of outside input, adjusts each section preset according to different height and weight ratio
The dosimetry parameter made film with loxosis in normotopia film making, the film making of position, side in position.
During human body erect position, split fix shooting perspective X-ray face image, the body part of differing heights, its penetration thickness
Different with composition, required radiological dose parameter can be different, thus it is different to preset different shooting angles in controller 8
The dosimetry parameter of section, the X-ray face image that can make the body part of differing heights is the most optimal, it is to avoid claps multiple and constantly adjusts
Joint obtains the drawback of optimal face image, reduces radiation dose.Further by image intensity value analysis and/or height and weight ratio
The different of value adjust the dosimetry parameter preset, it is achieved the self study of dosimetry parameter so that dose titration is the finest.
When the face image that the movement of whole sections discontinuously scans so that receiving contains Whole Body, two sides just can be obtained
The human body erect position whole body figure of position, it is simple to medical analysis and planning, it may also be used for the image procossing in later stage obtains Whole Body three
Dimension image.
It is also preferred that the left controller 8 includes intermittent type X-ray emission controlling unit.Intermittent type X-ray emission controlling unit is in order to control
First X source 1 and the second X source 2 are closed in whole motor process, do not launch X-ray;Further, intermittent type X-ray is sent out
Penetrate control unit and control the startup after completing to position to corresponding section of the first X source 1 and the second X source 3, by the dosage preset
Parameter launches X-ray.
In other words, under control of the controller, drive the first X source 1, first X-ray face of synchronous segmenting elevating mechanism 5 receives
The 3, second X-ray face receptor 4 segmentation of device the 2, second X source is moved, in every section of moving process, and the first X source 1 and the second X-ray
Source 3 is closed, and after every section of running fix, the first X source 1 and the second X source 3 are opened, and the first X-ray face receptor 2 receives
One X source 1 throws the face image receiving plate to it, and the second X-ray face receptor 4 receives the second X source 3 and throws the face figure to its reception plate
Picture.The size receiving plate of the first X-ray face receptor 2 and the second X-ray face receptor 4 is preferably identical, and at least both receive plate
The most identical.
X source faces toward X-ray face receptor, and X source launches X-ray after opening, and the reception plate of corresponding X-ray face receptor just obtains
One breadth image, X source is closed and is not the most launched X-ray, the most do not generates face image.For line scans, scanning obtains required
The speed of image, and without being scanned continuously, thus without being kept on all X source, reduce human body
Radiation.
In one embodiment, controller 8 farther includes elevating mechanism control unit, and the first X-ray face reception processes single
Unit, the second X-ray face receives processing unit and graphics processing unit.
Elevating mechanism control unit: be used for controlling synchronous segmenting elevating mechanism and drive first X source the 1, first X-ray face to receive
Point many segment syncs of device the 2, second X source the 3, second X-ray face receptor 4 rise or fall, and control the first X-ray face receptor
2 and second each of X-ray face receptor 4 receive plate position before every section rises or falls and the position after this section rises or falls
Put and there is overlapping region.
First X-ray face receives processing unit: for the respective numbers breadth image received by the first X-ray face receptor 2
Image procossing including overlapping region processes, face, the pre-detection position image that the first X-ray face that is spliced into is corresponding.Second X-ray
Face receives processing unit: for the respective numbers breadth image that the second X-ray face receptor 4 receives being included, overlapping region processes
At interior image procossing, face, the pre-detection position image that the second X-ray face that is spliced into is corresponding.Image processing techniques can be existing
Ripe image processing techniques.
Graphics processing unit: for by corresponding to pre-detection position face image corresponding for the first X-ray face and the second X-ray face pre-
Test section plane image procossing becomes three-dimensional face, pre-detection position image.
In the present embodiment, first the face image in the first X-ray face and the second X-ray face is spliced completely by controller 8 respectively, shape
Become two face, width pre-detection position images, then face, the pre-detection position image procossing in two X-ray faces is become three-dimensional face, pre-detection position
Image.
First X-ray face is different relative to pre-detection position angle with the second X-ray face, thus the corresponding pre-detection portion obtained
The image shot from two different angles at plane characterization image pre-detection position, e.g. anterioposterior and lateral film or bilateral bit slice,
The image obtained by two angles can be used to generate three-dimensional face, pre-detection position image, the solid figure at reduction pre-detection position
Shape.
In another embodiment, controller 8 farther includes: elevating mechanism control unit and some section receptions process
Unit.
Elevating mechanism control unit: be used for controlling synchronous segmenting elevating mechanism and drive first X source the 1, first X-ray face to receive
Point many segment syncs of device the 2, second X source the 3, second X-ray face receptor 4 rise or fall, and control the first X-ray face receptor
2 and second each of X-ray face receptor 4 receive plate position before every section rises or falls and the position after this section rises or falls
Put and there is overlapping region.
Some sections receive processing unit: each section receives unit for by the first X-ray face receptor and the second X-ray face
The face image of the current section that receptor receives, three-dimensional pre-corresponding with the second current section of bright finish in the first X-ray face that is spliced into
Test section plane image;Further, the first X-ray face and the current section of the second bright finish and the last period are completed by the process of overlapping region
The splicing of face, the three-dimensional pre-detection position image that position is corresponding.
In the present embodiment, first the face image mosaic that two bright finish receptors in each section obtain is become this section
Three-dimensional face, pre-detection position image, then face, the three-dimensional pre-detection position image of whole sections is the most completely spliced according to overlapping region
Get up, it is thus achieved that complete face, three-dimensional pre-detection position image.
One minor face image is disposable acquisition, and X source starts irradiation just can obtain respective face figure on the receptor of X-ray face
Picture.The distance that segmentation is moved is less than the height of reception plate, and the face image between the most adjacent section exists overlapping region, from
And all segmentation is moved and be there is association between the face image of acquisition, can be used to graphic joining.Only segmentation running fix time
Wait and start X source, the most only synchronous segmenting elevating mechanism stop motion when, receive and on plate, just can receive X-ray bat
The respective face image taken the photograph, greatly reduces radiation.
The image border later stage in order to receive is capable of identify that by stitching algorithm, it is achieved automatization splices, and needs at each section
There is overlapping region between Wei, thus the image that on adjacent two sections, reception plate receives just has corresponding overlapping region.Weight
Folded region such as can be receive plate area 0%~50%, it is ensured that after splicing image effect and avoid image occur local
Repeat.
Referring to Fig. 4, wherein, first receptor the 2, second X source the 3, second X-ray face, X source the 1, first X-ray face receptor 4
In the vertical direction segmentation is moved, and has different sections, after every segment sync rises or falls motion certain distance, receives at plate
In corresponding section, the first X source 1 starts transmitting X-ray, the first X-ray face receptor 2 receives the first X source 1 and throws to its reception
The face image of plate, and the second X source 3 launches X-ray, the second X-ray face receptor 4 receives the second X source 3 and throws the face to its reception plate
Image, then first receptor the 2, second X source the 3, second X-ray face, X source the 1, first X-ray face receptor 4 resynchronizes rising one
Section or synchronization decline certain distance, are in adjacent section, launch X-ray and correspondingly received image the most respectively, so repeat
The most just can be from two complete bodies of orientation surface sweeping.
What deserves to be explained is, owing to receiving price tens times of growth along with the increase of size of plate, thus reception plate without
It is very big that method is done, and on the one hand reason is that large-sized reception plate price is the most expensive, and increase system realizes cost, is unfavorable for product
Expanding market, on the other hand reason is to receive board size to do greatly, and it is very big that X source needs to do too, could realize X-ray and cover
Lid completely receives the whole plate face of plate, obtains face image on the whole plate face receiving plate, and cost radiates the most significantly while increasing
Increase, be highly detrimental to human body, and owing to light can have strong and weak change because of direction and range, in the edge receiving plate
The problems such as smudgy, ghost image can be there is in the image received.Therefore, the size receiving plate is rationally set, by fractional scanning
Mode obtains several small-sized images, finally can carry out being spliced to form significantly image.
Referring to Fig. 2, it is also preferred that the left the plate receiving plate receiving plate and the second X-ray face receptor 4 of the first X-ray face receptor 2
Face is square, and the length of side is all between 20cm~60cm.The reception plate elongated surfaces of the first X-ray face receptor 2 and the second X-ray face receive
The intersecting lens receiving plate elongated surfaces of device 4 to vertical dimension d of each reception plate between 0~50cm.
Concrete, the first X source 1 and the second X source 3 can be all X-ray bulb, the center alignment of each X-ray bulb
The center of correspondingly received plate, the aperture size of each X-ray bulb adjusts to the X-ray launched to throw and is completely covered to correspondingly received plate
The plate face of this reception plate.The center of the such as first X source 1 is directed at the center receiving plate of the first X-ray face receptor 2, court
Reception plate and launch X-ray, the plate face receiving plate can completely be covered by the X-ray launched, thus light is thrown to receiving Board position
Bright finish can be more than or equal to the area receiving plate.First X-ray face receptor 2 and the second X-ray face receptor 4 such as may each be DR
(Digital Radiography, digitized X-ray is photographed) flat receiver, can enter with opposite image after receiving face image
Row processes, storage.
Optionally, the first X-ray face receptor 2 receive the elongated surfaces of plate and the second X-ray face receptor 4 receive prolonging of plate
Angle between long face at right angles, acute angle or obtuse angle, the luminous site of the first X source 1 just connecing the first X-ray face receptor 2
Receive plate, the luminous site of the second X source 3 just reception plate to the second X-ray face receptor 4.As long as at detection region two X-ray bundle tool
There is common factor, and finally can throw respectively to respective reception plate.In fig. 1 and 2, the connecing of the first X-ray face receptor 2
Receive the angle between the elongated surfaces of plate and the elongated surfaces receiving plate of the second X-ray face receptor 4 rectangular.It is also preferred that the left the first X-ray
The reception plate receiving plate and/or the second X-ray face receptor 4 of face receptor 2 can rotate around a vertical axis, thus realizes
Angle between both elongated surfaces is adjustable, obtains the human body image of the different azimuth of required shooting neatly.
The luminous site of the first X source 1 and the distance received between plate of the first X-ray face receptor 2 are at 0.5m~2.0m
Between, the distance received between plate of the luminous site of the second X source 3 and the second X-ray face receptor 4 0.5m~2.0m it
Between.The X-ray projection of this range intervals can ensure that and receives preferable image on reception plate, it is also possible to avoid receiving chi needed for plate
Very little excessive.
Further, double X-ray machine systems can also include distance adjusting mechanism (not shown).Distance adjusting mechanism is used
To regulate the distance between the luminous site of the first X source 1 and the reception plate of the first X-ray face receptor 2 and/or regulation the 2nd X
The luminous site of light source 3 and the distance received between plate of the second X-ray face receptor 4.The structure of distance adjusting mechanism can be adopted
Realize with existing distance adjusting mechanism, can be that a mechanism is jointly for regulating two distances, it is possible to Shi Liangge mechanism
It is respectively intended to regulate two distances.The most without limitation.Such as cunning can be set on the first X source 1 and the second X source 2
Block, arranges slide rail in lower section, and rail is to the direction towards corresponding X-ray face receptor, thus it is adjustable to realize light source distance.So,
When light spacing receptor is the most a bit, so that the image received is relatively sharp, and the power that light source is launched also can be less, from
And reduce radiation, and light spacing receptor a little further time so that light more tends to parallel, anamorphose is few, receive plate
Plate face size also can do less.
In one embodiment, synchronous segmenting elevating mechanism can include double leval jib, upright guide rail portion and motor.Double leval jib
On be fixedly connected with the first X source, the first X-ray face receptor, the second X source, the second X-ray face receptor, double leval jib is at motor
Driving under rise or fall along upright guide rail portion and to move, drive the first X source, the first X-ray face receptor, the second X source,
Second X-ray face receptor is synchronized with the movement.
In another embodiment, synchronous segmenting elevating mechanism includes two two connecting rods, two upright guide rail portions and two
Motor.Fixing connection the first X source, the first X-ray face receptor on first two connecting rod, first two connecting rod is at first motor
Driving under rise or fall along first upright guide rail portion and to move, drive the first X source, the first X-ray face receptor motion.
Fixing connection the second X source, the second X-ray face receptor, second two connecting rods driving at second motor on second two connecting rod
Rise or fall along second upright guide rail portion under Dong and move.Certainly, first motor and second motor in synchrony drive, from
And realize the first X source, the first X-ray face receptor, the second X source, the second X-ray face receptor are synchronized with the movement.
In yet another embodiment, synchronous segmenting elevating mechanism includes 53, four upright guide rail portions 51, four of four contiguous blocks
Individual push rod 52 and four motor (not shown)s, four contiguous blocks 53 have been respectively fixedly connected with first X source the 1, first X-ray
Face receptor the 2, second X source the 3, second X-ray face receptor 4, four push rod actions under the driving of four motors respectively, thus
Promoting four contiguous blocks to rise or fall along four upright guide rail portions respectively to move, four contiguous blocks drive the first X-ray respectively
Receptor the 2, second X source the 3, second X-ray face, the 1, first X-ray face, source receptor 4 moves.Four motor in synchrony drive, thus real
Existing first receptor the 2, second X source the 3, second X-ray face, X source the 1, first X-ray face receptor 4 is synchronized with the movement, and four motors can
Controlled by controller 8.
One upright guide rail portion 51 can be made up of more than one guide rail, and preferably two guide rails, to play the work of balance
With.
Referring to Fig. 1 and 2, in one embodiment, double X-ray machine systems can also include lead room 6, and whole lead room 6 is by metal
Lead is made, and can be considered as protective housing, plays the effect of protection.Each upright guide rail portion can be fixedly installed on the difference in lead room 6
On sidewall.
Have on lead room 6 can the lead door 11 of folding, pass in and out for people, preferably sliding door, lead door 11 can arrange lead
Change glass window 12, in order to internal from external observation lead room 6.First X source the 1, first X-ray face it is internally provided with in lead room 6
Receptor the 2, second X source the 3, second X-ray face receptor 4, synchronous segmenting elevating mechanism 5, controller 8 etc., also can arrange corresponding
Required equipment, arranges lead room 6 so that scanning is carried out in the space being completely independent closing, prevents from penetrating outside X-ray.Additionally,
Lead room 6 can realize removableization of double X-ray machine system, it is not necessary in the place of required scanning again in-site installation, increases and uses
Scope, volume production can be realized, reduce cost the most accordingly.The size in lead room 6 can be arranged as required to.Optionally, on lead room 6
Road wheel can also be set, it is simple to mobile.
In one embodiment, double X-ray machine systems also include controlling the first X source 1 and the second X source launches X-ray 3
Light-source control system.
Optionally, light-source control system includes two high tension generators, connects the first X source and the second X source respectively, respectively
High tension generator exports high pressure periodically and launches X-ray to control the first X source and the second X source respectively.High tension generator is permissible
Use existing high tension generator.
It is also preferred that the left referring to Fig. 3, light-source control system can include 71, switch selection circuit of a high tension generator
73 and light source controller 72, high tension generator 71 exports high pressure periodically, and the input of switch selection circuit 73 connects high Hair Fixer
The outfan of raw device 71, the first outfan of switch selection circuit 73 connects the first X source 1, the second of switch selection circuit 73
Outfan connects the second X source 3, and light source controller 72 controls switch selection circuit 73 and selects two high pressure to divide in some cycles
Not exported by the first outfan, the second outfan, in figure 3, switch selection circuit periodically selects a high input voltage to the
In one X source, periodically select b high input voltage in the second X source, launch controlling the first X source 1 and the second X source 3
X-ray.High tension generator 71 exports a cycle duration of high pressure and is shorter than each outfan output high pressure of switch selection circuit 73
One cycle duration.Switch selection circuit 73 can use single pole multiple throw to realize.Light source controller 72 can be integrated in control
In device processed.
The price of high tension generator 71 costliness very, triggers the first X source 1 He respectively according to two high tension generators
Second X source 2 launches X-ray, relatively costly, and use switch selection circuit 73 to select high pressure, can be by high tension generator 71
The high pressure produced successively is input in the first X source 1 and the second X source 2, cost-effective.
Referring to Fig. 5, the control method of double X-ray machine systems of the present embodiment, double X-ray machine systems can be in previous embodiment
Any one double X-ray machine system, but be not limited to this, other pair of X-ray machine system, or single the most X-ray machines of X-ray machine
To be suitable for.This control method comprises the following steps:
S1: preset different section at normotopia film making, the film making of position, side and the dosimetry parameter of loxosis film making;
S2: stand angle adjustment shooting angle parameter according to pre-detection position, and control two X source and X-ray face are received
Device moves to the section of required shooting;
S3: control X source and launch X-ray by the dosimetry parameter under the corresponding shooting angle preset and corresponding section, to obtain
The face image of required detection.
Owing to the ulking thickness at each position of human body is the most different, thus required X-ray radiological dose is different, as
Fruit uses unified dosage that the face image obtained can be made not ideal enough, and if repeatedly carrying out dosage by shooting and just regulate
Make to radiate very much big especially, harmful.By the control method of double X-ray machine systems of the present embodiment, can avoid this
Situation, by presetting suitable dosimetry parameter, can obtain comparatively ideal image when shooting, it is not necessary to shooting is repeatedly adjusted
Joint, reduces radiation dose.
In step sl, preset the shooting dosage of double X-ray machine systems, each section human body thickness volume parameter not
With, and the most different from the human body thickness volume parameter of loxosis film making in normotopia film making, the film making of position, side, thus in each different shootings
Different sections under angle are required to preset suitable dosimetry parameter.
Thickness according to each sections of human body and volume distributed median, the relative dosage parameter of each body part is the most different.Preferably
, before step S1, also include step S11: determine default dosimetry parameter, according to the thickness of the different sections of different human body
And/or volume distributed median, determine the thickness between each section and/or volume ratio, make film with the normotopia of a default wherein section,
The dosimetry parameter that the film making of position, side and loxosis are made film is as reference value, and the dosimetry parameter of remaining section is on the basis of this reference value
Relative value, the ratio between reference value and relative value is consistent with this thickness and/or volume ratio.
In a specific embodiment, referring to Fig. 4, section be followed successively by from top to bottom head and neck section, chest and abdomen section, waist hip section,
Knee joint section, lower limb foot section, each section preset in controller includes with the dosimetry parameter of loxosis film making in normotopia film making, the film making of position, side:
In normotopia film making, the dosimetry parameter in head and neck section is but is not limited to reference value 1.0, and the dosimetry parameter in chest and abdomen section is but is not limited to
The relative value 1.1~1.7 of reference value, the dosimetry parameter in waist hip section is but is not limited to the relative value 0.9~1.5 of reference value,
The dosimetry parameter of knee joint section is but is not limited to the relative value 0.6~1.2 of reference value, and the dosimetry parameter in lower limb foot section is but is not limited to ginseng
Examine the relative value 0.2~0.8 of value;In the film making of position, side, the dosimetry parameter in head and neck section is but is not limited to reference value 1.0, at chest and abdomen
The dosimetry parameter of section is but is not limited to the relative value 1.8~2.4 of reference value, and the dosimetry parameter in waist hip section is but is not limited to reference
The relative value 1.7~2.3 of value, the dosimetry parameter in knee joint section is but is not limited to the relative value 0.8~1.4 of reference value, in lower limb foot section
Dosimetry parameter be but be not limited to the relative value 0.4~1.0 of reference value;Loxosis film making in, the dosimetry parameter in head and neck section be but
Being not limited to reference value 1.0, the dosimetry parameter in chest and abdomen section is but is not limited to the relative value 1.5~2.1 of reference value, in waist hip section
Dosimetry parameter is but is not limited to the relative value 1.3~1.9 of reference value, and the dosimetry parameter in knee joint section is but is not limited to the phase of reference value
To value 0.7~1.3, the dosimetry parameter in lower limb foot section is but is not limited to the relative value 0.3~0.9 of reference value.
With the positive bit scan relative thickness of head and neck section for reference thickness, by the method measuring human body three-dimensional scan model,
Obtain position, the positive side relative thickness of each sections.Relative dosage parameter is proportional with thickness, using the dosimetry parameter of head and neck section as ginseng
Examining value, the relative dosage parameter of remaining section is will to form relative value based on this reference value.
The relative dosage parameter of head and neck section is 1.0, and the preferred scope of relative dosage of each sections is table 1, determines head and neck section
Dose value just can uniquely determine the dose value of remaining section.
In step s 2, stand angle adjustment shooting angle parameter according to pre-detection position, and control two to X source and X
Bright finish receptor moves to the section of required shooting.In other words, the erect position angle according to pre-detection position is different, is just selecting
The dosimetry parameter of the corresponding section under position film making, the film making of position, side or loxosis film making, controls two and moves X source and X-ray face receptor
Move to the section of required shooting, preferably can be by the synchronous segmenting elevating mechanism of the double X-ray machine systems in previous embodiment
Move, can move from top to bottom or move from the bottom up or the movement of saltatory, not be restricted.
Further, it is considered to individuation factor, the control method of double X-ray machine systems also includes step S12: dosimetry parameter is adjusted
Whole self study, performs step S1~S3 obtains the face image when corresponding shooting angle and corresponding section, carries out image afterwards
Gray analysis, analyzes the gray value obtained and compares with gray threshold, according to preset in gray value comparative result set-up procedure S1
The dosimetry parameter that each section is made film in normotopia, the film making of position, side is made film with loxosis.Make film in normotopia initially with default each section,
The film making of position, side and the dosimetry parameter of loxosis film making, carry out pixel value gray analysis to collecting the every section face image obtained.Gray scale
Low expression light exposure is not enough, dosage is inadequate, and gray scale height represents that overexposure, dosage are the biggest.Dosimetry parameter is adjusted according to gray value,
Form the dosimetry parameter constantly updating study.
Step S121 can also be included: dosimetry parameter adjusts the segmentation of standard, obtains multiple pre-detection before step S12
Object samples, classifies according to the personalizing parameters of sample, determines the different gray thresholds of Different categories of samples.By default people
Body parameter, can classify crowd.Each sub-category demographic data is integrated, finer adjustment dosage.Therein one
Individual example is to be divided into by human body: man, female, child's (first dividing men and women to divide child again);Thin, in, fat;3X3 nine groups altogether.In each classification
Formed the most stable, for the final dose parameter values of each classification crowd when crowd's quantity is many.
Further, individuation factor deeper into, regulate dosage by the height and weight of human body.The control of double X-ray machine systems
Method processed also includes step S13: the dosimetry parameter towards pre-detection object regulates, it is thus achieved that the height quality ginseng of pre-detection object
Number, the dosage that each section preset according to different height mass parameter adjustment is made film with loxosis in normotopia film making, the film making of position, side
Parameter.One way in which is the height and weight of manually recorded experimenter.Another way is integrated peace in double X-ray machine systems
Fill automatic height and weight measurement apparatus, such as ergograph, the laser altimeter of embedded type.Obtain height and the ratio of body weight, as with
More BMI (body-mass index numerical value), the crowd of different BMI can be used default using BMI=20 as reference value
Each section is made film in normotopia, the film making of position, side is made film with the dosimetry parameter that loxosis is made film, the every section face figure obtaining collection
As carrying out pixel value gray analysis, adjust dosimetry parameter according to gray value analysis result, can realize automanual, in broad range
Interior regulation radiological dose.
During human body erect position, split fix shooting perspective X-ray face image, the body part of differing heights, its penetration thickness
Different with composition, required radiological dose parameter can be different, thus it is different to preset different shooting angles in controller
The dosimetry parameter of section, the X-ray face image that can make the body part of differing heights is the most optimal, it is to avoid claps multiple and constantly adjusts
Joint obtains the drawback of optimal face image, reduces radiation dose.Further by image intensity value analysis and/or height and weight ratio
The different of value adjust the dosimetry parameter preset, it is achieved the self study of dosimetry parameter so that dose titration is the finest.
Although the present invention is open as above with preferred embodiment, but it is not for limiting claim, any this area
Technical staff without departing from the spirit and scope of the present invention, can make possible variation and amendment, therefore the present invention
Protection domain should be defined in the range of standard with the claims in the present invention.
Claims (12)
1. a double X-ray machine system, it is characterised in that including:
First X source, in order to launch X-ray, its X-ray launched throws the reception to the first X-ray face receptor behind detection region
On plate, stand for human body in described detection region;
First X-ray face receptor, is oppositely arranged with described first X source, throws the face to its reception plate in order to receive the first X source
Image;
Secondary light source, in order to launch X-ray, its X-ray launched throws connecing to the second X-ray face receptor behind described detection region
Receive on plate;
Second X-ray face receptor, is oppositely arranged with described second X source, throws the face to its reception plate in order to receive the second X source
Image;
Synchronous segmenting elevating mechanism, in order to realize described first X source, the first X-ray face receptor, the second X source, the second X-ray
The synchronous segmenting of face receptor in the vertical direction rises or synchronous segmenting declines;And
Controller, in order to control described synchronous segmenting elevating mechanism drive described first X source, the first X-ray face receptor, second
In the section of X source, the second X-ray face receptor synchronizing moving extremely some differing heights, it is described that control is in corresponding section
First X source and the second X source launch X-ray, to receive the whole of plate at the first X-ray face receptor and the second X-ray face receptor
Acquisition face image on individual plate face, thus face, the pre-detection position figure that the first X-ray face that obtains is corresponding with the second whole section in X-ray face
Picture;
It is preset with the dosimetry parameter that each section is made film with loxosis in normotopia film making, the film making of position, side in described controller, controls an X
Light source, the second X source launch X-ray when corresponding shooting angle and corresponding section by the dosimetry parameter preset.
2. double X-ray machine system as claimed in claim 1, it is characterised in that with normotopia film making, the side of a default wherein section
The dosimetry parameter that position film making and loxosis are made film is as reference value, and the dosimetry parameter of remaining section is the phase on the basis of this reference value
To the numerical value of value, reference value and relative value according to the thickness of the different section of different human body and volume distributed median depending on.
3. double X-ray machine system as claimed in claim 2, it is characterised in that described section is followed successively by head and neck section, breast from top to bottom
Abdomen section, waist hip section, knee joint section, lower limb foot section, each section preset in described controller is made film with loxosis in normotopia film making, the film making of position, side
Dosimetry parameter include: normotopia film making in, the dosimetry parameter in head and neck section is reference value 1.0, and the dosimetry parameter in chest and abdomen section is
The relative value 1.1~1.7 of reference value, the relative value that dosimetry parameter is reference value 0.9~1.5 of waist hip section, in the agent of knee joint section
Amount parameter is the relative value 0.6~1.2 of reference value, the relative value that dosimetry parameter is reference value 0.2~0.8 of lower limb foot section;Side
In the film making of position, the dosimetry parameter in head and neck section is reference value 1.0, the relative value that dosimetry parameter is reference value 1.8 of chest and abdomen section
~2.4, the relative value that dosimetry parameter is reference value 1.7~2.3 of waist hip section, in the phase that dosimetry parameter is reference value of knee joint section
To value 0.8~1.4, the relative value that dosimetry parameter is reference value 0.4~1.0 of lower limb foot section;In loxosis film making, in head and neck section
Dosimetry parameter is reference value 1.0, the relative value that dosimetry parameter is reference value 1.5~2.1 of chest and abdomen section, at the dosage of waist hip section
Parameter is the relative value 1.3~1.9 of reference value, the relative value that dosimetry parameter is reference value 0.7~1.3 of knee joint section, at lower limb foot
The relative value that dosimetry parameter is reference value 0.3~0.9 of section.
4. double X-ray machine system as claimed in claim 1, it is characterised in that controller is at corresponding shooting angle and corresponding section
Time obtain face image after carry out gradation of image analysis, according to gray value adjust preset each section normotopia film making, position, side clap
The dosimetry parameter that sheet is made film with loxosis, it is achieved the self study of dosimetry parameter.
5. the double X-ray machine systems as described in claim 1 or 2 or 3, it is characterised in that described controller receives outside input
Height mass parameter, adjusts each section preset in normotopia film making, the film making of position, side and loxosis according to different height mass parameters
The dosimetry parameter of film making.
6. double X-ray machine system as claimed in claim 1, it is characterised in that described controller includes intermittent type X-ray emission control
Unit: be closed in whole motor process in order to control described first X source and the second X source, do not launch X-ray,
Control the first X source and the second X source to start after completing to position to corresponding section, launch X-ray by the dosimetry parameter preset.
7. the control method of double X-ray machine systems, it is characterised in that comprise the following steps:
S1: preset different section at normotopia film making, the film making of position, side and the dosimetry parameter of loxosis film making;
S2: stand angle adjustment shooting angle parameter according to pre-detection position, and control two X source and X-ray face receptor are moved
Move to the section of required shooting;
S3: control X source and launch X-ray by the dosimetry parameter under the corresponding shooting angle preset and corresponding section, required to obtain
The face image of detection.
8. the control method of double X-ray machine system as claimed in claim 7, it is characterised in that also wrapped before described step S1
Include step S11: determine default dosimetry parameter, according to thickness and/or the volume distributed median of the different sections of different human body, determine each
Thickness between section and/or volume ratio, with normotopia film making, the film making of position, side and the loxosis film making of a default wherein section
Dosimetry parameter is as reference value, and the dosimetry parameter of remaining section is the relative value on the basis of this reference value, and reference value is with relative
Ratio between value is consistent with this thickness and/or volume ratio.
9. the control method of double X-ray machine system as claimed in claim 8, it is characterised in that described section is the most successively
For head and neck section, chest and abdomen section, waist hip section, knee joint section, lower limb foot section, each section preset in described controller is clapped in normotopia film making, position, side
The dosimetry parameter that sheet is made film with loxosis includes: in normotopia film making, the dosimetry parameter in head and neck section is reference value 1.0, in chest and abdomen section
The relative value that dosimetry parameter is reference value 1.1~1.7, waist hip section the relative value that dosimetry parameter is reference value 0.9~
1.5, the relative value that dosimetry parameter is reference value 0.6~1.2 of knee joint section, the dosimetry parameter in lower limb foot section is the relative of reference value
Value 0.2~0.8;In the film making of position, side, the dosimetry parameter in head and neck section is reference value 1.0, and the dosimetry parameter in chest and abdomen section is reference
The relative value 1.8~2.4 of value, the relative value that dosimetry parameter is reference value 1.7~2.3 of waist hip section, the dosage in knee joint section is joined
Number is the relative value 0.8~1.4 of reference value, the relative value that dosimetry parameter is reference value 0.4~1.0 of lower limb foot section;Loxosis is clapped
In sheet, the dosimetry parameter in head and neck section is reference value 1.0, chest and abdomen section the relative value that dosimetry parameter is reference value 1.5~
2.1, the relative value that dosimetry parameter is reference value 1.3~1.9 of waist hip section, the dosimetry parameter in knee joint section is the relative of reference value
Value 0.7~1.3, the relative value that dosimetry parameter is reference value 0.3~0.9 of lower limb foot section.
10. the control method of double X-ray machine system as claimed in claim 7, it is characterised in that also include step S12: dosage is joined
The self study that number adjusts, is carried out after performing described step S1~the S3 acquisition face image when corresponding shooting angle and corresponding section
Gradation of image is analyzed, and analyzes the gray value obtained and compares with gray threshold, according to pre-in gray value comparative result set-up procedure S1
If each section normotopia film making, position, side film making with loxosis film making dosimetry parameter.
The control method of 11. double X-ray machine systems as claimed in claim 10, it is characterised in that before described step S12 also
Including step S121: dosimetry parameter adjusts the segmentation of standard, obtains multiple pre-detection object samples, according to the personalized ginseng of sample
Number is classified, and determines the different gray thresholds of Different categories of samples.
The control method of the 12. double X-ray machine systems as described in any one in claim 7-11, it is characterised in that also include
Step S13: the dosimetry parameter towards pre-detection object regulates, it is thus achieved that the height mass parameter of pre-detection object, according to different
Height mass parameter adjusts each section preset at normotopia film making, the film making of position, side and the dosimetry parameter of loxosis film making.
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