CN108135549A - Bone densitometry device - Google Patents
Bone densitometry device Download PDFInfo
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- CN108135549A CN108135549A CN201580083723.5A CN201580083723A CN108135549A CN 108135549 A CN108135549 A CN 108135549A CN 201580083723 A CN201580083723 A CN 201580083723A CN 108135549 A CN108135549 A CN 108135549A
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- foot
- angle
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- inspection
- inward turning
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 64
- 238000000326 densiometry Methods 0.000 title claims abstract description 47
- 238000007689 inspection Methods 0.000 claims abstract description 71
- 238000003860 storage Methods 0.000 claims abstract description 35
- 230000037182 bone density Effects 0.000 claims description 18
- 210000002683 foot Anatomy 0.000 description 90
- 239000000758 substrate Substances 0.000 description 25
- 210000000689 upper leg Anatomy 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 11
- 150000003839 salts Chemical class 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 210000003811 finger Anatomy 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 208000009438 Coxa Valga Diseases 0.000 description 2
- 208000002970 Coxa Vara Diseases 0.000 description 2
- 210000002436 femur neck Anatomy 0.000 description 2
- 210000004394 hip joint Anatomy 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000009987 spinning Methods 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The bone densitometry device of the present invention has the fixed appliance that the foot of subject is fixed relative to the angle of X-ray shooting system in a manner of it can adjust, and inward turning angle as the angle of foot is inputted and is registered in inward turning angle registry (13a) with the inspection for next time.In addition, inspection history information of the storage with inward turning angle, reads the inspection history information corresponding with the subject as object when checking and exported, past inspection history information is thus retrieved when checking with the inspection for next time.In addition, each inspection history information is accordingly stored with each subject, therefore can be retrieved with the corresponding inward turning angle of subject as object when checking with checking together with history information.As a result, it is possible to carry out the positioning of the foot of identical inward turning angle in the inspection of same subject, it is improved in foot by shooting the reproducibility of the inspection carried out.
Description
Technical field
The present invention relates to a kind of bone densitometry devices for the measure that bone density is carried out by X-ray.
Background technology
In the X-ray at the foot of subject, such as carry out DXA (Dual Energy X-Ra y
Absorptiometry：Dual-energy source X-ray absorption) two X-ray beams with different energy peaks are utilized as method
It measures (for example, referring to patent document 1).Specifically, subject (patient) is made to lie low on top plate, by make foot's inward turning come
To thigh nearside vertically incident X-rays.The X-ray beam using two with different energy peaks is generated respectively in high voltage
Under the conditions of the image taken and the image taken under low voltage condition, obtain these images difference and generate subtract shadow figure
Thus picture selectively only beats in thigh in subtraction image.
Bone densities, the bone salts such as the bone salts that contains in the bone of fixed amount is quantitative can be obtained by the DXA methods is quantitatively
Represent the index of amount that (calcium, phosphorus etc.) mineral composition contains in bone.In order to which the bone densities such as bone salts is quantitative are accurately obtained,
Implement to make as described above foot's inward turning with the position alignment (positioning) to thigh nearside vertically incident X-rays.It is positioning
When, by using so that foot rotates to the dedicated fixed appliance that the state of inside is fixed, energy centered on heel
Enough photographies for definitely carrying out target.
Patent document 1：Japanese Unexamined Patent Publication 2012-254191 bulletins
Invention content
Problems to be solved by the invention
However, about previous fixed appliance, due to the angle (hereinafter referred to as " inward turning angle ") of foot be it is fixed,
Therefore there is no the structures of the inward turning angle for the foot for recording each subject in the previous device of bone densitometry.
The present invention is to complete in light of this situation, and its purpose is to provide a kind of inspections carried out in foot by shooting
The bone densitometry device that the reproducibility looked into is improved.
The solution to the problem
Inventor is conscientiously studied to solve the above-mentioned problems, and the results obtained are as follows insights.
That is, for fixed appliance, used in the past with the utensil of typical inward turning angle fixed foot portion.It is in fact, appropriate
Inward turning angle had differences according to the difference of subject.Therefore, present applicant has proposed can be fixed with arbitrary angle
Fixed appliance.In bone density inspection, regularly follow-up is important, and seeks high reproducibility.Appointed by using above-mentioned
The fixed appliance for angle of anticipating, can implement the bone density inspection under more appropriate positioning.In the inspection of same subject, base
Following opinion is obtained in the viewpoint for improving reproducibility：Need the positioning of progress equal angular every time.
In addition, in the case of carrying out the positioning of equal angular every time in the inspection of same subject, operator needs
Appropriate reference column, memorandum to be utilized to prestore each inward turning angle, in case the inspection of next time.Therefore, it also obtains following
Opinion：If have the registration unit of the angle of registration foot or have the inspection history note of angle of the storage with foot
The storage unit of information is recorded, and be somebody's turn to do corresponding with the subject as object when checking is read from the storage unit when checking
It checks that history information is simultaneously exported, then can save and utilize appropriate reference column, memorandum address book stored each inward turning angle
Time.
The present invention based on this opinion is using such as lower structure.
That is, the bone densitometry device (the former) of the present invention is close by the bone of the measure of X-ray progress bone density
Spend measurement device, which is characterized in that have：Fixed appliance, by the foot of subject relative to the angle of X-ray shooting system
It is fixed in a manner of it can adjust；And registration unit, register the angle of the foot.
Bone densitometry device (the former) according to the present invention, has the foot of subject relative to X-ray system
The fixed appliance that the angle of system is fixed in a manner of it can adjust registers the angle of foot with the inspection for next time.Its
As a result, it is possible to the positioning of the foot of equal angular is carried out in the inspection of same subject, in foot by shooting the inspection carried out
The reproducibility looked into is improved.
In addition, the bone densitometry device (the latter) of the invention different from the former is to carry out bone density by X-ray
Measure bone densitometry device, which is characterized in that have：Fixed appliance takes the photograph the foot of subject relative to X ray
The angle of shadow system is fixed in a manner of it can adjust；Storage unit, the inspection of angle of the storage with the foot are gone through
The Records of the Historian records information；And output control unit, it is read and the quilt as object when checking from the storage unit when checking
The corresponding inspection history information of a specimen is simultaneously exported.
Bone densitometry device (the latter) according to the present invention, has in the same manner as the bone densitometry device of the former invention
The standby fixed appliance that the foot of subject is fixed relative to the angle of X-ray shooting system in a manner of it can adjust,
(retrieval) past inspection history information is read when checking with the inspection for next time.In addition, each inspection history
Record information accordingly stored with each subject, therefore can will with as check when object subject it is corresponding
The angle of foot is read (retrieval) with checking together with history information.As a result, it is possible in the inspection of same subject into
The positioning of the foot of row equal angular is improved in foot by shooting the reproducibility of the inspection carried out.
In the bone densitometry device of the invention of the latter, in the same manner as the bone densitometry device of the former invention,
Can have the registration unit of the angle of registration foot.That is, using the angle for the foot registered as inspection historical record letter
It ceases and by the storage to storage unit of each subject.
Alternatively, it is also possible to be, the bone densitometry device of the former invention have registration unit, the latter invention bone
In the case that density measuring device has registration unit, registration unit is input unit, is inputted and is registered using the input unit
The angle of foot.Operator can utilize input unit to input and manually register the angle of foot.It is of course also possible to
The arithmetic elements such as central processing unit (CPU) form registration unit, and registration unit is received by angular transducer (angle of inclination
Sensor) it the obtained angle of foot and is automatically registered.Furthermore it is also possible to it will register manually and register both automatically
Mode combines.
In addition, foot in the bone densitometry device of the invention of the bone densitometry device and the latter of the former invention
An example of angle is the inward turning angle of foot.In addition to this, the angle of foot can also be femoral neck axis and thigh
Axis angulation (is known as " collodiaphyseal angle ").
It in addition, can also in the bone densitometry device of the invention of the bone densitometry device and the latter of the former invention
Have image generation unit, the image generation unit image that is taken under high voltage condition of acquisition under low voltage condition
The difference of the image taken generates subtraction image.In the case of the image generation unit for having generation subtraction image, subtracting
It is selectively only clapped in shadow image into thigh, therefore the bone densitometry for the bone densities such as bone salts is quantitative are obtained.Particularly,
Bone density and the angle of foot (such as inward turning angle) are there are close correlativity, applied to the figure for having generation subtraction image
As the device of generation unit (carrying out subtracting shadow) is useful.(without the subtracting shadow) that can also be applied in addition to this is common
Bone densitometry device.
The effect of invention
According to bone densitometry device (the former) according to the present invention, has the foot by subject relative to X ray
The fixed appliance that the angle of camera chain is fixed in a manner of it can adjust registers the angle of foot with the inspection for next time
It looks into.As a result, it is improved in foot by shooting the reproducibility of the inspection carried out.
In addition, the bone densitometry device (the latter) according to involved by the invention different from the former invention, has quilt
The fixed appliance that the foot of a specimen is fixed relative to the angle of X-ray shooting system in a manner of it can adjust, Ge Gejian
History information is looked into accordingly store with each subject, thus can using with as check when object subject
The angle of corresponding foot is read (retrieval) with checking together with history information.As a result, in foot by shooting what is carried out
The reproducibility of inspection is improved.
Description of the drawings
Fig. 1 is the block diagram of the bone densitometry device involved by embodiment.
(a) of Fig. 2~(c) is the integrally-built stereogram of fixed appliance.
Fig. 3 is the stereogram of the goniometer of fixed appliance.
Fig. 4 is the side view of the fixation band of fixed appliance.
Fig. 5 is the mode of the registration of the inward turning angle carried out using input unit.
Fig. 6 is the femoral schematic diagram related with collodiaphyseal angle.
Fig. 7 is the block diagram of the bone densitometry device involved by variation.
Specific embodiment
In the following, it is explained with reference to the embodiment of the present invention.Fig. 1 is the bone densitometry device involved by embodiment
Block diagram, (c) of (a)~Fig. 2 of Fig. 2 is the integrally-built stereogram of fixed appliance, and Fig. 3 is the vertical of the goniometer of fixed appliance
Body figure, Fig. 4 are the side views of the fixation band of fixed appliance.In the present embodiment, it is close using the bone for subtracting shadow based on DXA methods is carried out
Degree measurement device illustrates as an example, and as the angle of foot, using foot inward turning angle as an example come
It illustrates.
As shown in Figure 1, bone densitometry device has：Top plate 1, mounting subject M；X-ray tube 2, towards the quilt
Specimen M X-ray irradiations；And plate type X-ray detector (hreinafter referred to as " FPD ") 3, detection have penetrated subject M's
X ray.The irradiation side of X-ray tube 2 setting include high voltage mode use with the two kinds of wave filter 21 of low voltage mode,
Two X-ray beams with different energy peaks are irradiated by switching filter 21 respectively.
Bone densitometry device is also equipped in addition to this：The lifting of controlroof 1 and the Roof Control portion 4 moved horizontally,
The high voltage generating unit 6 of the FPD control units 5 of the scanning of control FPD 3, the tube voltage with generation X-ray tube 2 and tube current
X-ray tube control unit 7 takes out the x-ray detection signal as charge signal and the A/D converter being digitized from FPD 3
8th, it generates the image production part 9 of subtraction image based on the x-ray detection signal exported from A/D converter 8, be uniformly controlled these
The inspection history information of the generated subtraction image of the controller 10 of each structural portion, storage and aftermentioned each subject M
Deng memory portion 11, input unit 12, the processed image of display etc. that carry out for operator input setting prison
Visual organ 13 etc..Image production part 9 is equivalent to the image generation unit of the present invention, and controller 10 is equivalent to the output control of the present invention
Unit, input unit 12 are equivalent to the input unit of the present invention.In addition, input unit 12 also corresponds to the registration unit of the present invention.
Roof Control portion 4 carries out following control etc.：Top plate 1 is made to be moved horizontally subject M receivings to camera positions
Putting, which either makes top plate 1 be lifted, rotated and be moved horizontally, is set in desired position by subject M or is photographing
After top plate 1 is made to be moved horizontally and kept out of the way from camera positions.By controlling by motor, encoder (illustration omitted) etc.
The top plate driving mechanism (illustration omitted) of composition carries out these controls.
FPD control units 5 carry out following control etc.：FPD 3 is moved horizontally to accommodate the FPD 3 and X ray
The opposite camera positions of pipe 2 make FPD 3 be moved horizontally and kept out of the way from camera positions after photography.Pass through control
System carries out these by the FPD driving mechanisms (illustration omitted) of the compositions such as rack, gear, motor, encoder (illustration omitted)
Control.
High voltage generating unit 6 generates tube voltage needed for X-ray irradiation, tube current and is applied to X-ray tube 2.X-ray tube
Control unit 7 carries out following control etc.：Make X-ray tube 2 moved horizontally the X-ray tube 2 is accommodated it is opposite with FPD 3
Camera positions make X-ray tube 2 be moved horizontally and kept out of the way from camera positions after photography.By controlling by propping up
The X-ray tube driving portions (illustration omitted) of the compositions such as column, screw bar, motor, encoder (illustration omitted) carries out these controls
System.In addition, X-ray tube control unit 7 switches over the control of wave filter 21.By controlling such as turntable (illustration omitted)
The wave filter driving portion (illustration omitted) of composition carries out the control.
Controller 10 is made of central processing unit (CPU) etc., and memory portion 11 is by with ROM (Read-only
Memory：Read-only memory), RAM (Random-Access Memory：Random access memory) etc. be representative storage medium
Deng composition.In addition, input unit 12 is by the indicating equipment structure with mouse, keyboard, control stick, tracking ball, touch panel etc. for representative
Into.In the same manner as controller 10, Roof Control portion 4, FPD control units 5, X-ray tube control unit 7 are also made of CPU etc..
In addition, in the present embodiment, controller 10 is stored when checking from the inspection history information in memory portion 11
Device portion 11a reads inspection history information corresponding with the subject M as object when checking and is exported.In this reality
It applies in example, controller 10, which is controlled such that export in monitor 13, shows the inspection history information.
In addition, in the present embodiment, memory portion 11, which has, checks history information memory portion 11a, which goes through
The inspection history information of inward turning angle of the Records of the Historian record information memory portion 11a storages with foot.In the present embodiment, will
Remember by the use of the inward turning angle that input unit 12 is registered as inspection history information and by each subject M storages to inspection history
It records in information memory portion 11a.As the inspection history information other than inward turning angle, for example there is check data and when
Between, photography conditions, subject information (name, birthdate etc.) etc..Check that history information memory portion 11a is equivalent to
The storage unit of the present invention.
In addition, in the present embodiment, input unit 12 is structured to input and registers inward turning angle.It describes in detail hereinafter
Utilize the registration for the inward turning angle that input unit 12 carries out.
Image production part 9 is obtained based on through the x-ray detection signal exported after the wave filter 21 of high voltage mode
The image taken under high voltage condition based on the X-ray detection exported after the wave filter 21 for penetrating low voltage mode with being believed
Number the image taken under low voltage condition difference.It generates the image of difference got like this and is used as subtraction image.
Image production part 9 is made of subtracter etc..
The bone densities such as bone salts is quantitative are obtained based on the subtraction image generated like this.Such as " for the side solved the problems, such as
It is arbitrary by using Fig. 2~shown in Fig. 4 in order to which bone density is accurately obtained as also being described in the opinion on a case " column
The fixed appliance 30 (also referring to Fig. 1) of angle, can implement the bone density inspection under more appropriate positioning.Fixed appliance 30 is
As shown in (c) of (a)~Fig. 2 of Fig. 2 with two hinges 33 by bone densitometry device towards top plate 1 (with reference to Fig. 1)
Substrate 31 and plate fixing component 32 be combined obtained from structure.Hinge is packed between substrate 31 and fixing component 32
Chain 33, thus fixing component 32 can be relative to the progress moving in rotation of substrate 31.Fixed appliance 30 is equivalent to the fixation of the present invention
Utensil.
Substrate 31 is the component of the plate of rectangle.Fixing component 32 is fixed in the subject M (ginsengs for being placed in top plate 1
According to Fig. 1) foot (part of ankle to tiptoe) plate.Fixing component 32 is also the component of the plate of rectangle, is long side direction
One side (being base in (a) of Fig. 2 and (b) of Fig. 2) be installed in the structure of hinge 33.Fixing component 32 this on one side with
The rotary shaft of hinge 33 is parallel.The hinge 33 is the component for linking substrate 31 and fixing component 32.
Hinge 33 is torsional moment hinge.Thus, when fixing component 32 is made to tilt to some angle, hinge 33 to antigravity and
Maintain the angle of inclination.Thus, hinge 33 becomes and does not change fixing component 32 before operator is to 32 applied force of fixing component
Inclined structure.In this way, hinge 33, which becomes, maintains structure of the fixing component 32 relative to the angle of inclination of substrate 31.
It is opposite on one side (being base in (a) of Fig. 2 and (b) of Fig. 2) with being installed on hinge 33 of fixing component 32
The another side (being top in (a) of Fig. 2 and (b) of Fig. 2) of side is equipped with the handle of operator as shown in (a) of Fig. 2
Hand 34.Operator can hold the spinning movement that component 32 is fixed in the handle 34.
When the fixing component 32 that (b) of Fig. 2 illustrates the state of (a) that makes Fig. 2 is rotated relative to substrate 31
State, (c) of Fig. 2 illustrate state when making the fixing component 32 rotate to the position parallel with substrate 31 of fixing component 32.This
When hinge 33 be folded and be moved to the position that two fins are clipped by substrate 31 and fixing component 32.Then, fixing component
The another side of 32 one side opposite side with being provided with hinge 33 is protruded from substrate 31.In this way, the hinge 33 of fixed appliance 30
Can tilt to makes fixing component 32 parallel with substrate 31.In addition, the figure of handle 34 is omitted in (b) of Fig. 2 and (c) of Fig. 2
Show.
As shown in (c) of (a)~Fig. 2 of Fig. 2, rectangular buffering is respectively arranged in substrate 31 and fixing component 32
Plate 35,36.Buffer board 36 is arranged to be covered in the face of the face opposite side with being provided with hinge 33 in fixing component 32, delays
Punching 35 is arranged to, when fixing component 32 is rotated as (c) of Fig. 2 to the position parallel with substrate 31 of fixing component 32
When, cover the upper surface of the vertical of substrate 31 upward in a manner of the part for avoiding being covered and can not be seen by fixing component 32.
Being provided with the part of the buffer board 35 becomes the backing plate of foot of substrate 31, consistent with supporting the part of downside of foot.
Buffer board 35,36 is made of the component with resiliency.When the part for pressing with finger buffer board 35,36,
The part of pressing is deformed in a manner of recessed and applies the repulsion to be pushed back to finger.When by finger from buffer board 35,36 from
When opening, the recessed disappearance of the part of pressing reverts to the state before pressing with finger.The setting of substrate 31, fixing component 32
There is the face of buffer board 35,36 as shown in Figure 4 as the face of the foot side of subject.
The illustration is omitted in (c) of (a)~Fig. 2 of Fig. 2, but fixed appliance 30 (with reference to Fig. 2) has as shown in Figure 3
There is goniometer of the display fixing component 32 (with reference to Fig. 2) relative to the angle of inclination of substrate 31 (with reference to Fig. 2).As shown in figure 3, angle
Degree meter has the angle being arranged to from the fan-shaped protractor 37 and instruction protractor 37 of outer side covering hinge 33 (with reference to Fig. 2)
The label 38 of degree.Protractor 37 is arranged on the both ends of substrate 31, is integrally formed with substrate 31.Label 38 is arranged on fixation
The both ends in the face of the fin for being provided with hinge 33 of component 32.Thus, there are two shown in Fig. 3 in both ends tool for fixed appliance 30
Goniometer.
When fixing component 32 is made to be tilted relative to substrate 31, label 38 is followed fixing component 32 and is moved, therefore marks
Note 38 and the position relationship of protractor 37 change.Angle on protractor 37 and fixation indicated by the arrow marked on label 38
Component 32 is consistent relative to the angle of inclination of substrate 31.
In addition, though the illustration is omitted in figure 2 and figure 3, but fixed appliance 30 has fixed band 39, and the fixation band 39 is logical
Cross makes the foot of subject be integrally formed with fixing component 32 as shown in Figure 4 is fixed on fixed structure by the foot of subject
Part 32.Fixed band 39 is made of the cricoid component that the contractile material of apparatus is formed.The fixation band 39 is by the foot of subject
Portion and fixing component 32 bundle.Fixed band 39 has shrinkage, therefore to bundle the foot of subject and fixing component
32 state is shunk.Then, the power that be integrally formed the two is applied to the foot of subject and fixing component 32.Pass through this
Sample, the foot of subject are fixed in fixing component 32.When fixing component 32 is made to be tilted relative to substrate 31 in this state,
The foot of subject is tilted with the inclination.Also it can will be detected by unloading the fixation band 39 from 30 main body of fixed appliance
The foot of body is detached from fixing component 32.
At this point, the side surface part of the side where the thumb of the foot of subject is connected to the buffer board 36 with resiliency,
Hard fixing component 32 will not directly be abutted.In addition, the heel of the foot of subject is connected to the buffer board with resiliency
35, it will not directly abut hard substrate 31.
In the measure that bone density is carried out by X-ray, first, so that Fig. 2 and fixed appliance shown in Fig. 4 30
Fixing component 32 loads substrate 31 for the mode of the upside of substrate 31 towards top plate 1 (with reference to Fig. 1).Then, by subject M
(with reference to Fig. 1) is placed in top plate 1, in the foot of the quantitative one leg of bone salts to be carried out, abuts heel as shown in Figure 4
In buffer board 35, and the side surface part of the side where the thumb of foot is made to be connected to buffer board 36.In this state using solid
Determine band 39 and foot is fixed on fixing component 32.
Operator makes X-ray tube 2 and FPD 3 be moved to the camera positions of hip joint (with reference to Fig. 1).From X-ray tube 2
The perspective picture into hip joint is clapped in the X ray of the irradiation dosage lower than the dosage of X-ray, in real time display.When operation is grasped
Author on one side confirm perspective as while X-ray tube 2 and FPD 3 is made to be moved relative to subject M when, have an X-rayed clapped as on into picture chase after
It is moved with the movement.In this way, operator can carry out the adjusting of position so that involved by bone salts is quantitative
Femoral bone comes the immediate vicinity of photography visual field.
After being adjusted in femoral position, stop the real-time photography of perspective picture.Operator holds (a) of Fig. 2
Handle 34, fixing component 32 is made to rotate to the angle (inward turning angle) to thigh nearside vertically incident X-rays.It follows solid
Determine the rotation of component 32, foot rotates (i.e. inward turning) inwardly centered on heel.Such as in " solution to the problem "
As also being described in the opinion on one column, appropriate inward turning angle has differences according to the difference of subject M.
In the case where the past has carried out the inspection of bone densitometry to same subject M, from inspection history information
Memory portion 11a reads inspection history information corresponding with the subject M as object when checking, control (with reference to Fig. 1)
Device 10 processed is controlled such that (with reference to Fig. 1) shows the inspection history information in the output of monitor 13 (with reference to Fig. 1).It checks
History information has the inward turning angle of foot, therefore inward turning angle corresponding with the subject M as object when checking
Also display is exported by monitor 13.
Operator confirms the inward turning for such as inspection starting image (illustration omitted) that monitor 13 is shown in by output
Angle, to implement to position.Specifically, the inward turning angle of inspection starting image of the operator on it confirmed monitor 13
Later rotated fixing component 32, the angle on the protractor 37 indicated by the arrow that is marked on the label 38 of Fig. 3
Until consistent with the inward turning angle.If making the rotation of fixing component 32 extremely consistent with inward turning angle, terminate to position.
On the other hand, in the case where the past did not once also carry out the inspection of bone densitometry to same subject M,
Carry out the registration of inward turning angle (with reference to Fig. 1) using input unit 12 in positioning.Therefore, operator revolves fixing component 32
Turn so that the knee of subject M is upward towards vertical.Then, terminate positioning.Indicated by the arrow marked on label 38 at this time
Protractor 37 on angle it is consistent with the inward turning angle to be registered.
It is illustrated with reference to the registration of inward turning angles of the Fig. 5 to being carried out using input unit 12 (with reference to Fig. 1).Fig. 5 is to utilize
The mode of the registration for the inward turning angle that input unit carries out.
As shown in figure 5, it sets to register (storage) on such as analysis picture 13A of monitor 13 (also referring to Fig. 1)
The inward turning angle registry 13a of inward turning angle.In addition to this, it is preferably provided for the identification of each subject of registration (storage)
The subject registry 13b of number or identifier (symbol, word).In addition, as the inspection history note other than inward turning angle
Information is recorded, such as can also set that (storage) check data and time, photography conditions, (name goes out subject information for registering
Raw date etc.) etc. project (illustration omitted).
Angle on protractor 37 indicated by the arrow marked on the label 38 of Fig. 3 is confirmed as inward turning by operator
Angle, and the inward turning angle is inputted and is registered in inward turning angle registry 13a using input unit 12 (with reference to Fig. 1).For example,
Load button 13c is shown in picture 13A is analyzed, and cursor is directed at load button 13c, hand using the indicating equipment of input unit 12
Art operator utilizes input unit 12 to carry out the registration of inward turning angle by clicking load button 13c.In addition it is also possible to input
Portion 12 forms load button, and operator utilizes input unit 12 to carry out the registration of inward turning angle by pressing load button.
Alternatively, it is also possible to touch panel be made to play the function of input unit 12 simultaneously by using touch panel composition monitor 13, perform the operation
Operator utilizes input unit 12 to carry out the registration of inward turning angle by touching the load button of touch panel.
At this point, in the case where setting subject registry 13b, using input unit 12 to subject registry 13b
Input and register the identiflication number or identifier of subject.Then, by the identiflication number of subject whenever inward turning angle is registered
Or identifier with the inward turning angle is written and stores and checks the portion's 11a (references of history information memory associated with each other
In Fig. 1), it is used as the inspection history information of each subject.It is gone through in the inspection of the bone densitometry of next time from inspection
Records of the Historian record information memory portion 11a reads inspection history information corresponding with the subject M as object when checking, and
Inspection starting image output display on monitor 13.
Back to the explanation of Fig. 1.Terminate position after, when operator via input unit 12, again via controller
When 10 pairs of X-ray tube control units 7 apply the instruction of X-ray, the dosage stronger than the dosage for having an X-rayed picture is irradiated from X-ray tube 2
X ray.Switch mutually between the wave filter 21 of high voltage mode low voltage mode, so as to distinguish from X-ray tube 2
The X ray of wave filter 21 is shone through.
FPD 3 detects the X ray for the wave filter 21 for having penetrated high voltage mode, via A/D converter 8 as in height
The image taken under voltage conditions is sent into image production part 9, and detects the X for the wave filter 21 for having penetrated low voltage mode
Ray is sent into image production part 9 via A/D converter 8 as the image taken under low voltage condition.Image production part
The image and the difference of the image taken under low voltage condition that 9 acquisitions take under high voltage condition subtract shadow figure to generate
Picture.The bone densities such as bone salts is quantitative are obtained into femoral subtraction image based on selectively only clapping.
Bone densitometry device according to involved by the present embodiment has the foot by subject M relative to X-ray
The fixed appliance 30 that the angle of system is fixed in a manner of it can adjust, register foot angle (in the present embodiment for
The inward turning angle of foot) with the inspection for next time.As a result, it is possible to carry out equal angular in the inspection of same subject M
The positioning of the foot of (inward turning angle) is improved in foot by shooting the reproducibility of the inspection carried out.
In addition, in the present embodiment, have：Storage unit is (in the present embodiment to check history information memory
Portion 11a), the inspection history information of angle (inward turning angle) of the storage with foot；And output control unit is (at this
Device 10 in order to control in embodiment), when checking from the storage unit (checking history information memory portion 11a) read with
As check when object the corresponding inspection history informations of subject M and exported (in the present embodiment for
The output of monitor 13 display).(retrieval) past inspection history information is read when checking with the inspection for next time.
In addition, it is each inspection history information accordingly stored with each subject M, therefore can using with as check when
The angle (inward turning angle) of the corresponding foots of subject M of object is read (retrieval) with checking together with history information.It is tied
Fruit can carry out the positioning of the foot of identical angle (inward turning angle) in the inspection of same subject M, pass through bat in foot
The reproducibility for taking the photograph the inspection of progress is improved.
In addition, in the present embodiment, using the angle registered (inward turning angle) as inspection history information and by every
In a subject M storages to storage unit (checking history information memory portion 11a).
In the present embodiment, registration unit is input unit (being in the present embodiment input unit 12), utilizes the input list
First (input unit 12) inputs and registers the angle (inward turning angle) of foot.Operator can utilize input unit (input unit
12) input and manually register the angle (inward turning angle) of foot.In the present embodiment, the angle of foot is the interior swing angle of foot
Degree.
In the present embodiment, has the image for obtaining and being taken under high voltage condition with being taken under low voltage condition
The difference of image generate the image generation unit of subtraction image (being in the present embodiment image production part 9).In such as this implementation
In the case that example has the image generation unit (image production part 9) of generation subtraction image like that, the selectivity in subtraction image
Ground is only clapped into thigh, therefore the bone densitometry for the bone densities such as bone salts is quantitative are obtained.Particularly, bone density and foot
There are close correlativity between angle (such as inward turning angle as the present embodiment), therefore subtract shadow applied to having generation
The device of the image generation unit (image production part 9) (carrying out subtracting shadow) of image is useful.
Present invention is not limited to the embodiments described above, can deform and implement as described below.
(1) in the above-described embodiment, as bone densitometry device, made using the device for using DXA methods subtract shadow
It is illustrated for example, but the common bone densitometry device without subtracting shadow can also be applied to.
(2) in the above-described embodiment, (it is in embodiment foot to read the angle of the foot with subject
Inward turning angle) inspection history information and exported, and Fig. 1 monitor 13 output show the inspection historical record
Information, but can also be exported in printer (illustration omitted) and print the inspection history information.
(3) in the above-described embodiment, the angle as the foot of subject, using foot inward turning angle as an example
It is illustrated, but as long as being the angle of foot, is just not limited to the inward turning angle of foot.For example, as shown in fig. 6, foot
Angle can also be femoral neck axis A and thigh axis of bone B angulations (collodiaphyseal angle) θ.Compare normal condition in collodiaphyseal angle
In the case of big, thigh extends outwardly as coxa valga, and in the case where collodiaphyseal angle is smaller than normal condition, thigh is inside
Extend and become coxa vara.Thigh become coxa valga, coxa vara and while extending as the crow flies, can properly carry out bone
Salt quantifies.In the case where confirming collodiaphyseal angle, such as display in real time is clapped into femoral perspective picture, and operator is using admittedly
Determine utensil (illustration omitted) and adjust the foot of subject so that thigh extends as the crow flies, acquisition thigh prolongs as the crow flies in advance
The image for the state stretched.Then, collodiaphyseal angle is registered based on the measurement result of the collodiaphyseal angle from the image.
(4) in the above-described embodiment, it is inputted using input unit (being in embodiment input unit 12) and manually stepped on
Remember the angle (being in embodiment the inward turning angle of foot) of foot, but the fortune such as central processing unit (CPU) can also be used
It calculates unit and forms registration unit, angle (the interior swing angle that registration unit reception is obtained by angular transducer (gradient sensor)
Degree) and automatically registered.For example, as shown in fig. 7, the fixing component 32 in fixed appliance 30 is gentle (with reference to Fig. 2 and Fig. 4)
The side surface part of punching 36 (with reference to Fig. 2 and Fig. 4) has the angular transducer 40 being made of Magnetic Sensor, is formed and transported with controller 10
Unit is calculated, controller 10 receives the angle (inward turning angle) obtained by angular transducer 40 and automatically registered.In addition,
It will can manually register and register both modes automatically and combine.
(5) in the above-described embodiment, the angle for having the foot of registration subject (is in embodiment the inward turning of foot
Angle) registration unit (being in embodiment input unit 12), and have storage with the angle (inward turning angle) inspection
The storage unit (in embodiment be check history information memory portion 11a) of history information and when checking from
The storage unit (checking history information memory portion 11a) reads be somebody's turn to do corresponding with the subject as object when checking
It checks history information and the output control unit (device 10 in order to control in embodiment) exported, but foot can also be registered
The angle (inward turning angle) in portion is registered with independently having a guide look of display as the subject of object when checking or having a guide look of printing
Foot angle (inward turning angle).
(6) in the above-described embodiment, the angle for having the foot of registration subject (is in embodiment the inward turning of foot
Angle) registration unit (being in embodiment input unit 12), and have storage with the angle (inward turning angle) inspection
The storage unit (in embodiment be check history information memory portion 11a) of history information and when checking from
The storage unit (checking history information memory portion 11a) reads be somebody's turn to do corresponding with the subject as object when checking
It checks history information and the output control unit (device 10 in order to control in embodiment) exported, but can also will utilize
The inspection history information of the angle (inward turning angle) with foot of external device (ED) registration is stored to bone densitometry device
Storage unit (check history information memory portion 11a), (check history information from the storage unit when checking
Memory portion 11a) it reads the inspection history information corresponding with the subject as object when checking and is exported.
Industrial availability
As described above, the present invention is suitable for using DXA methods subtract the bone densitometry device of shadow.
Reference sign
9：Image production part；10：Controller；11a：Check history information memory portion；12：Input unit；13：Monitoring
Device；13A：Analyze picture；13a：Subject registry；30：Fixed appliance；M：Subject.
Claims (9)
1. a kind of bone densitometry device carries out the measure of bone density by X-ray, which is characterized in that have：
Fixed appliance is consolidated the foot of subject relative to the angle of X-ray shooting system in a manner of it can adjust
It is fixed；And
Registration unit registers the angle of the foot.
2. bone densitometry device according to claim 1, which is characterized in that
The registration unit is input unit,
The angle of the foot is inputted and registered using the input unit.
3. bone densitometry device according to claim 1 or 2, which is characterized in that
The angle of the foot is the inward turning angle of foot.
4. bone densitometry device according to any one of claims 1 to 3, which is characterized in that
Be also equipped with image generation unit, the image generation unit image that is taken under high voltage condition of acquisition in low-voltage
Under the conditions of the difference of image that takes generate subtraction image.
5. a kind of bone densitometry device carries out the measure of bone density by X-ray, which is characterized in that have：
Fixed appliance is consolidated the foot of subject relative to the angle of X-ray shooting system in a manner of it can adjust
It is fixed；
Storage unit, the inspection history information of angle of the storage with the foot；And
Output control unit reads be somebody's turn to do corresponding with the subject as object when checking when checking from the storage unit
It checks history information and is exported.
6. bone densitometry device according to claim 5, which is characterized in that
It is also equipped with registering the registration unit of the angle of the foot,
It is deposited using the angle for the foot registered as the inspection history information and by the storage of each subject to described
In storage unit.
7. bone densitometry device according to claim 6, which is characterized in that
The registration unit is input unit,
The angle of the foot is inputted and registered using the input unit.
8. the bone densitometry device according to any one of claim 5 to 7, which is characterized in that
The angle of the foot is the inward turning angle of foot.
9. the bone densitometry device according to any one of claim 5 to 8, which is characterized in that
Be also equipped with image generation unit, the image generation unit image that is taken under high voltage condition of acquisition in low-voltage
Under the conditions of the difference of image that takes generate subtraction image.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/072710 WO2017026046A1 (en) | 2015-08-10 | 2015-08-10 | Bone density measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108135549A true CN108135549A (en) | 2018-06-08 |
| CN108135549B CN108135549B (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580083723.5A Active CN108135549B (en) | 2015-08-10 | 2015-08-10 | Bone density measuring device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6627879B2 (en) |
| CN (1) | CN108135549B (en) |
| WO (1) | WO2017026046A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112914592A (en) * | 2021-02-25 | 2021-06-08 | 中国人民解放军陆军特色医学中心 | X-ray machine for rehabilitation examination of cerebral infarction hemiplegic patient and working method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6627879B2 (en) | 2020-01-08 |
| WO2017026046A1 (en) | 2017-02-16 |
| JPWO2017026046A1 (en) | 2018-05-31 |
| CN108135549B (en) | 2021-09-10 |
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