CN101773396B - DDR (digital data receiver) breast X-ray machine - Google Patents
DDR (digital data receiver) breast X-ray machine Download PDFInfo
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- CN101773396B CN101773396B CN 201010111723 CN201010111723A CN101773396B CN 101773396 B CN101773396 B CN 101773396B CN 201010111723 CN201010111723 CN 201010111723 CN 201010111723 A CN201010111723 A CN 201010111723A CN 101773396 B CN101773396 B CN 101773396B
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Abstract
The invention discloses a DDR (digital data receiver) breast X-ray machine which comprises an X ray tube (1) for emitting an X ray (2), a digital camera (5), as well as a breast compressor (3) and an image plate (4) which are arranged in a vertical correspondence. The image plate (4) is fixedly connected with a frame platform (6); a first front reflection mirror (7) which is fixedly connected with the frame platform (6) is arranged below the image plate (4); a second front reflection mirror (8) which is connected with the frame platform (6) in a sliding way is arranged on the frame platform (6) and is parallel to the first front reflection mirror (7); the imaging mirror surfaces of the first front reflection mirror (7) and the second front reflection mirror (8) are opposite in pairs; and the digital camera (5) rightly facing the imaging mirror surfaces of the second front reflection mirror (8) is fixedly connected with the second front reflection mirror (8). The DDR (digital data receiver) breast X-ray machine has excellent image definition and can ensure complete imaging of the roots of breast tissues.
Description
Technical field
The present invention relates to a kind of DDR breast X-ray machine.
Background technology
Medical DR (Digital Radiography) is that digital X-ray is taken the photograph sheet, along with development in science and technology, the particularly development of computer and new photosensitive material, traditional X ray are taken the photograph sheet (film simulation image) and are progressively substituted by digital X-ray shooting (DR).DR compares with former X-ray film has lot of advantages, and the DR major advantage has: a. improves picture quality by transferring window (WW, WL), sharpening, the image processing software technology such as level and smooth, is conducive to that pathological changes is found and diagnosis; B. can free cutting, make image meet the diagnosis requirement; C. favourable preservation; D. can print by digital laser, the film of printing is given patient, facilitates patient to seek medical advice, and loss can copy; E. digital picture can transmit on the net, accomplishes the advantages such as remote expert consultation.
Medical DR can be divided into two classes at present, and---direct-type (namely plate, minute non-crystalline silicon/amorphous selenium)---directly transfers radioscopic image to digital picture; Indirect type---the x-ray bombardment digital picture that (luminous plaque commonly used has cesium iodide, gadolinium oxysulfide etc.) made a video recording by digital camera (CCD or CMOS) on luminous plaque.Due to the development of CCD/CMOS digital camera technology, valid pixel has broken through 20,000,000; Image spatial resolution, can compare with DR, development trend further improves, the picture quality of indirect type DDR can surpass plate, this high-quality indirect-type DDR is specially adapted to Mammography, because more than image resolution ratio can be brought up to 10LP/mm, to generaI investigation and the early diagnosis of breast carcinoma, the early treatment has very large value.
We know, development along with society, the change of people's living habit (degradation under operating pressure rising, artificial abortion, breastfeeding rate), woman mammary gland disease, particularly the sickness rate of breast carcinoma is in rising trend, early diagnosis to breast carcinoma is cured in early days, is the unique method of decline Death Rate of Breast Cancer.
Domestic DR (plate) or DDR (indirect-type) the breast X-ray machine product of there is not yet.
External DR breast X-ray owner wants manufacturer that U.S. GE, U.S.-China's mutual benefit, Siemens and Italy, Finland etc. are arranged.Their DR all adopts non-crystalline silicon or amorphous selenium (plate).The image resolution ratio of this plate DR is decided by the size of the pixel cell of non-crystalline silicon/amorphous selenium, high-grade pixel cell can be accomplished 70 μ m, spatial resolution can reach 7LP/mm, non-crystalline silicon/amorphous selenium flat-bed size is exactly the visual field of image (FOV), the large pixel of platen area is many, and the platen area small pixel is few; Image spatial resolution is that constant (image of different sizes is with " shading " or image cropping piecemeal) do not exist the technical problem that the region of interest zoom is improved spatial resolution.
Due to non-crystalline silicon/amorphous selenium flat-bed complex manufacturing technology, expensive, general separate unit DR breast X-ray machine price is up to hundreds thousand of U.S. dollars; Therefore can't large-scale promotion use.
Existing indirect-type breast X-ray machine comprises corresponding mammary gland compressor 3, the image plate 4 that arranges of X-ray tube 1 and up and down of launching X ray 2 as shown in Figure 1, and image plate 4 can be made with cesium iodide or gadolinium oxysulfide; Digital camera 5 over against image plate 4 is set below image plate 4.During actual the use, tested breast 100 is placed on image plate 4, regulates mammary gland compressor 3, thus make as far as possible tested breast 100 be crushed, ironed.Digital camera 5 is responsible for taking X ray 2 and is made tested breast 100 formed image on image plate 4, forms at last required digital picture.It exists following defective in actual use:
Due to the diversity of human body, it is more that the size of breast also differs; In order to possess versatility, existing indirect-type breast X-ray machine is to design for the large breast that may exist (huge breast); When detecting breast with this kind indirect-type breast X-ray machine, be divided into following 3 kinds of situations:
1), when tested breast 100 is huge when breast, shooting results is as shown in Fig. 2 a; At this moment, tested breast 100 occupies most of position of image;
2), when tested breast 100 is conventional size, shooting results is as shown in Fig. 2 b; At this moment, tested breast 100 only occupies the sub-fraction position of image;
3), when tested breast 100 is micromazia, shooting results is as shown in Fig. 2 c, at this moment, tested breast 100 only occupies very little a part of position of image;
Above-mentioned the 2nd kind of situation and the 3rd kind of situation all cause the major part of image well not utilized.In order to make image well be utilized (thereby promoting clearness), people change focal length by adjustable lens and regulate the imaging area of tested breast 100 in image.But it can cause following defective:
1, above-mentioned common zoom is the size that changes image centered by the optical center, so the surrounding of image can change equably, can cause the disappearance of breast tissue root in image this moment, is difficult to when carrying out zoom namely guarantee that the breast tissue root is within the visual field.And we all know: the mammary gland tissue root is one of main detection foundation of cystic hyperplasia of breast; Therefore above-mentioned common zoom can cause doctor's mistaken diagnosis.
If wish that the breast tissue root appears in image, also need to rely on the relative position relation of shooting experience artificial adjusting digital camera 5 and image plate 4; So not only make operation become very complicated, also be difficult to strict guarantee breast tissue root not lacking in image.
2, most of zoom lens aperture slot when focal length changes can change, and aperture slot has tailed off when by zoom, at a distance image being furthered, and time of exposure is elongated, and the irradiation time of X ray also needs to lengthen, and this is disadvantageous to patient.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of image definition is good, the complete imaging that can guarantee the mammary gland tissue root, be applicable to the DDR breast X-ray machines of different large micromazias.
In order to solve the problems of the technologies described above, the invention provides a kind of DDR breast X-ray machine, comprise corresponding mammary gland compressor and the image plate that arranges in X-ray tube, digital camera and up and down of launching X ray, image plate and frame platform are fixedly linked, the the first front anti-mirror that is fixedly linked with the frame platform is set below image plate, the the second front anti-mirror that slides and be connected with the frame platform also is set on the frame platform, and the imaging minute surface that the second front anti-mirror is parallel to the first front anti-mirror and the first front anti-mirror and the second front anti-mirror is relative in twos; Digital camera and the second front anti-mirror over against the second front anti-mirror imaging minute surface are fixedly linked.
Improvement as DDR breast X-ray machine of the present invention: the upper limb of the first front anti-mirror and the leading edge of image plate flush in vertical direction; The upper limb of the second front anti-mirror and the upper limb of the first front anti-mirror flush in the horizontal direction.
Further improvement as DDR breast X-ray machine of the present invention: become the angle of 40～50 ° between the first front anti-mirror and image plate.
Further improvement as DDR breast X-ray machine of the present invention: be provided with the zoom shifting axle on the frame platform, the zoom shifting axle is parallel to the line of the upper limb of the upper limb of the second front anti-mirror and the first front anti-mirror; The second front anti-mirror slides with the zoom shifting axle and is connected.
The shooting principle of DDR breast X-ray machine of the present invention is as follows:
X-ray tube emission is suitable for the X ray of breast tissue, and tested breast tissue is projected to image plate, and image plate can show the radioscopic image of this breast tissue of hardwood, and at this moment, the breast tissue root is positioned at the leading edge of image plate.Simultaneously, the mirror phase images of a visible hardwood image plate in the first front anti-mirror, in the first front anti-mirror mirror, the breast tissue root of image is positioned at the upper limb of the first front anti-mirror; Meanwhile, also show the mirror phase images of hardwood first a front anti-mirror in the second front anti-mirror, in the second front anti-mirror mirror, the breast tissue root of image is positioned at the upper limb of the second front anti-mirror.Take the photograph like this the breast photo, as main detect according to one of the breast tissue root be positioned at all the time the leading edge of photo, guarantee that the breast tissue root all shows; Thereby be convenient to doctor's correct diagnosis.
The zoom principle of DDR breast X-ray machine of the present invention is as follows:
The second front anti-mirror and digital camera integral body are moved along the zoom shifting axle, thereby changed the camera lens of digital camera and the actual range of image plate, reach the purpose of change field of view size.We know from above-mentioned shooting principle: the breast tissue root is positioned at the leading edge of image all the time, therefore can not cause the disappearance of breast tissue root in image.When taking micromazia, by the size (making the second front anti-mirror near the first front anti-mirror) of change field of view, deletion just be positioned at breast two sides without the white space of breast tissue and the white space without the breast tissue that is positioned at the breast over top.When taking huge breast, the size (making the second front anti-mirror away from the first front anti-mirror) by the change field of view still can make whole breast be embodied in image.
Certainly, it is enough large that image plate is wanted, and namely whole huge breast can be placed on image plate.
Adopt DDR breast X-ray function of the present invention to improve the image definition of breast photo, take the conventional visual field (FOV) 240mmX180mm as example, the CCD pixel is 1,500 ten thousand o'clock, high spatial resolution can reach 6LP/mm (experimental data), during zoom rearward vision 160mmX120mm, take the photograph photo, spatial resolution can be brought up to 10LP/mm (image is less, and resolution is higher).This technical specification expensive plate (non-crystalline silicon/amorphous selenium) mammary gland DR---X-ray production apparatus that exceeded the price.
DDR breast X-ray machine of the present invention, simple in structure, with low cost, easy to operate, be suitable for large-scale production and use, national health care expense can descend.The image definition of gained breast photo is high, can guarantee the integrity of breast tissue root in image, is conducive to the doctor and makes correct judgement.
Description of drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the actual working state schematic diagram of existing indirect-type breast X-ray machine;
Fig. 2 is the shooting results schematic diagram of Fig. 1;
In Fig. 2, a is the shooting results of huge breast, and b is the shooting results of conventional breast, and c is the shooting results of micromazia;
Fig. 3 is the structural representation of DDR breast X-ray machine of the present invention;
Fig. 4 is the actual working state schematic diagram of Fig. 3;
Fig. 5 is the shooting results schematic diagram of Fig. 4.
The specific embodiment
Fig. 3 has provided a kind of DDR breast X-ray machine, comprises corresponding mammary gland compressor 3 and the image plate 4 that arranges of X-ray tube 1 and up and down of launching X ray 2, and image plate 4 is fixed on frame platform 6; DDR breast X-ray machine also comprises the reflection unit that is comprised of the parallel double illuminator; The reflection unit that this parallel double illuminator forms is by being parallel to each other and the front anti-mirror 7 of imaging minute surface facing each other first and the second front anti-mirror 8 form.The upper limb 81 of the second front anti-mirror 8 and the upper limb 71 of the first front anti-mirror 7 flush in the horizontal direction.The first front anti-mirror 7 and the second front anti-mirror 8 are the front anti-mirror of high reflecting rate.
Be 45 ° at the angle that arranges below image plate 4 between the first front anti-mirror 7 of front anti-mirror 7, the first and image plate 4, the leading edge 41 of the upper limb 71 of the first front anti-mirror 7 and image plate 4 flushes in vertical direction.During actual photographed, breast 100 to be measured is that the leading edge 41 from image plate 4 enters image plate 4, and namely the breast tissue root is close to the leading edge 41 of image plate 4.This first front anti-mirror 7 is fixedly linked with frame platform 6.Be provided with zoom shifting axle 9 on frame platform 6, zoom shifting axle 9 is parallel to the line of the upper limb 71 of the upper limb 81 of the second front anti-mirror 8 and the first front anti-mirror 7.Being fixedly installed the second front anti-mirror 8 on support 61, slides along zoom shifting axle 9 in the top of support 61, and the bottom of support 61 and pedestal 62 are fixedly linked, and digital camera 5 also is fixedly linked with pedestal 62; Therefore, digital camera 5 and the second front anti-mirror 8 formed one can together with the integral body that moves along zoom shifting axle 9, thereby realized that the second front anti-mirror 8 is connected with the slip of frame platform 6.Therefore in whole moving process, the first front anti-mirror 7 remains with the second front anti-mirror 8 and is parallel to each other, the imaging minute surface in twos the upper limb 71 of the upper limb 81 of relative and the second front anti-mirror 8 and the first front anti-mirror 7 flush in the horizontal direction.
The size that is arranged on the first front anti-mirror 7 on frame platform 6 must guarantee: whole image plate 4 can be presented in the first front anti-mirror 7.In like manner, the size of the second front anti-mirror 8 must guarantee: no matter take huge breast or micromazia, whole image plate 4 can be presented in the second front anti-mirror 8.
Before DDR breast X-ray machine of the present invention dispatches from the factory, adjust in advance the camera lens of digital camera 5 and the positional distance between the second front anti-mirror 8, thereby guarantee the actual size for object on image plate 4 of digital camera 5 shooting gained.Later on just keep relatively-stationary state between digital camera 5 and the second front anti-mirror 8, namely digital camera 5 and the second front anti-mirror 8 can only move together, the change that digital camera 5 and the second front anti-mirror 8 each other can occurrence positions.
DDR breast X-ray machine actual working state of the present invention as shown in Figure 4, the specific works process is as follows:
1, make tested breast 100 enter image plate 4 from the leading edge 41 of image plate 4, namely the breast tissue root is close to the leading edge 41 of image plate 4; Regulate mammary gland compressor 3, make tested breast 100 be crushed as much as possible, ironed.
2, open X-ray tube 1, the X ray 2 that X-ray tube 1 sends makes the imaging on image plate 4 of tested breast 100; Be the radioscopic image that image plate 4 shows the tested breast 100 of hardwood, at this moment, the breast tissue root is positioned at the leading edge 41 of image plate 4.Simultaneously, the mirror phase images of a visible hardwood image plate 4 in the first front anti-mirror 7, in the first front anti-mirror 7 mirrors, the breast tissue root of image is positioned at the upper limb 71 of the first front anti-mirror 7; Meanwhile, also show the mirror phase images of a front anti-mirror 7 of hardwood first in the second front anti-mirror 8, in the second front anti-mirror 8 mirrors, the breast tissue root of image is positioned at the upper limb 81 of the second front anti-mirror.Take the photograph like this breast photo (as shown in Figure 5), as main detect according to one of breast root organize the leading edge that is positioned at all the time photo, guarantee all demonstrations of breast root tissue; Thereby be convenient to doctor's correct diagnosis.And tested breast 100 occupies most of position of image, thereby guarantees the definition of image.
Generally, the distance between the second front anti-mirror 8 and the first front anti-mirror 7 is to determine for the tested breast 100 of conventional size.When taking huge breast with the DDR breast X-ray machine of this conventional spacing distance, can cause huge breast not appear at fully in image, at this moment, need to increase the distance between the second front anti-mirror 8 and the first front anti-mirror 7, namely in Fig. 4, the second front anti-mirror 8 is moved to the left together with digital camera 5, when whole tested breast 100 as huge breast all can be seen (when tested breast 100 occupies most of area of the second front anti-mirror 8), stop mobile the second front anti-mirror 8 together with digital camera 5 in the camera lens of digital camera 5; Take the photograph like this huge newborn photo also as shown in Figure 5.
When taking micromazia with the DDR breast X-ray machine of this conventional spacing distance, tested breast 100 only occupies very little a part of position (shown in Fig. 2 c) of image.At this moment, need to reduce the distance between the second front anti-mirror 8 and the first front anti-mirror 7, namely in Fig. 4, the second front anti-mirror 8 is moved right together with digital camera 5, when whole tested breast 100 as micromazia occupies most of camera lens of digital camera 5 (when tested breast 100 occupies most of area of the second front anti-mirror 8), stop mobile the second front anti-mirror 8 together with digital camera 5; Take the photograph like this the micromazia photo also as shown in Figure 5.
In sum, when adopting DDR breast X-ray machine of the present invention no matter to take the breast of conventional size, huge breast or micromazia, organize as the main breast root that detects one of foundation the leading edge that is positioned at all the time photo, guarantee that the breast root tissue all shows; Thereby be convenient to doctor's correct diagnosis.And tested breast 100 occupies most of position of image all the time, thereby guarantees the definition of image.
At last, it is also to be noted that, what more than enumerate is only a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (4)
1. indirect-type breast X-ray machine, the X-ray tube (1) that comprises emission X ray (2), corresponding mammary gland compressor (3) and the image plate (4) that arranges in digital camera (5) and up and down, it is characterized in that: described image plate (4) is fixedly linked with frame platform (6), below at image plate (4) arranges the first front anti-mirror (7) that is fixedly linked with frame platform (6), the the second front anti-mirror (8) that slides and be connected with frame platform (6) also is set on frame platform (6), the described second front anti-mirror (8) is parallel to the first front anti-mirror (7), and the first front anti-mirror (7) is relative in twos with the imaging minute surface of the second front anti-mirror (8), digital camera (5) over against the second front anti-mirror (8) imaging minute surface is fixedly linked with the second front anti-mirror (8).
2. indirect-type breast X-ray machine according to claim 1 is characterized in that: the leading edge (41) of the upper limb (71) of the described first front anti-mirror (7) and image plate (4) flushes in vertical direction; The upper limb (71) of the upper limb (81) of the second front anti-mirror (8) and the first front anti-mirror (7) flushes in the horizontal direction.
3. indirect-type breast X-ray machine according to claim 2 is characterized in that: become the angle of 40～50 ° between the described first front anti-mirror (7) and image plate (4).
4. indirect-type breast X-ray machine according to claim 3, it is characterized in that: be provided with zoom shifting axle (9) on frame platform (6), the line of the upper limb (71) of the upper limb (81) that described zoom shifting axle (9) is parallel to the second front anti-mirror (8) and the first front anti-mirror (7); The described second front anti-mirror (8) slides with zoom shifting axle (9) and is connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010111723 CN101773396B (en) | 2010-02-12 | 2010-02-12 | DDR (digital data receiver) breast X-ray machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010111723 CN101773396B (en) | 2010-02-12 | 2010-02-12 | DDR (digital data receiver) breast X-ray machine |
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| CN101773396A CN101773396A (en) | 2010-07-14 |
| CN101773396B true CN101773396B (en) | 2013-06-05 |
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| CN 201010111723 Expired - Fee Related CN101773396B (en) | 2010-02-12 | 2010-02-12 | DDR (digital data receiver) breast X-ray machine |
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| CN102217946B (en) * | 2011-05-28 | 2013-03-13 | 赵福元 | Whole-body digital X-ray machine adopting linkage control zooming technique of light splitting instrument |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635020Y (en) * | 2003-07-11 | 2004-08-25 | 貊大卫 | X ray numerical imaging mastoscanning device |
| CN1827044A (en) * | 2005-03-04 | 2006-09-06 | 广东威尔医学科技股份有限公司 | Breast imaging system |
| WO2007113570A1 (en) * | 2006-04-05 | 2007-10-11 | The Science And Technology Facilities Council | Raman analysis of tissue |
| JP2009240467A (en) * | 2008-03-31 | 2009-10-22 | Fujifilm Corp | Image pickup device for breasts |
| CN201642055U (en) * | 2010-02-12 | 2010-11-24 | 杭州吴越电子有限公司 | Direct digital radiography (DDR) machine for breast |
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2010
- 2010-02-12 CN CN 201010111723 patent/CN101773396B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635020Y (en) * | 2003-07-11 | 2004-08-25 | 貊大卫 | X ray numerical imaging mastoscanning device |
| CN1827044A (en) * | 2005-03-04 | 2006-09-06 | 广东威尔医学科技股份有限公司 | Breast imaging system |
| WO2007113570A1 (en) * | 2006-04-05 | 2007-10-11 | The Science And Technology Facilities Council | Raman analysis of tissue |
| JP2009240467A (en) * | 2008-03-31 | 2009-10-22 | Fujifilm Corp | Image pickup device for breasts |
| CN201642055U (en) * | 2010-02-12 | 2010-11-24 | 杭州吴越电子有限公司 | Direct digital radiography (DDR) machine for breast |
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