CN103800022A - Lower limb full-length load-bearing position multi-time exposure X-ray photography and image measurement method thereof - Google Patents
Lower limb full-length load-bearing position multi-time exposure X-ray photography and image measurement method thereof Download PDFInfo
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- CN103800022A CN103800022A CN201410034007.5A CN201410034007A CN103800022A CN 103800022 A CN103800022 A CN 103800022A CN 201410034007 A CN201410034007 A CN 201410034007A CN 103800022 A CN103800022 A CN 103800022A
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- 210000003141 lower extremity Anatomy 0.000 title claims abstract description 36
- 238000000691 measurement method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000003321 amplification Effects 0.000 claims abstract description 11
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 11
- 238000002372 labelling Methods 0.000 claims description 27
- 230000004075 alteration Effects 0.000 claims description 12
- 210000002303 tibia Anatomy 0.000 claims description 11
- 210000000689 upper leg Anatomy 0.000 claims description 11
- 210000003414 extremity Anatomy 0.000 claims description 9
- 208000003643 Callosities Diseases 0.000 claims description 6
- 206010020649 Hyperkeratosis Diseases 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 6
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 claims description 5
- 210000000629 knee joint Anatomy 0.000 claims description 4
- 210000003484 anatomy Anatomy 0.000 claims description 3
- 210000000544 articulatio talocruralis Anatomy 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 210000000527 greater trochanter Anatomy 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002674 ointment Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000399 orthopedic effect Effects 0.000 description 2
- 238000002601 radiography Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007687 exposure technique Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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Abstract
The invention relates to X-ray photography through which multi-time exposure on the same image medium is achieved according to the X-ray central line vertical photography principle, and an image measurement method of the X-ray photography, in particular to lower limb full-length load-bearing position multi-time exposure X-ray photography and the image measurement method of the lower limb full-length load-bearing position multi-time exposure X-ray photography. By means of the lower limb full-length load-bearing position multi-time exposure X-ray photography and the measurement method of the lower limb full-length load-bearing position multi-time exposure X-ray photography, the multi-time exposure on the same image medium is achieved according to the self-load-bearing position X-ray central line vertical photography principle, and the problems that by means of the large-range photography method, amplification and deformation distortion happen to the edge of an image, exposure parameters are not consistent, the image density difference is large, and length real measurement can hardly be achieved are solved; the exposure photography process of the image measurement method is achieved through three steps, and images obtained through exposure photography are measured through two measurement methods. The X-ray photography and the image measurement method have the advantages that the negative influences of oblique rays in traditional lower limb full-length X-ray photography are avoided through a MARK marking multi-time central line exposure photography method, and the problems that distortion happens to the edge of the image and splicing errors are large are solved.
Description
Technical field
The present invention relates to a kind of x-ray centrage vertical photography principle of utilizing and realize same multiple exposure photography and the measuring method on imaged medium, be specially lower limb total length Weight carrying position multiple exposure X-ray photographic and measuring method thereof.
Background technology
Along with the fast development of orthopedic subject and orthopaedic trauma, picked-up Weight carrying position x-ray full-view image becomes prefered method.The lower limb line of force settling the standard is to evaluate and predict the important evidence of lower limb orthomorphia curative effect.Conventional radiography technology is had higher requirement.
Arise at the historic moment through the tradition splicing camera work of 3 exposures with the screen sheet of 3 35 × 43 ㎝, but because the distortion of image edge causes stitching error large, cannot provide accurate beasurement base for clinical.Avoid the metamorphopsic distortion of lower limb image to become the main difficult technical of lower limb total length X-ray photographic research.The research that solves this contradiction emerges in an endless stream with the large stretch of camera work of what is called, and its special-purpose photography device and screen chip size reach 35 × 63 ㎝ to 35 × 115 ㎝; It only has breakthrough on bag is received scope and photography length, still has the negative effect of the intrafascicular oblique ray of x-ray, inreal image edge distortion and the stitching error of solving.Its camera work has obvious breakthrough entirely on shot areas imaging is the size of image forming medium (film), and solve misregistration and the stitching error in tradition splicing camera work with this, ignore the main cause plant path effect of the large irradiation field of single exposure exactly that causes deformation of image.35.5 × 61.0 ㎝ over-long specification X ray films of developing for 2002 and specially correspondingly agree without prior consultation, intensifying screen, worry line device, be applied to the Polaroid photography of full spinal column, solve misregistration problem in traditional simple concatenation technology, obtain clinically approval, but the image edge problem of dtmf distortion DTMF of all not touching upon.Therefore, we have developed a kind of MARK labelling multiple exposure method and have solved problem described above from Weight carrying position lower limb panoramic radiography method, to realize the true measurement of Leg length and the line of force.
Summary of the invention
The object of the present invention is to provide a kind of under Weight carrying position position, take x-ray centrage vertical photography principle to realize lower limb total length Weight carrying position multiple exposure X-ray photographic and the image measuring method thereof of same the multiple exposure on imaged medium, solve the image edge amplification and the metamorphopsic distortion that exist in large stretch of photographic process, exposure parameter is inconsistent, image density difference large, be difficult to realize the true problem of measuring of length.
To achieve these goals, the present invention specifically adopts following technical scheme:
Lower limb total length Weight carrying position multiple exposure X-ray photographic, its photographic process concrete steps are as follows:
1. X-ray photographic equipment and material comprise: common 500mA X-ray machine or DR system or CR system; The screen colloid system of 3 14 × 17,3 14 × 17IP plates or 14 × 17FPD; The vertical position of x-ray photography support, the special callosity in vertical position, self-control MARK and plumbous matter label, copper aluminum matter screen plate, sheet lead preventer, adhesive tape fixture.
2. position design: patient becomes anteroposterior position to stand on the front callosity of photography support, and tight note magazine or IP plate or FPD, keep anatomy posture; Take femoral head as the first body surface anchor point, distal part of femur and knee joint are the second body surface anchor point, and tibia lower end and ankle joint are the 3rd body surface anchor point.
3. MARK and plumbous matter labelling affixed points: be close to femoral greater trochanter side skin and Lateral tibial plateau and paste MARK, the one-sided limbs dead ahead of femur and middle tibia is placed with font labelling, with adhesive tape, font labelling and MARK is pasted on to those who are investigated's body side.
4. remove examinee's medicated clothing, metallic foreign body, the ointment of note volt; Focus-film distance examiner 200cm, its limbs are close to magazine or FPD, and sheet lead hides non-irradiated site, agrees without prior consultation or 35cm × 43cm FPD carries out multiple exposure with 2 to 3 35cm × 43cm, and in photographic process, a Mobile X-ray bulb and FPD complete photography.
Further, described 14 × 17IP plate is CR imaging system.
Further, 14 described × 17FPD is DR flat panel detector.
Further, the thickness of described copper aluminum matter screen plate is 1mm.
Further, the one-sided limbs dead ahead of described femur and middle tibia is placed with font labelling and can uses the wherein one in the capital and small letter of Arabic numerals, English alphabet.
Further, the photographic parameter of described FPD multiple exposure: focus-film distance 200cm, little focus 1mm, irradiation field 10cm × 20cm, photography conditions 50～60KV, 8～20mAs, the aluminum matter screen plate that thickness is 1mm.
The image measuring method of lower limb total length Weight carrying position multiple exposure X-ray photographic, specific as follows described in:
The image measuring method of described lower limb total length Weight carrying position multiple exposure X-ray photographic comprises amplification MARK labelling measurement method and aberration rate MARK labelling measurement method.
Described amplification MARK labelling measurement method: the image of aobvious fixing bath processing is cut out and is spliced into lower limb total length image by gauge point through darkroom, then measures each MARK image diameter (D) and MARK true diameter (R).
Described MARK image diameter (D) is amplification (M) divided by MARK true diameter (R), computing formula: M=D/R × 100%.
Described aberration rate MARK labelling measurement method: aberration rate refers to metamorphopsic distortion and the magnification distortion degree of x-ray image, measures MARK image two mutual perpendicular diameter R in length and breadth
1, R
2, its difference (R
1-R
2) obtain its aberration rate (B), computing formula: B=(R divided by MARK true diameter (R)
1-R
2)/R × 100%.
Compared with prior art, beneficial effect of the present invention is.
1) adopt the method for imaging of MARK labelling gradation centrage exposure to avoid the negative effect of oblique ray in traditional lower limb total length X-ray photographic, solve its image edge distortion and the large problem of stitching error, realize the true x-ray measurement of lower limb total length.
2) take the X-ray photographic method from Weight carrying position, both met orthopedic line of force measurement requirement, widened again the limit of X-ray photographic distance, realized the teleradiography that is greater than 200 ㎝ focus-film distances, further reduced image zoom and metamorphopsic distortion.
3) multiple exposure, repeated exposure gauge point splicing, font labelling is pasted in subject, carry out gradation repeat photography in conjunction with centrage exposure technique, obtain the font image without metamorphopsic distortion, during using this as splicing, splice foundation directly perceived, realize truly splicing, reduced the error of traditional splicing.
The specific embodiment
Below in conjunction with embodiment, the present invention is further set forth, be not construed as limiting the invention.
Example 1
Lower limb total length Weight carrying position multiple exposure X-ray photographic, the concrete steps of its photographic process are as follows:
1. X-ray photographic equipment and material comprise: common 500mA X-ray machine or DR system or CR system; The screen colloid system of 3 14 × 17 or 3 14 × 17IP plates or 14 × 17FPD; The vertical position of x-ray photography support, the special callosity in vertical position, self-control MARK and plumbous matter label, copper aluminum matter screen plate, sheet lead preventer, adhesive tape fixture.
2. position design: patient becomes anteroposterior position to stand on the front callosity of photography support, and tight note magazine or FPD, keep anatomy posture; Take femoral head as the first body surface anchor point, distal part of femur and knee joint are the second body surface anchor point, and tibia lower end and ankle joint are the 3rd body surface anchor point.
3. MARK and plumbous matter labelling affixed points: be close to femoral greater trochanter side skin and Lateral tibial plateau and paste MARK, the one-sided limbs dead ahead of femur and middle tibia is placed with font labelling, with adhesive tape, font labelling and MARK is pasted on to those who are investigated's body side.
4. remove examinee's medicated clothing, metallic foreign body, the ointment of note volt; Focus-film distance examiner 200cm, its limbs are close to magazine or FPD, and sheet lead hides non-irradiated site, agrees without prior consultation or 35cm × 43cm FPD carries out multiple exposure with 2 to 3 35cm × 43cm, and in photographic process, a Mobile X-ray bulb and FPD complete photography.
Further, the one-sided limbs dead ahead of described femur and middle tibia is placed with font labelling and can uses the wherein one in the capital and small letter of Arabic numerals, English alphabet.
FPD carries out multiple exposure: utilize DR flat panel detector that the combination of screen sheet and CR imaging system are carried out respectively to 7 exposures, when the 1st photography, exposure centrage is aimed at the first body surface anchor point femoral head concave point vertical incidence, when the 2nd photography, exposure centrage is aimed at the first body surface anchor point femur mid point gauge point vertical incidence, the photography of the 1st film that exposed for the 1st, 2 times; The 3rd time exposure centrage is aimed at femur mid point gauge point vertical incidence, the 4th is aimed at the second body surface anchor point knee joint vertical incidence, the 5th exposure centrage is aimed at the 3rd body surface anchor point tibia mid point gauge point vertical incidence, the photography of the 2nd film that exposed for the 3rd, 4,5 times; The 6th time exposure centrage is aimed at the 3rd body surface anchor point tibia mid point gauge point vertical incidence, and the 7th time exposure centrage is aimed at 1cm-2cm place, medial and lateral malleoli line top vertical incidence, completes the photography of the 3rd film.
The image measuring method of lower limb total length Weight carrying position multiple exposure X-ray photographic, specific as follows described in:
The image measuring method of described lower limb total length x-ray multiple exposure comprises amplification MARK labelling measurement method and aberration rate MARK labelling measurement method.
Described amplification MARK labelling measurement method: the image of aobvious fixing bath processing is cut out and is spliced into lower limb total length image by gauge point through darkroom, then measures each MARK image diameter (D) and MARK true diameter (R).
Described MARK image diameter (D) is amplification (M) divided by MARK true diameter (R), computing formula: M=D/R × 100%.
Described aberration rate MARK labelling measurement method: aberration rate refers to metamorphopsic distortion and the magnification distortion degree of x-ray image, measures MARK image two mutual perpendicular diameter R in length and breadth
1, R
2, its difference (R
1-R
2) obtain its aberration rate (B), computing formula: B=(R divided by MARK true diameter (R)
1-R
2)/R × 100%.
Enumerating of the explanation of above embodiment and preferred embodiment, is not the restriction to protection domain in the present invention, and that in the protection domain of claim of the present invention, makes does not have a creationary simple change, within being included in protection scope of the present invention.
Claims (10)
1. lower limb total length Weight carrying position multiple exposure X-ray photographic, is characterized in that, the concrete steps of described exposure photographic process are as follows:
1. X-ray photographic equipment and material comprise: common 500mA X-ray machine or DR system or CR system; The screen colloid system of 3 14 × 17 or 3 14 × 17IP plates or 14 × 17FPD; The vertical position of x-ray photography support, the special callosity in vertical position, self-control MARK and plumbous matter label, copper aluminum matter screen plate, sheet lead preventer, adhesive tape fixture;
2. position design: patient becomes anteroposterior position to stand on the front callosity of photography support, and tight note magazine or FPD, keep anatomy posture; Take femoral head as the first body surface anchor point, distal part of femur and knee joint are the second body surface anchor point, and tibia lower end and ankle joint are the 3rd body surface anchor point;
3. MARK and plumbous matter labelling affixed points: be close to femoral greater trochanter side skin and Lateral tibial plateau and paste MARK, the one-sided limbs dead ahead of femur and middle tibia is placed with font labelling, with adhesive tape, font labelling and MARK is pasted on to those who are investigated's body side;
4. remove examinee's medicated clothing, metallic foreign body, the ointment of note volt; Focus-film distance examiner 200cm, its limbs are close to magazine or FPD, and sheet lead hides non-irradiated site, agrees without prior consultation or 35cm × 43cm FPD carries out multiple exposure with 2 to 3 35cm × 43cm, and in photographic process, a Mobile X-ray bulb and FPD complete photography.
2. lower limb total length Weight carrying position multiple exposure X-ray photographic according to claim 1, is characterized in that: described 14 × 17IP plate is CR imaging system.
3. lower limb total length Weight carrying position multiple exposure X-ray photographic according to claim 1, is characterized in that: 14 described × 17FPD is DR flat panel detector.
4. lower limb total length Weight carrying position multiple exposure X-ray photographic according to claim 1, is characterized in that: described copper aluminum matter screen plate thickness is 1mm.
5. lower limb total length Weight carrying position multiple exposure X-ray photographic according to claim 1, is characterized in that: the one-sided limbs dead ahead of described femur and middle tibia is placed with font labelling can use wherein a kind of in the capital and small letter of Arabic numerals, English alphabet.
6. lower limb total length Weight carrying position multiple exposure X-ray photographic according to claim 1, it is characterized in that: the photographic parameter of described FPD multiple exposure: the photographic parameter of described FPD multiple exposure: focus-film distance 200cm, little focus 1mm, irradiation field 10cm × 20cm, photography conditions 50～60KV, 8～20mAs, the aluminum matter screen plate that thickness is 1mm.
7. the image measuring method of lower limb total length Weight carrying position multiple exposure X-ray photographic, is characterized in that, specific as follows described in:
The image measuring method of described lower limb total length x-ray multiple exposure comprises amplification MARK labelling measurement method and aberration rate MARK labelling measurement method.
8. the image measuring method of lower limb total length Weight carrying position multiple exposure X-ray photographic according to claim 7, it is characterized in that: described amplification MARK labelling measurement method: the image of aobvious fixing bath processing is cut out and is spliced into lower limb total length image by gauge point through darkroom, then measure each MARK image diameter (D) and MARK true diameter (R).
9. the image measuring method of lower limb total length Weight carrying position multiple exposure X-ray photographic according to claim 8, is characterized in that: described MARK image diameter (D) is amplification (M) divided by MARK true diameter (R), computing formula: M=D/R × 100%.
10. the image measuring method of lower limb total length Weight carrying position multiple exposure X-ray photographic according to claim 8, it is characterized in that: described aberration rate MARK labelling measurement method: aberration rate refers to metamorphopsic distortion and the magnification distortion degree of x-ray image, measure MARK image two mutual perpendicular diameter R in length and breadth
1, R
2, its difference (R
1-R
2) obtain its aberration rate (B), computing formula: B=(R divided by MARK true diameter (R)
1-R
2)/R × 100%.
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|---|---|---|---|
| CN201410034007.5A CN103800022A (en) | 2014-01-24 | 2014-01-24 | Lower limb full-length load-bearing position multi-time exposure X-ray photography and image measurement method thereof |
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| CN201410034007.5A CN103800022A (en) | 2014-01-24 | 2014-01-24 | Lower limb full-length load-bearing position multi-time exposure X-ray photography and image measurement method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI614500B (en) * | 2016-11-21 | 2018-02-11 | 國立清華大學 | Image detection and splicing method for cell detection wafer and image detection system |
| CN110946597A (en) * | 2018-09-27 | 2020-04-03 | 上海西门子医疗器械有限公司 | X-ray photographing apparatus and method |
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| CN2502641Y (en) * | 2001-10-24 | 2002-07-31 | 南京大学医学院附属鼓楼医院 | Weight carrying position whole lower limb image-forming radiography device |
| CN101305922A (en) * | 2008-05-29 | 2008-11-19 | 上海交通大学医学院附属第九人民医院 | Calibration and splice method of over-long specification X ray irradiation image |
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2014
- 2014-01-24 CN CN201410034007.5A patent/CN103800022A/en active Pending
Patent Citations (3)
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| CN2502641Y (en) * | 2001-10-24 | 2002-07-31 | 南京大学医学院附属鼓楼医院 | Weight carrying position whole lower limb image-forming radiography device |
| CN101305922A (en) * | 2008-05-29 | 2008-11-19 | 上海交通大学医学院附属第九人民医院 | Calibration and splice method of over-long specification X ray irradiation image |
| CN101783880A (en) * | 2010-03-01 | 2010-07-21 | 中国人民解放军南京军区福州总医院 | Super-long X-ray digital imaging device |
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| Title |
|---|
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| 陈晓飞等: "负重位MARK标记分次曝光法下肢全长X线摄影技术", 《中华医学会影像技术分会第18次全国学术大会论文集》, 30 September 2010 (2010-09-30) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI614500B (en) * | 2016-11-21 | 2018-02-11 | 國立清華大學 | Image detection and splicing method for cell detection wafer and image detection system |
| CN110946597A (en) * | 2018-09-27 | 2020-04-03 | 上海西门子医疗器械有限公司 | X-ray photographing apparatus and method |
| CN110946597B (en) * | 2018-09-27 | 2023-09-26 | 上海西门子医疗器械有限公司 | X-ray photographing apparatus and method |
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