JP4922586B2 - 放射線投射型断層撮影用の装置 - Google Patents
放射線投射型断層撮影用の装置 Download PDFInfo
- Publication number
- JP4922586B2 JP4922586B2 JP2005262046A JP2005262046A JP4922586B2 JP 4922586 B2 JP4922586 B2 JP 4922586B2 JP 2005262046 A JP2005262046 A JP 2005262046A JP 2005262046 A JP2005262046 A JP 2005262046A JP 4922586 B2 JP4922586 B2 JP 4922586B2
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- Prior art keywords
- focal spot
- carrying
- radiation source
- relative
- tube
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000005855 radiation Effects 0.000 title claims description 31
- 238000003325 tomography Methods 0.000 title claims description 22
- 230000033001 locomotion Effects 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 description 16
- 238000009607 mammography Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 8
- 210000000038 chest Anatomy 0.000 description 8
- 230000001133 acceleration Effects 0.000 description 4
- 238000012937 correction Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002591 computed tomography Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/58—Testing, adjusting or calibrating thereof
- A61B6/587—Alignment of source unit to detector unit
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/06—Diaphragms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/502—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of breast, i.e. mammography
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
2 支持手段
3 パッド
4 把手
5 X線管
6 検出器
7、8 極限位置
9 二分方向
10 アーム
11 焦点スポット
11a、11b 位置
12、13、14、15、16、17、18、19、20、21 露出位置
22 経路
23 目標中心
24 円
25 円の中心
26 円の半径
27、28 曲線
29 水平の部分
30 垂直な部分
31 軸受
32
33、36、37 歯車
34、38、39 回転軸線
35 軸受
40、41 偏心ピン
42、43 ハウジング
44 エピサイクロイドの軌跡
45 回転陽極
46 陰極
47 X線
47a、47b、47c X線の位置
48 軸線
49 端部
50 釣合い錘
51、52 歯車
53 歯付き円形トラック
54 中央軸線の方向
55 窓
56 外囲器
57 マルチリーフ形コリメータ
57a、57b、57c コリメータのリーフの位置
58 方向
59 シフトの方向
60a〜c、61a〜c X線の境界
62 物体の照射区域
Claims (9)
- 断層撮影を受ける物体を支持する支持手段(2)と、
焦点スポット(11)を持つ放射線源(47)を備える手段(5)と、
放射線を検出する検出手段(6)と、
断層撮影動作中に前記支持手段に対して所定の経路(22)に沿って前記焦点スポットを担持する手段(10)であって、当該担持する手段は、当該担持する手段の一端部(49)に対する前記焦点スポットの相対的シフトを促す手段と、
を含み、
前記相対的シフトを促す手段は、サイクロイド、エピサイクロイド又はハイポサイクロイドである相対的運動を生じさせる、
断層撮影装置。 - 前記経路(22)は円又は直線である、請求項1に記載の装置。
- 前記相対的シフトを促す手段は、前記担持する手段の端部に取り付けられ且つ偏心ピン(40,41)を備えた運動手段(33)を含み、前記運動手段の回転位置が前記担持する手段の位置に対して割り出され、前記ピンは前記放射線源を備える手段のハウジング(42,43)に係合していて、前記担持する手段の端部に対して運動するように前記放射線源を備える手段を駆動する、請求項2記載の装置。
- 前記ピンは、前記運動手段の周縁部に設けられた軸線を持つ円柱体である、請求項3記載の装置。
- 前記相対的シフトを促す手段は、前記担持する手段の端部に取り付けられた2つの運動歯車(36,37)を有し、その各々の運動歯車は偏心ピン(40,41)を備えており、前記2つの歯車の回転位置は前記担持する手段の位置で同じ様に割り出され、前記ピンは前記放射線源を備える手段の2つのハウジング(42,43)に係合しており、該2つのハウジングは前記放射線源を備える手段の放射線(47)の主方向に整列している、請求項3又は4記載の装置。
- 前記2つの運動歯車は同一の駆動歯車によって駆動される、請求項5記載の装置。
- 前記放射線源を備える手段の相対的運動に釣り合わせるために釣合い錘機構(50)を含んでいる請求項1乃至6の何れか1項に記載の装置。
- 前記釣合い錘機構は、アームの端部に取り付けられた釣合い歯車を有し、該釣合い歯車は、釣合い錘を駆動する偏心手段を備えており、運動歯車の回転位置及び前記釣合い歯車の回転位置が前記担持する手段の位置とは反対の位相で割り出される、請求項7記載の装置。
- 断層撮影動作中に前記放射線源を備える手段の外囲器(56)に対して前記管の平均照射方向を修正するために、コリメータのスリット(57)の位置が前記放射線源を備える手段の運動方向とは反対の方向に修正される、請求項1乃至8の何れか1項に記載の装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0452157A FR2875693B1 (fr) | 2004-09-24 | 2004-09-24 | Dispositif de tomographie par rayons x |
FR0452157 | 2004-09-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006087919A JP2006087919A (ja) | 2006-04-06 |
JP4922586B2 true JP4922586B2 (ja) | 2012-04-25 |
Family
ID=34953390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005262046A Expired - Fee Related JP4922586B2 (ja) | 2004-09-24 | 2005-09-09 | 放射線投射型断層撮影用の装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7212606B2 (ja) |
EP (1) | EP1639944B1 (ja) |
JP (1) | JP4922586B2 (ja) |
FR (1) | FR2875693B1 (ja) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009089739A (ja) * | 2007-10-03 | 2009-04-30 | Toshiba Corp | 乳房撮影検査用x線診断装置 |
US8284899B2 (en) * | 2007-11-21 | 2012-10-09 | Varian Medical Systems, Inc. | X-ray tube having a focal spot proximate the tube end |
CN101983034B (zh) * | 2008-03-31 | 2013-02-13 | 皇家飞利浦电子股份有限公司 | 基于在用于锥束体积ct乳房x线照相术成像的连续管移动期间无焦斑运动的旋转步进-扫描图像采集的快速断层合成扫描器装置和基于ct的方法 |
FI123261B (fi) * | 2008-11-28 | 2013-01-15 | Planmed Oy | 3D mammografia |
CN102655811B (zh) * | 2009-12-18 | 2014-08-20 | 株式会社岛津制作所 | X射线摄像装置 |
JP2011177456A (ja) * | 2010-03-04 | 2011-09-15 | Fujifilm Corp | 放射線画像撮影方法及びその装置並びに放射線画像生成方法及びその装置 |
JP5436301B2 (ja) * | 2010-03-29 | 2014-03-05 | 富士フイルム株式会社 | 放射線撮影装置、及び放射線撮影システム |
EP2407109B1 (en) | 2010-07-14 | 2016-01-06 | XCounter AB | Computed tomography scanning system and method |
JP2013066784A (ja) * | 2013-01-22 | 2013-04-18 | Toshiba Corp | 乳房撮影検査用x線診断装置 |
CN104068885B (zh) * | 2013-03-28 | 2016-07-06 | 上海西门子医疗器械有限公司 | Ct机的扫描触发控制方法、装置及ct机 |
US9808211B2 (en) * | 2013-11-12 | 2017-11-07 | Carestream Health, Inc. | Head and neck imager |
US9898840B2 (en) | 2014-05-15 | 2018-02-20 | General Electric Company | Systems and methods for continuous motion breast tomosynthesis |
US9955932B2 (en) | 2014-10-22 | 2018-05-01 | General Electric Company | Apparatus and method for tomosynthesis image acquisition |
EP3238628A4 (en) * | 2014-12-26 | 2018-08-15 | Rayence Co., Ltd. | Lifting apparatus for pressure paddle and x-ray image photographing device including same |
US10278654B2 (en) * | 2015-02-25 | 2019-05-07 | J. Morita Manufacturing Corporation | Medical X-ray photographing apparatus and X-ray photographing method |
US9924909B2 (en) | 2015-08-04 | 2018-03-27 | General Electric Company | System and method for tomosynthesis image acquisition |
US10076292B2 (en) | 2015-10-16 | 2018-09-18 | General Electric Company | Systems and methods for x-ray tomography having retrograde focal positioning |
Family Cites Families (22)
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DE1118928B (de) * | 1960-03-12 | 1961-12-07 | Siemens Reiniger Werke Ag | Roentgen-Schichtaufnahmegeraet |
FR2088964A5 (ja) * | 1970-04-30 | 1972-01-07 | Radiologie Cie Gle | |
DE2123151C3 (de) * | 1971-05-11 | 1979-01-04 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Aufnahmeanordnung für die Mammographie |
BE786857A (nl) * | 1971-07-29 | 1973-01-29 | Philips Nv | Mechanische bewegingsinrichting voor een rontgenapparaat |
JPS5228889A (en) * | 1975-08-29 | 1977-03-04 | Hitachi Medical Corp | Tomographic image pickup device |
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FR2352531A1 (fr) | 1976-05-26 | 1977-12-23 | Radiologie Cie Gle | Appareil de tomographie homothetique, notamment applicable a la mammographie |
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FR2568122A1 (fr) | 1984-07-27 | 1986-01-31 | Thomson Cgr | Procede d'imagerie tomographique et dispositif pour la mise en oeuvre de ce procede |
JPS6199138A (ja) * | 1984-10-20 | 1986-05-17 | Fuji Photo Film Co Ltd | 放射線画像情報記録読取装置 |
JPH0824673B2 (ja) * | 1985-06-05 | 1996-03-13 | 富士写真フイルム株式会社 | 放射線画像情報記録装置 |
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JP3326922B2 (ja) * | 1993-10-21 | 2002-09-24 | 株式会社島津製作所 | X線診断装置 |
FI100296B (fi) * | 1995-12-14 | 1997-11-14 | Instrumentarium Corp | Röntgenkuvauslaitteen valotusautomatiikka |
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US7295691B2 (en) * | 2002-05-15 | 2007-11-13 | Ge Medical Systems Global Technology Company, Llc | Computer aided diagnosis of an image set |
US6940943B2 (en) * | 2002-10-07 | 2005-09-06 | General Electric Company | Continuous scan tomosynthesis system and method |
FI117542B (fi) * | 2002-12-04 | 2006-11-30 | Planmed Oy | Digitaalinen mammografiakuvantamismenetelmä ja -laite |
US7110490B2 (en) * | 2002-12-10 | 2006-09-19 | General Electric Company | Full field digital tomosynthesis method and apparatus |
-
2004
- 2004-09-24 FR FR0452157A patent/FR2875693B1/fr not_active Expired - Lifetime
-
2005
- 2005-07-13 US US11/180,266 patent/US7212606B2/en active Active
- 2005-09-09 JP JP2005262046A patent/JP4922586B2/ja not_active Expired - Fee Related
- 2005-09-21 EP EP05255858.2A patent/EP1639944B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
US7212606B2 (en) | 2007-05-01 |
EP1639944B1 (en) | 2014-11-12 |
FR2875693A1 (fr) | 2006-03-31 |
EP1639944A3 (en) | 2009-05-20 |
FR2875693B1 (fr) | 2006-12-08 |
EP1639944A2 (en) | 2006-03-29 |
JP2006087919A (ja) | 2006-04-06 |
US20060078084A1 (en) | 2006-04-13 |
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