JP5019930B2 - 放射線断層画像取得装置 - Google Patents
放射線断層画像取得装置 Download PDFInfo
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- JP5019930B2 JP5019930B2 JP2007099382A JP2007099382A JP5019930B2 JP 5019930 B2 JP5019930 B2 JP 5019930B2 JP 2007099382 A JP2007099382 A JP 2007099382A JP 2007099382 A JP2007099382 A JP 2007099382A JP 5019930 B2 JP5019930 B2 JP 5019930B2
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- 230000005855 radiation Effects 0.000 title claims description 223
- 238000001514 detection method Methods 0.000 claims description 19
- 230000001678 irradiating effect Effects 0.000 claims description 7
- 238000003384 imaging method Methods 0.000 description 64
- 210000000481 breast Anatomy 0.000 description 57
- 230000006835 compression Effects 0.000 description 21
- 238000007906 compression Methods 0.000 description 21
- 239000007787 solid Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 12
- 238000009607 mammography Methods 0.000 description 6
- 238000002601 radiography Methods 0.000 description 4
- 210000000779 thoracic wall Anatomy 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 201000010759 hypertrophy of breast Diseases 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 210000005075 mammary gland Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002976 pectoralis muscle Anatomy 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
-
- 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
-
- 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
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/542—Control of apparatus or devices for radiation diagnosis involving control of exposure
-
- 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
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/542—Control of apparatus or devices for radiation diagnosis involving control of exposure
- A61B6/544—Control of apparatus or devices for radiation diagnosis involving control of exposure dependent on patient size
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
- G01B15/02—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
- G01B15/025—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness by measuring absorption
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- High Energy & Nuclear Physics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Physics & Mathematics (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Electromagnetism (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
前記放射線画像検出器に対向して設けられ、移動しながら複数の照射方向から前記放射線画像検出器上の被写体に対して放射線を照射する放射線照射部と、
前記被写体の厚さを検出する厚さ検出手段と、
各前記各照射方向と前記厚さに応じて、前記放射線画像検出器に入射する放射線量が一定になるように前記各照射方向から照射する放射線量を制御する放射線照射量制御手段とを備えたことを特徴とするものである。
前記放射線照射量制御手段が、前記放射線照射部が基準方向において照射した放射線量と、前記基準位置において前記放射線照射部が放射線を照射したときに前記線量検出手段により検出された放射線量と、前記基準方向と各照射方向とのなす角とに基づいて、前記各照射方向から照射する放射線量を制御するものであってもよい。
ここで、a(θ)=a/cosθ
α : 距離減衰係数
さらに、放射線D1が圧迫板210を透過して***Mの表面に到達する放射線D2は下式(2)のようになる。
2 ***画像撮影装置
3 断層画像生成装置
4 ネットワーク
22 放射線照射部
23 放射線収納部
24 撮影台
25 アーム
26 基台
27 放射線源制御部
28 操作部
29 アーム移動手段
31 受信手段
32 放射線画像記憶手段
33 撮影条件記憶手段
34 再構成手段
35 表示部
210 圧迫板
241 放射線画像検出器
251 取付部
252 圧迫板移動手段
210 圧迫板
211 差込部
221 放射線源移動手段
261 送信部
271 厚さ検出手段
272 放射線照射量制御手段
Claims (1)
- 被写体の放射線画像を検出する放射線画像検出器と、
前記放射線画像検出器に対向して設けられ、移動しながら複数の照射方向から前記放射線画像検出器上の被写体に対して放射線を照射する放射線照射部と、
前記放射線照射部が照射した放射線が前記被写体を透過した放射線量を検出する線量検出手段と、
前記被写体の厚さを検出する厚さ検出手段と、
前記各照射方向と前記厚さに応じて、前記放射線画像検出器に入射する放射線量が一定になるように前記各照射方向から照射する放射線量を制御する放射線照射量制御手段とを備え、
前記放射線照射量制御手段が、前記放射線照射部が基準方向において照射した放射線量と、前記基準方向において前記放射線照射部が放射線を照射したときに前記線量検出手段により検出された放射線量と、前記基準方向と前記各照射方向とのなす角とに基づいて、前記各照射方向から照射する放射線量を制御するものであることを特徴とする放射線断層画像取得装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007099382A JP5019930B2 (ja) | 2007-04-05 | 2007-04-05 | 放射線断層画像取得装置 |
US12/098,767 US20080247509A1 (en) | 2007-04-05 | 2008-04-07 | Radiation image obtaining system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007099382A JP5019930B2 (ja) | 2007-04-05 | 2007-04-05 | 放射線断層画像取得装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012132579A Division JP5232320B2 (ja) | 2012-06-12 | 2012-06-12 | 放射線断層画像取得装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008253555A JP2008253555A (ja) | 2008-10-23 |
JP2008253555A5 JP2008253555A5 (ja) | 2010-04-08 |
JP5019930B2 true JP5019930B2 (ja) | 2012-09-05 |
Family
ID=39826887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007099382A Active JP5019930B2 (ja) | 2007-04-05 | 2007-04-05 | 放射線断層画像取得装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20080247509A1 (ja) |
JP (1) | JP5019930B2 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5568232B2 (ja) * | 2008-11-17 | 2014-08-06 | 富士フイルム株式会社 | 断層画像撮影装置 |
JP2010233875A (ja) * | 2009-03-31 | 2010-10-21 | Fujifilm Corp | 放射線画像撮影装置、生検装置、放射線画像撮影方法及び生検方法 |
JP5355271B2 (ja) | 2009-07-24 | 2013-11-27 | 富士フイルム株式会社 | 放射線画像撮影装置 |
JP5572040B2 (ja) * | 2009-09-28 | 2014-08-13 | 富士フイルム株式会社 | 放射線撮影装置 |
JP5540865B2 (ja) * | 2010-04-23 | 2014-07-02 | 株式会社島津製作所 | 放射線撮影装置 |
FR2967887B1 (fr) * | 2010-11-26 | 2018-01-19 | General Electric Company | Mammographe compact, et procede de mammographie associe |
FR2969919B1 (fr) * | 2011-01-03 | 2013-01-11 | Gen Electric | Procede d'aide au positionnement d'un organe sur un support d'un systeme d'acquisition d'images medicales |
WO2012120886A1 (ja) * | 2011-03-10 | 2012-09-13 | 富士フイルム株式会社 | 3次元放射線撮影装置および方法 |
JP5743731B2 (ja) * | 2011-06-15 | 2015-07-01 | 富士フイルム株式会社 | 放射線画像撮影装置および方法 |
WO2013005871A1 (ko) * | 2011-07-01 | 2013-01-10 | 주식회사 휴먼레이 | 다중 센서를 갖는 맘모그래피용 디텍터 및 3차원 영상 획득이 가능한 맘모그래피 장치 |
WO2013047439A1 (ja) * | 2011-09-27 | 2013-04-04 | 株式会社 日立メディコ | X線ct装置及び画像補正方法 |
JP5587926B2 (ja) | 2012-02-10 | 2014-09-10 | 富士フイルム株式会社 | 放射線撮影システム及びその制御方法 |
KR102023511B1 (ko) * | 2012-09-07 | 2019-09-30 | 삼성전자주식회사 | 엑스선 영상 생성 방법 및 장치 |
JP5519753B2 (ja) | 2012-09-28 | 2014-06-11 | 富士フイルム株式会社 | 断層画像生成装置および方法 |
JP5528518B2 (ja) * | 2012-09-28 | 2014-06-25 | 富士フイルム株式会社 | 放射線画像生成装置および方法 |
US9226720B2 (en) | 2012-11-16 | 2016-01-05 | Shimadzu Corporation | Radiographic apparatus |
JP6141995B2 (ja) * | 2013-09-27 | 2017-06-07 | 富士フイルム株式会社 | マンモグラフィ装置、放射線画像撮影方法およびプログラム |
JP6050905B2 (ja) * | 2015-02-25 | 2016-12-21 | 株式会社モリタ製作所 | 医療用x線撮影装置及びx線撮影方法 |
US10278654B2 (en) | 2015-02-25 | 2019-05-07 | J. Morita Manufacturing Corporation | Medical X-ray photographing apparatus and X-ray photographing method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5680430A (en) * | 1996-04-23 | 1997-10-21 | Continental X-Ray Corporation | Method and apparatus for controlling and optimizing output of an x-ray source |
JP2005034436A (ja) * | 2003-07-16 | 2005-02-10 | Canon Inc | 放射線画像撮影装置 |
US7545907B2 (en) * | 2005-11-09 | 2009-06-09 | Dexela Limited | Methods and apparatus for obtaining low-dose imaging |
-
2007
- 2007-04-05 JP JP2007099382A patent/JP5019930B2/ja active Active
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2008
- 2008-04-07 US US12/098,767 patent/US20080247509A1/en not_active Abandoned
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Publication number | Publication date |
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US20080247509A1 (en) | 2008-10-09 |
JP2008253555A (ja) | 2008-10-23 |
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