JP5452837B2 - 医用イメージング装置のための露出を制御する方法及びシステム - Google Patents
医用イメージング装置のための露出を制御する方法及びシステム Download PDFInfo
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- JP5452837B2 JP5452837B2 JP2006125395A JP2006125395A JP5452837B2 JP 5452837 B2 JP5452837 B2 JP 5452837B2 JP 2006125395 A JP2006125395 A JP 2006125395A JP 2006125395 A JP2006125395 A JP 2006125395A JP 5452837 B2 JP5452837 B2 JP 5452837B2
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- 238000000034 method Methods 0.000 title claims description 25
- 238000002059 diagnostic imaging Methods 0.000 title description 5
- 238000003384 imaging method Methods 0.000 claims description 39
- 238000012545 processing Methods 0.000 claims description 16
- 239000000654 additive Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- 238000012935 Averaging Methods 0.000 claims description 2
- 238000002591 computed tomography Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
-
- 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
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/405—Source units specially adapted to modify characteristics of the beam during the data acquisition process
-
- 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
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
- A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
-
- 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
- A61B6/46—Arrangements for interfacing with the operator or the patient
- A61B6/461—Displaying means of special interest
- A61B6/463—Displaying means of special interest characterised by displaying multiple images or images and diagnostic data on one display
-
- 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
- A61B6/48—Diagnostic techniques
- A61B6/482—Diagnostic techniques involving multiple energy imaging
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
- H05G1/30—Controlling
-
- 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
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4405—Constructional features of apparatus for radiation diagnosis the apparatus being movable or portable, e.g. handheld or mounted on a trolley
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- High Energy & Nuclear Physics (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Pulmonology (AREA)
- Human Computer Interaction (AREA)
- Toxicology (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
12 ガントリ
14 X線源
16 X線
17 位置決めアーム
18 検出器アレイ
20 検出器素子
22 患者
24 回転中心
26 制御ユニット
39 移動式下部構造
42 表示装置
48 ガントリ開口
100 露出制御方法
Claims (10)
- X線イメージング・システム(10)を制御する方法(108)であって、
前記X線イメージング・システムのX線露出レベルを変更する露出パラメータを決定する段階と、
前記X線イメージング・システムのX線源の各位置における露出の数を決定する段階と、
決定された前記露出パラメータと、決定された前記露出の数に基づいて、前記X線イメージング・システムの複数のX線源(14)の露出レベルを変えて、前記X線源の各位置における複数の画像を作成する段階と、
該複数の画像を加法的処理で組み合わせて(112)、前記複数の画像の各々よりもダイナミックレンジが改善された単一のX線画像を形成する段階と、を有している方法。 - X線イメージング・システム(10)を制御する方法(108)であって、
X線露出レベルを変更する露出パラメータを決定する段階と、
前記X線イメージング・システムの複数の位置の各々における露出の数を決定する段階と、
複数の前記露出に対応する複数の画像を受ける段階であって、前記複数の露出の各々が、決定された前記露出パラメータと決定された前記露出の数に基づいた異なる露出レベルを持つ、前記受ける段階と、
該複数の画像を加法的処理で組み合わせて(112)、前記複数の画像の各々よりもダイナミックレンジが改善された単一のX線画像を形成する段階と、を有している方法。 - 露出レベルを変える前記段階は、X線量を変える段階を含んでいる、請求項1または2に記載の方法。
- 露出レベルを変える前記段階は、持続時間を変える段階を含んでいる、請求項1乃至3のいずれかに記載の方法。
- 露出レベルを変える前記段階は、ミリアンペア(mA)レベルを変える段階を含んでいる、請求項1乃至4のいずれかに記載の方法。
- 前記持続時間は電気的手段及び機械的手段の内の一方によって制御される、請求項4記載の方法。
- 前記加法的処理は加算平均処理を含んでいる、請求項1乃至6のいずれかに記載の方法。
- 更に、X線システム(10)の単一の動作位置でイメージ増強管を使用して複数の画像を取得する段階を含んでいる請求項1乃至7のいずれかに記載の方法。
- 更に、X線システム(10)の複数の動作位置の各々でイメージ増強管を使用して複数の画像を取得する段階を含んでいる請求項1乃至7のいずれかに記載の方法。
- X線画像を取得するためのX線イメージング装置と、
前記X線イメージング装置の各々の動作位置で取得される複数の画像の露出レベルを制御し(108)、前記複数の画像を規定する前記複数の動作位置の各々における露出の数を制御する(104)ための制御装置(33)と、
各々が異なる露出レベルを持つ複数の取得した画像を処理して、前記複数の取得した画像を加法的処理で組み合わせ(112)、前記複数の画像の各々よりもダイナミックレンジが改善された単一のX線画像を作成する処理装置(35)と、
を有しているX線システム(10)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/120,448 | 2005-05-03 | ||
US11/120,448 US7274771B2 (en) | 2005-05-03 | 2005-05-03 | Methods and systems for controlling exposure for medical imaging devices |
Publications (2)
Publication Number | Publication Date |
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JP2006312040A JP2006312040A (ja) | 2006-11-16 |
JP5452837B2 true JP5452837B2 (ja) | 2014-03-26 |
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Application Number | Title | Priority Date | Filing Date |
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JP2006125395A Expired - Fee Related JP5452837B2 (ja) | 2005-05-03 | 2006-04-28 | 医用イメージング装置のための露出を制御する方法及びシステム |
Country Status (5)
Country | Link |
---|---|
US (1) | US7274771B2 (ja) |
JP (1) | JP5452837B2 (ja) |
KR (1) | KR101292986B1 (ja) |
DE (1) | DE102006020812A1 (ja) |
GB (1) | GB2425927B (ja) |
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US7813478B2 (en) | 2007-02-08 | 2010-10-12 | Varian Medical Systems, Inc. | Method and apparatus to facilitate provision and use of multiple X-ray sources |
US8724921B2 (en) * | 2008-05-05 | 2014-05-13 | Aptina Imaging Corporation | Method of capturing high dynamic range images with objects in the scene |
JP5137770B2 (ja) * | 2008-09-30 | 2013-02-06 | シャープ株式会社 | 放射線画像撮影システム |
KR101520068B1 (ko) * | 2008-12-16 | 2015-05-13 | 삼성전자 주식회사 | 다중영상 합성장치 및 그 방법 |
JP5683116B2 (ja) * | 2010-01-27 | 2015-03-11 | キヤノン株式会社 | 放射線撮影装置、その制御方法及びプログラム |
US11231787B2 (en) | 2010-10-06 | 2022-01-25 | Nuvasive, Inc. | Imaging system and method for use in surgical and interventional medical procedures |
US8526700B2 (en) | 2010-10-06 | 2013-09-03 | Robert E. Isaacs | Imaging system and method for surgical and interventional medical procedures |
US9785246B2 (en) | 2010-10-06 | 2017-10-10 | Nuvasive, Inc. | Imaging system and method for use in surgical and interventional medical procedures |
US9769912B2 (en) * | 2010-10-20 | 2017-09-19 | Medtronic Navigation, Inc. | Gated image acquisition and patient model construction |
US20120099768A1 (en) | 2010-10-20 | 2012-04-26 | Medtronic Navigation, Inc. | Method and Apparatus for Reconstructing Image Projections |
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FR2970618B1 (fr) * | 2011-01-17 | 2013-08-30 | Gen Electric | Procede de controle d'emission dans un dispositif d'imagerie a rayons x |
US8737567B2 (en) * | 2011-01-27 | 2014-05-27 | Medtronic Navigation, Inc. | Image acquisition optimization |
KR101462444B1 (ko) * | 2013-04-09 | 2014-11-19 | 전자부품연구원 | 멀티 에너지 레벨 의료 영상 처리 방법 |
JP5677543B2 (ja) * | 2013-10-03 | 2015-02-25 | キヤノン株式会社 | X線ct撮影装置、x線ctの撮影方法、x線センサ、及び再構成装置 |
CN104921740B (zh) * | 2014-03-20 | 2018-08-17 | 上海西门子医疗器械有限公司 | 成像方法、成像装置及x光机 |
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-
2005
- 2005-05-03 US US11/120,448 patent/US7274771B2/en active Active
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2006
- 2006-04-28 JP JP2006125395A patent/JP5452837B2/ja not_active Expired - Fee Related
- 2006-04-28 GB GB0608493A patent/GB2425927B/en not_active Expired - Fee Related
- 2006-05-03 DE DE102006020812A patent/DE102006020812A1/de not_active Withdrawn
- 2006-05-03 KR KR1020060040000A patent/KR101292986B1/ko active IP Right Grant
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GB0608493D0 (en) | 2006-06-07 |
KR101292986B1 (ko) | 2013-08-02 |
US20060251216A1 (en) | 2006-11-09 |
GB2425927A (en) | 2006-11-08 |
US7274771B2 (en) | 2007-09-25 |
JP2006312040A (ja) | 2006-11-16 |
KR20060115610A (ko) | 2006-11-09 |
GB2425927B (en) | 2011-05-11 |
DE102006020812A1 (de) | 2006-11-09 |
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