JP4838124B2 - 磁気共鳴イメージングのためのテーブル位置センシング装置及び方法 - Google Patents
磁気共鳴イメージングのためのテーブル位置センシング装置及び方法 Download PDFInfo
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- JP4838124B2 JP4838124B2 JP2006518381A JP2006518381A JP4838124B2 JP 4838124 B2 JP4838124 B2 JP 4838124B2 JP 2006518381 A JP2006518381 A JP 2006518381A JP 2006518381 A JP2006518381 A JP 2006518381A JP 4838124 B2 JP4838124 B2 JP 4838124B2
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- 238000000034 method Methods 0.000 title claims description 8
- 238000002595 magnetic resonance imaging Methods 0.000 title description 35
- 238000003384 imaging method Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000002059 diagnostic imaging Methods 0.000 description 2
- 230000005284 excitation 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
- 238000005259 measurement Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
- A61B5/704—Tables
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
- A61B5/706—Indicia not located on the patient, e.g. floor marking
-
- 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
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
-
- 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
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0492—Positioning of patients; Tiltable beds or the like using markers or indicia for aiding patient positioning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
-
- 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
- A61B6/04—Positioning of patients; Tiltable beds or the like
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
- G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
- G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
- G01R33/56375—Intentional motion of the sample during MR, e.g. moving table imaging
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- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- High Energy & Nuclear Physics (AREA)
- Radiology & Medical Imaging (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Description
Claims (4)
- 検査領域における主磁場を生成するための主マグネット;
前記主磁場において磁場勾配を生成するための複数の勾配マグネット;
前記検査領域に高周波信号を送信し、前記検査領域に配置された被検体に磁気共鳴を励起するための高周波コイル;
前記被検体からの磁気共鳴信号を受信するための高周波コイル;
前記被検体を支持するための被検体支持台;
前記検査領域内において前記被検体支持台の位置を制御するための位置制御器;及び
前記被検体支持台の前記位置を、直接、測定するための位置センサ;
を有するMRI装置であって、
前記位置センサは、前記被検体支持台及び前記MRI装置に関する固定位置の少なくとも1つに備えられている複数の目盛尺と、前記目盛尺を読み取るための前記目盛尺の向かい側で、前記被検体支持台及び前記MRI装置に関する固定位置の少なくとも1つに備えられている複数の読み取りヘッドとを有し、
前記目盛尺に沿った目盛りが可変間隔であり、前記位置センサは前記目盛りの間隔を利用して位置を測定する、
MRI装置。 - 請求項1に記載のMRI装置であって、前記複数の目盛り尺の各目盛り尺の間隔の粗さが互いに異なっており、前記位置センサは前記被検体支持台の絶対位置を検出する、ことを特徴とするMRI装置。
- 検査領域における主磁場を生成する段階;
前記主磁場において磁場勾配を生成する段階;
前記検査領域に高周波信号を送信し、前記検査領域に配置された被検体に磁気共鳴を励起する段階;
前記被検体から磁気共鳴信号を受信する段階;
前記検査領域内において被検体支持台の位置を制御する段階;及び
前記被検体支持台の前記位置を、直接、測定するため段階;
を有するMRI方法であって、
前記測定するための段階は:
可変間隔の目盛りをもつ複数の目盛尺を読み取ることを含み、目盛り尺の目盛りの間隔を利用して前記位置を測定する、
MRI方法。 - 請求項3に記載のMRI方法であって、前記被検体支持台の前記位置を、直接、測定する前記段階は、固定基準フレームに対する前記被検体支持台の絶対位置を測定することを含み、前記複数の目盛り尺の各目盛り尺の間隔の粗さが互いに異なっている、ことを特徴とするMRI方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48400303P | 2003-06-30 | 2003-06-30 | |
US60/484,003 | 2003-06-30 | ||
PCT/IB2004/001955 WO2005001497A1 (en) | 2003-06-30 | 2004-06-01 | Table position sensing for magnetic resonance imaging |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007515998A JP2007515998A (ja) | 2007-06-21 |
JP4838124B2 true JP4838124B2 (ja) | 2011-12-14 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006518381A Expired - Fee Related JP4838124B2 (ja) | 2003-06-30 | 2004-06-01 | 磁気共鳴イメージングのためのテーブル位置センシング装置及び方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7319325B2 (ja) |
EP (1) | EP1642148A1 (ja) |
JP (1) | JP4838124B2 (ja) |
CN (1) | CN1816753B (ja) |
WO (1) | WO2005001497A1 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1790286B1 (en) * | 2004-09-06 | 2012-12-26 | Hitachi Medical Corporation | Magnetic resonance imaging apparatus and method |
US7498811B2 (en) * | 2005-11-16 | 2009-03-03 | Macfarlane Duncan L | Apparatus and method for patient movement tracking |
US7847549B2 (en) * | 2006-01-05 | 2010-12-07 | Hitachi Medical Corporation | Magnetic resonance imaging apparatus |
JP4896526B2 (ja) * | 2006-01-11 | 2012-03-14 | 株式会社東芝 | 磁気共鳴イメージング装置 |
US20090082661A1 (en) * | 2007-09-20 | 2009-03-26 | General Electric Company | System and method to automatically assist mobile image acquisition |
DE102008040003A1 (de) * | 2008-08-27 | 2009-01-29 | Siemens Aktiengesellschaft | Magnetresonanzgerät, Lokalspulenpositioniereinrichtung und Lokalspule |
US8513946B2 (en) * | 2009-06-29 | 2013-08-20 | Imris Inc. | Movable table for magnetic resonance imaging |
CN103037756B (zh) * | 2010-07-28 | 2015-09-30 | 皇家飞利浦电子股份有限公司 | 针对高磁环境的具有用于驱动压盘的压电电机的记录器 |
CN103054579B (zh) * | 2011-10-24 | 2016-01-20 | 上海联影医疗科技有限公司 | 磁共振成像系统 |
CN103417213B (zh) * | 2012-05-15 | 2015-09-02 | 上海联影医疗科技有限公司 | 线圈定位装置 |
DE102012212011B4 (de) * | 2012-07-10 | 2022-02-24 | Siemens Healthcare Gmbh | Patientenlagerungsvorrichtung sowie eine medizinische Bildgebungsvorrichtung mit der Patientenlagerungsvorrichtung |
DE102012215004A1 (de) * | 2012-08-23 | 2014-02-27 | Siemens Aktiengesellschaft | Erkennung der statischen Position von Sende-/Empfangsspulen eines Magnetresonanztomographen mit Hilfe von elektronisch lesbaren Etiketten |
CN103784138B (zh) * | 2012-10-30 | 2015-04-15 | 上海联影医疗科技有限公司 | 病床、磁共振成像系统 |
JP6615122B2 (ja) * | 2014-05-09 | 2019-12-04 | コーニンクレッカ フィリップス エヌ ヴェ | Mriモジュールと、rfコイルの位置を決定するための手段とを含む療法システム |
KR20160103518A (ko) * | 2015-02-24 | 2016-09-01 | 삼성전자주식회사 | 의료 영상 처리 장치 및 의료 영상 처리 방법 |
US10830842B2 (en) * | 2015-09-30 | 2020-11-10 | Koninklijke Philips N.V. | Method for device localization using magnetic resonance imaging |
CN107411763B (zh) * | 2016-05-24 | 2020-10-23 | 上海西门子医疗器械有限公司 | 确定一对象的位置的驱动系统、检查床和医疗器械 |
EP3620808A1 (en) * | 2018-09-06 | 2020-03-11 | Koninklijke Philips N.V. | Coil arrangement for magnetic resonance imaging system |
CN109044356A (zh) * | 2018-09-11 | 2018-12-21 | 即智数字科技(苏州)有限公司 | 一种共享式mri三维医疗影像平台 |
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JPH10258049A (ja) * | 1997-03-19 | 1998-09-29 | Hitachi Medical Corp | 医用診断装置の寝台制御装置 |
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2004
- 2004-06-01 JP JP2006518381A patent/JP4838124B2/ja not_active Expired - Fee Related
- 2004-06-01 WO PCT/IB2004/001955 patent/WO2005001497A1/en active Application Filing
- 2004-06-01 EP EP04735626A patent/EP1642148A1/en not_active Ceased
- 2004-06-01 US US10/560,695 patent/US7319325B2/en not_active Expired - Lifetime
- 2004-06-01 CN CN2004800185445A patent/CN1816753B/zh not_active Expired - Fee Related
Patent Citations (6)
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JPS6310766B2 (ja) * | 1981-01-07 | 1988-03-09 | Mitsutoyo Kk | |
JPH0266484A (ja) * | 1988-09-01 | 1990-03-06 | Nec Corp | パルスレーザ測距装置 |
JP2714492B2 (ja) * | 1991-02-25 | 1998-02-16 | オークマ株式会社 | 位置検出器 |
JPH04329312A (ja) * | 1991-04-30 | 1992-11-18 | Nikon Corp | アブソリュート・エンコーダ |
JPH07213505A (ja) * | 1994-01-31 | 1995-08-15 | Shimadzu Corp | 画像診断装置 |
JPH10258049A (ja) * | 1997-03-19 | 1998-09-29 | Hitachi Medical Corp | 医用診断装置の寝台制御装置 |
Also Published As
Publication number | Publication date |
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CN1816753A (zh) | 2006-08-09 |
EP1642148A1 (en) | 2006-04-05 |
US20060142655A1 (en) | 2006-06-29 |
US7319325B2 (en) | 2008-01-15 |
CN1816753B (zh) | 2010-10-06 |
JP2007515998A (ja) | 2007-06-21 |
WO2005001497A1 (en) | 2005-01-06 |
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