DE3446717A1 - Kernspintomograph mit einem bewegungsdetektor - Google Patents

Kernspintomograph mit einem bewegungsdetektor

Info

Publication number
DE3446717A1
DE3446717A1 DE19843446717 DE3446717A DE3446717A1 DE 3446717 A1 DE3446717 A1 DE 3446717A1 DE 19843446717 DE19843446717 DE 19843446717 DE 3446717 A DE3446717 A DE 3446717A DE 3446717 A1 DE3446717 A1 DE 3446717A1
Authority
DE
Germany
Prior art keywords
frequency
magnetic resonance
impedance
coil arrangement
nuclear magnetic
Prior art date
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.)
Withdrawn
Application number
DE19843446717
Other languages
German (de)
English (en)
Inventor
Dirk Dr. Buikman
Thomas Helzel
Peter 2000 Hamburg Röschmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Intellectual Property and Standards GmbH
Original Assignee
Philips Patentverwaltung GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Patentverwaltung GmbH filed Critical Philips Patentverwaltung GmbH
Priority to DE19843446717 priority Critical patent/DE3446717A1/de
Priority to DE8585202037T priority patent/DE3576408D1/de
Priority to EP85202037A priority patent/EP0186238B1/de
Priority to US06/809,635 priority patent/US4694836A/en
Priority to IL77379A priority patent/IL77379A/xx
Priority to JP60283181A priority patent/JPS61154656A/ja
Priority to FI855053A priority patent/FI855053L/fi
Priority to CN85109632A priority patent/CN1006359B/zh
Publication of DE3446717A1 publication Critical patent/DE3446717A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
    • A61B5/1126—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb using a particular sensing technique
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
    • A61B5/721—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts using a separate sensor to detect motion or using motion information derived from signals other than the physiological signal to be measured
    • 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56509—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to motion, displacement or flow, e.g. gradient moment nulling
    • 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
    • G01R33/567—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution gated by physiological signals, i.e. synchronization of acquired MR data with periodical motion of an object of interest, e.g. monitoring or triggering system for cardiac or respiratory gating

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Signal Processing (AREA)
  • Veterinary Medicine (AREA)
  • Physiology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Psychiatry (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE19843446717 1984-12-21 1984-12-21 Kernspintomograph mit einem bewegungsdetektor Withdrawn DE3446717A1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE19843446717 DE3446717A1 (de) 1984-12-21 1984-12-21 Kernspintomograph mit einem bewegungsdetektor
DE8585202037T DE3576408D1 (de) 1984-12-21 1985-12-10 Verfahren zur erzeugung eines bewegungssignals und kernspintomograph fuer ein solches verfahren.
EP85202037A EP0186238B1 (de) 1984-12-21 1985-12-10 Verfahren zur Erzeugung eines Bewegungssignals und Kernspintomograph für ein solches Verfahren
US06/809,635 US4694836A (en) 1984-12-21 1985-12-16 MRI tomography apparatus for generating a motion signal
IL77379A IL77379A (en) 1984-12-21 1985-12-18 Method of generating a motion signal and mri tomography apparatus for performing the method
JP60283181A JPS61154656A (ja) 1984-12-21 1985-12-18 Ｍｒｉトモグラフィ装置
FI855053A FI855053L (fi) 1984-12-21 1985-12-18 Foerfarande foer aostadkommande av en roerelsesignal samt mri-tomografianlaeggning foer utfoerande av naemnda foerfarande.
CN85109632A CN1006359B (zh) 1984-12-21 1985-12-18 产生运动信号的方法和实现该方法的磁共振断层照相装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843446717 DE3446717A1 (de) 1984-12-21 1984-12-21 Kernspintomograph mit einem bewegungsdetektor

Publications (1)

Publication Number Publication Date
DE3446717A1 true DE3446717A1 (de) 1986-06-26

Family

ID=6253436

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843446717 Withdrawn DE3446717A1 (de) 1984-12-21 1984-12-21 Kernspintomograph mit einem bewegungsdetektor

Country Status (2)

Country Link
JP (1) JPS61154656A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3446717A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3804446A1 (de) * 1987-02-16 1988-08-25 Toshiba Kawasaki Kk Magnetresonanz-bildgeraet
WO2008114178A1 (en) * 2007-03-20 2008-09-25 Koninklijke Philips Electronics N.V. Magnetic resonance imaging system and method
DE102014208537A1 (de) * 2014-05-07 2015-11-12 Siemens Aktiengesellschaft Magnetresonanzvorrichtung mit einer Bewegungserfassungseinheit sowie ein Verfahren zu einer Erfassung einer Bewegung eines Patienten während einer Magnetresonanzuntersuchung
EP3581954A1 (de) * 2018-06-12 2019-12-18 Siemens Healthcare GmbH Sensor und magnetresonanztomograph mit drahtloser nahfeldübertragung von energie und daten

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0551306U (ja) * 1991-12-17 1993-07-09 横河メディカルシステム株式会社 ブリッジ一体型ボディコイル
JP7123767B2 (ja) 2018-11-20 2022-08-23 キヤノンメディカルシステムズ株式会社 磁気共鳴撮像装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3804446A1 (de) * 1987-02-16 1988-08-25 Toshiba Kawasaki Kk Magnetresonanz-bildgeraet
WO2008114178A1 (en) * 2007-03-20 2008-09-25 Koninklijke Philips Electronics N.V. Magnetic resonance imaging system and method
DE102014208537A1 (de) * 2014-05-07 2015-11-12 Siemens Aktiengesellschaft Magnetresonanzvorrichtung mit einer Bewegungserfassungseinheit sowie ein Verfahren zu einer Erfassung einer Bewegung eines Patienten während einer Magnetresonanzuntersuchung
US10722151B2 (en) 2014-05-07 2020-07-28 Siemens Aktiengesellschaft Magnetic resonance device having a motion detection unit and a method for detecting a movement of a patient during a magnetic resonance examination
EP3581954A1 (de) * 2018-06-12 2019-12-18 Siemens Healthcare GmbH Sensor und magnetresonanztomograph mit drahtloser nahfeldübertragung von energie und daten
CN110596624A (zh) * 2018-06-12 2019-12-20 西门子医疗有限公司 传感器和具有无线近场传输的磁共振断层成像设备
US10976390B2 (en) 2018-06-12 2021-04-13 Siemens Healthcare Gmbh Sensor and magnetic resonance tomography unit with wireless near field transmission of energy and data
CN110596624B (zh) * 2018-06-12 2022-06-17 西门子医疗有限公司 传感器和具有无线近场传输的磁共振断层成像设备

Also Published As

Publication number Publication date
JPH0566811B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-09-22
JPS61154656A (ja) 1986-07-14

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee