DE3676481D1 - Zentral angeordnete phasenkodierung. - Google Patents

Zentral angeordnete phasenkodierung.

Info

Publication number
DE3676481D1
DE3676481D1 DE8686904857T DE3676481T DE3676481D1 DE 3676481 D1 DE3676481 D1 DE 3676481D1 DE 8686904857 T DE8686904857 T DE 8686904857T DE 3676481 T DE3676481 T DE 3676481T DE 3676481 D1 DE3676481 D1 DE 3676481D1
Authority
DE
Germany
Prior art keywords
centrally arranged
phase coding
arranged phase
coding
centrally
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.)
Expired - Lifetime
Application number
DE8686904857T
Other languages
English (en)
Inventor
E Haacke
A Kershaw
L Patrick
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 Nuclear Medicine Inc
Original Assignee
Picker International Inc
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
Priority claimed from US06/764,439 external-priority patent/US4701706A/en
Priority claimed from US06/782,075 external-priority patent/US4716368A/en
Priority claimed from US06/798,551 external-priority patent/US4724386A/en
Application filed by Picker International Inc filed Critical Picker International Inc
Application granted granted Critical
Publication of DE3676481D1 publication Critical patent/DE3676481D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01R33/44—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
    • G01R33/5673—Gating or triggering based on a physiological signal other than an MR signal, e.g. ECG gating or motion monitoring using optical systems for monitoring the motion of a fiducial marker
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Physiology (AREA)
  • Biophysics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Signal Processing (AREA)
  • Cardiology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE8686904857T 1985-08-09 1986-07-31 Zentral angeordnete phasenkodierung. Expired - Lifetime DE3676481D1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/764,439 US4701706A (en) 1985-05-07 1985-08-09 Generalized reconstruction technique
US06/782,075 US4716368A (en) 1985-08-09 1985-09-30 Magnetic resonance reconstruction and scanning techniques using known information, constraints, and symmetry relations
US06/798,551 US4724386A (en) 1985-09-30 1985-11-15 Centrally ordered phase encoding
PCT/GB1986/000457 WO1987000923A1 (en) 1985-08-09 1986-07-31 Centrally ordered phase encoding

Publications (1)

Publication Number Publication Date
DE3676481D1 true DE3676481D1 (de) 1991-02-07

Family

ID=27419590

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686904857T Expired - Lifetime DE3676481D1 (de) 1985-08-09 1986-07-31 Zentral angeordnete phasenkodierung.

Country Status (4)

Country Link
EP (1) EP0233235B1 (de)
JP (1) JPH0829145B2 (de)
DE (1) DE3676481D1 (de)
WO (1) WO1987000923A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706026A (en) * 1985-08-16 1987-11-10 General Electric Company Method for reducing image artifacts due to periodic signal variations in NMR imaging
US4777441A (en) * 1987-03-23 1988-10-11 Varian Associates, Inc. Rotating frame zeugmatography
US6024090A (en) 1993-01-29 2000-02-15 Aradigm Corporation Method of treating a diabetic patient by aerosolized administration of insulin lispro
DE19607023A1 (de) * 1996-02-24 1997-08-28 Philips Patentverwaltung MR-Verfahren mit reduzierten Bewegungsartefakten

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59155239A (ja) * 1983-02-23 1984-09-04 株式会社東芝 診断用核磁気共鳴装置
US4581581A (en) * 1983-06-30 1986-04-08 General Electric Company Method of projection reconstruction imaging with reduced sensitivity to motion-related artifacts
JPS6120541A (ja) * 1984-07-05 1986-01-29 株式会社島津製作所 呼吸性体動による核磁気共鳴像の歪を補正する方法
GB8417290D0 (en) * 1984-07-06 1984-08-08 Picker Int Ltd Nuclear magnetic resonance method
DE3570135D1 (en) * 1984-08-01 1989-06-15 Siemens Ag Apparatus for producing images of an object under examination

Also Published As

Publication number Publication date
WO1987000923A1 (en) 1987-02-12
EP0233235B1 (de) 1991-01-02
JPH0829145B2 (ja) 1996-03-27
JPS63501340A (ja) 1988-05-26
EP0233235A1 (de) 1987-08-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: PATENTANWAELTE REICHEL UND REICHEL, 60322 FRANKFURT

8339 Ceased/non-payment of the annual fee