Document Detail


Real-time motion detection in spiral MRI using navigators.
MedLine Citation:
PMID:  7808265     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A technique has been developed whereby motion can be detected in real time during the acquisition of data. This enables the implementation of an algorithm to accept or reject and reacquire data during a scan. Frames of data with motion are rejected and reacquired on the fly so that by the end of the scan, a complete motion-free data set has been acquired. The algorithm has been implemented on several different types of sequences. Preliminary in vivo studies indicate that motion artifacts are dramatically reduced.
Authors:
T S Sachs; C H Meyer; B S Hu; J Kohli; D G Nishimura; A Macovski
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine     Volume:  32     ISSN:  0740-3194     ISO Abbreviation:  Magn Reson Med     Publication Date:  1994 Nov 
Date Detail:
Created Date:  1995-02-02     Completed Date:  1995-02-02     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  8505245     Medline TA:  Magn Reson Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  639-45     Citation Subset:  IM    
Affiliation:
Department of Electrical Engineering, Stanford University, CA 94305.
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MeSH Terms
Descriptor/Qualifier:
Abdomen / anatomy & histology
Algorithms*
Artifacts*
Computer Systems
Coronary Vessels / anatomy & histology
Fourier Analysis
Heart / anatomy & histology
Humans
Image Enhancement / instrumentation,  methods*
Image Processing, Computer-Assisted / instrumentation,  methods
Liver / anatomy & histology
Magnetic Resonance Imaging / instrumentation,  methods*
Models, Structural
Models, Theoretical
Motion
Respiration
Time Factors
Grant Support
ID/Acronym/Agency:
CA50984/CA/NCI NIH HHS; HL39297/HL/NHLBI NIH HHS; HL39478/HL/NHLBI NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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