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Some results of high‐flow‐velocity NMR imaging using selection gradient
Author(s) -
Cho Z. H.,
Oh C. H.,
Mun C. W.,
Kim Y. S.
Publication year - 1986
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910030606
Subject(s) - bloch equations , flow (mathematics) , phase (matter) , encoding (memory) , nuclear magnetic resonance , flow velocity , selection (genetic algorithm) , spin echo , physics , computational physics , materials science , mechanics , computer science , magnetic resonance imaging , artificial intelligence , medicine , quantum mechanics , radiology
A simple and new flow velocity measurement technique using conventional spin‐echo sequence is proposed and its applications to a preclinical result are presented. This technique utilizes the phase velocity encoding effect due to 180° rf and its corresponding selection gradient. This phase encoding and its phase velocity relations have been obtained by numerical solution of the Bloch equation. A flow velocity measurement obtained with a volunteer using this proposed technique indicates close agreement with other previously measured values.