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Dual‐Echo Interleaved Echo‐Planar Imaging of the Brain
Author(s) -
Slavin Glenn S.,
Butts Kim,
Rydberg John N.,
Jack Clifford R.,
Riederer Stephen J.
Publication year - 1995
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.1910330218
Subject(s) - echo (communications protocol) , echo time , echo planar imaging , spin echo , nuclear magnetic resonance , pulse sequence , contrast (vision) , physics , noise (video) , magnetic resonance imaging , computer science , medicine , optics , radiology , artificial intelligence , image (mathematics) , computer network
An interleaved echo‐planar imaging (EPI) technique is described that provides images from 20 sections of the brain at two echo times (27 and 84 ms) in 1:05. Six echoes per image per repetition are collected in 24 repetitions of the pulse sequence. MR images of the brain obtained from five volunteers using the dual‐echo EPI sequence, fast spin‐echo (FSE), and conventional dual‐echo spin‐echo were evaluated qualitatively for diagnostic use and quantitatively for relative signal‐to‐noise ratio (SNR), contrast, and contrast‐to‐noise ratios (CNR).