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Simplified mathematical description of longitudinal recovery in multiple‐echo sequences
Author(s) -
Conturo Thomas E.,
Beth Albert H.,
Arenstorf Richard F.,
Price Ronald R.
Publication year - 1987
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.1910040309
Subject(s) - echo (communications protocol) , series (stratigraphy) , exponential function , relaxation (psychology) , t2 relaxation , algorithm , computer science , mathematics , mathematical analysis , magnetic resonance imaging , geology , medicine , computer network , paleontology , social psychology , radiology , psychology
The intensity of multiple echoes separated by a time 2τ has been modeled using the closed form of a finite geometric series. This eliminates long exponential series, introduces the number of echoes as an independent parameter, and corrects for the net T 1 relaxation during the echo train. Other sequences having echo trains can be modeled similarly. © 1987 Academic Press, Inc.
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