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Optimization of flip angle for T 1 dependent contrast in MRI
Author(s) -
Pelc Norbert J.
Publication year - 1993
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.1910290519
Subject(s) - flip angle , contrast (vision) , nuclear magnetic resonance , simple (philosophy) , mathematics , physics , magnetic resonance imaging , optics , medicine , philosophy , epistemology , radiology
The flip angle which maximizes contrast between materials with different T 1 can be caculatd from the root of a cubic expression. A simple closed form expression can be used if contrast is defined in a differential sense and results in only slight contrast loss even with large T 1 differences.