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Flow‐independent magnetic resonance projection angiography
Author(s) -
Wright G. A.,
Nishimura D. G.,
Macovski A.
Publication year - 1991
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.1910170117
Subject(s) - magnetic resonance imaging , projection (relational algebra) , blood flow , nuclear magnetic resonance , flow (mathematics) , magnetic resonance angiography , biomedical engineering , angiography , signal (programming language) , computer science , medicine , physics , radiology , algorithm , mechanics , programming language
The performance of current, flow‐based sequences for imaging vasculature using MR is severely restricted in regions with inherently slow flow. We address this problem with a flow‐independent imaging method. Specifically, we generate projection images of blood in the limbs while suppressing signal from all other tissues (primarily skeletal muscle, bone marrow, and subcutaneous fat) using a flow‐compensated, water‐selective, short TI inversion recovery sequence with a long echo time. We experimentally evaluate the effectiveness of this sequence and present in vivo results clearly demonstrating the method's potential. © 1991 Academic Press, Inc.