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Rapid scan magnetic resonance angiography
Author(s) -
Dumoulin C. L.,
Souza S. P.,
Hart H. 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.1910050304
Subject(s) - nuclear magnetic resonance , magnetic resonance imaging , magnetic resonance angiography , angiography , radiology , medicine , physics
Abstract The change in phase of transverse spin magnetization induced by macroscopic spin motion in the direction of an applied magnetic field gradient is used to generate projection angiograms. The method can provide a quantitative measure of laminar and pulsatile flow. Cardiac synchronization is not required provided that data are acquired at many points in the cardiac cycle. The use of short TR and a large number of excitations provides better suppression of stationary tissue and patient motion artifacts than is possible with cardiac gated studies. In addition to improvements in image quality, a substantial shortening of Scan time is obtained. © 1987 Academic Press, Inc.