Improved efficiency in double-inversion fast spin-echo imaging.
Double-inversion fast spin-echo (FSE) pulse sequences can be designed to provide excellent suppression of blood signal in black-blood MRI. However, because a nonselective inversion is used, these sequences typically have been highly inefficient. In this work it is demonstrated that the efficiency of double-inversion sequences can be greatly improved by a form of interleaving in which all of the slices to be imaged in a single pass are reinverted each time a signal is obtained from any single slice. To date, several studies have demonstrated a high level of blood suppression with these more efficient techniques.
Parker
Dennis L
DL
Department of Radiology, University of Utah, Salt Lake City 84108, USA. parker@doug.med.utah.edu
Goodrich
K Craig
KC
Masiker
Marilyn
M
Tsuruda
Jay S
JS
Katzman
Gregory L
GL
D000368:Aged; D000369:Aged, 80 and over; D002340:Carotid Artery Diseases / Q000175:diagnosis; D006801:Humans; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008875:Middle Aged