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Improved efficiency in double-inversion fast spin-echo imaging
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DOI：10.1002/mrm.10152.png)
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Abstract
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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. (C) 2002 Wiley-Liss, Inc.
Keywords:
MRA
double-inversion fast spin-echo
black-blood MRA
vascular image quality
acquisition efficiency
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