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Black-blood MR angiography with grase: Measurement of flow-induced signal attenuation

✍ Scribed by Beverly C. Yu; Hernan Jara; Elias R. Melhem; Shelton D. Caruthers; E. Kent Yucel

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 504 KB
Volume: 8
Category: Article
ISSN: 1053-1807
DOI: 10.1002/jmri.1880080623

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✦ Synopsis

We investigated the feasibility of performing black-blood MR angiography (MRA) with the gradient and spin-echo (GRASE) pulse sequence. Phantom experiments and human testing were conducted, and the results were compared with those of turbo spin-echo (TSE). We demonstrated that both techniques are able to produce signal suppression of flowing fluid to background level. With fewer radiofrequency (RF)-refocusing pulses, GRASE pulse sequences could serve as an alternative black-blood technique of reduced RF power exposure and shorter scan time. These relative advantages of GRASE may become useful when high-resolution images are taken.

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