Journal
MAGNETIC RESONANCE IN MEDICINE
Volume 63, Issue 3, Pages 736-744Publisher
WILEY
DOI: 10.1002/mrm.22227
Keywords
black blood; vessel wall imaging; T-2 prepared inversion recovery; peripheral arteries
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Blood suppression in the lower extremities using flow-reliant methods such as double inversion recovery may be problematic due to slow blood flow. T-2 mapping using fast spin echo (FSE) acquisition was utilized to quantitate the effectiveness of double inversion recovery blood suppression in 13 subjects and showed that 25 +/- 12% of perceived vessel wall pixels in the popliteal arteries contained artifactual blood signal. To overcome this problem, a flow-insensitive T-2-prepared inversion recovery sequence was implemented and optimal timing parameters were calculated for FSE acquisition. Black blood vessel wall imaging of the popliteal and femoral arteries was performed using two-dimensional T-2-prepared inversion recovery-FSE in the same 13 subjects. Comparison with two-dimensional double inversion recovery-FSE showed that T-2-prepared inversion recovery-FSE reduced wall-mimicking blood artifacts that inflated double inversion recovery-FSE vessel wall area measurements in the popliteal artery. Magn Reson Med 63:736-744, 2010. (C) 2010 Wiley-Liss, Inc.
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