Abstract #4021
Optimization for non-contrast enhanced MRA of renal artery at 3T: evaluation of BBTI with consideration of renal blood velocity
Yasuhisa Kurata 1 , Aki Kido 1 , Koji Fujimoto 1 , Kayo Kiguchi 1 , Kyoko Takakura 1 , and Kaori Togashi 1
1
Department of Diagnostic Imaging and Nuclear
Medicine, Kyoto University Graduate School of Medicine,
Kyoto, Kyoto, Japan
We aimed to evaluate the optimal BBTI for obtaining
non-contrast-enhanced MRA of renal artery using
time-SLIP technique at 3.0-T considering with the
changes of renal blood velocities according to the ages.
Quantitatively, relative signal intensity of renal
artery was best at BBTI of 1400msec, and optimal BBTI
for younger subjects (under 50y.o.) was 1600msec and
1800msec, and that for older subjects was 1800msec
qualitatively. Then, suggestive BBTI may be
1600-1800msec regardless of the renal blood velocity at
3T.
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