Abstract #3624
Non-contrast-enhanced MR Arteriography with Balanced Steady-State Free-Precession Sequence and Time-Spatial Labeling Inversion Pulses: Comparison of Imaging with Flow-in and Modified Flow-out Methods
Hiroyoshi Isoda 1 , Akihiro Furuta 1 , Rikiya Yamashita 1 , Tsuyoshi Ohno 1 , Seiya Kawahara 1 , Hironori Shimizu 1 , Aki Kido 1 , Koji Fujimoto 1 , Yasutaka Fushimi 1 , Kaori Togashi 1 , and Hiroshi Kusahara 2
1
Kyoto University Graduate School of
Medicine, Kyoto, Kyoto, Japan,
2
Toshiba
Medical Systems Corporation, Otawara, Tochigi, Japan
Long TI of a selective tagging pulse in flow-out method
is favorable for peripheral vessel visualization to
maintain background signal suppression using a
nonselective inversion recovery pulse. The aim of this
study was to compare and evaluate images of
non-contrast-enhanced MR arteriography acquired with two
different methods, the flow-in and modified flow-out
methods using the selective tagging pulse with long TI.
The vessel-to-liver contrast and the quality of vessel
visualization were better with the modified flow-out
than flow-in method. Non-contrast-enhanced MR
arteriography with the modified flow-out method improved
the visualization of the intrahepatic artery in
comparison with the flow-in method.
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