Selective MRA for portal venography using Beam Saturation pulse
Takashi Nishihara 1 , Hiroyuki Itagaki 1 , Kuniaki Harada 1 , Masatomo Yokose 1 , Oka Kuniharu 1 , and Tetsuhiko Takahashi 1
MRI System Division, Hitachi Medical
Corporation, Kashiwa, Chiba, Japan
In order to visualize the blood flow in portal vein, we
investigate use of a 2D beam excitation pre-saturationpulse
(hereafter Beam Sat pulse) with the flow phantom and
healthy volunteer.@As a result, the Beam Sat pulse is
able to saturate the portal vein selectively. When
combined with unenhanced portal venography, the Beam Sat
pulse seems to visualize additional information about
the blood flow in portal vein.
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