Abstract #2682
Combined acquisition of low-dose time-resolved and single-phase high-resolution contrast-enhanced MRA in the evaluation of spinal vascular diseases
Bum-soo Kim 1 , Jieun Back 1 , Song Lee 1 , Jinhee Jang 1 , Hyun Seok Choi 1 , So-Lyung Jung 1 , and Kook-Jin Ahn 1
1
Department of Radiology, Seoul St.Mary's
Hospital, The Catholic University of Korea, Seoul,
Seoul, Korea
Spinal cord MRA is useful in preangiographic evaluation
of spinal vascular diseases, but limited FOV makes their
detection in a single MRA session difficult. Combined
low-dose time-resolved and single-phase high-resolution
(HR) contrast-enhanced MRA (CE-MRA) at 3.0T was
performed in 9 consecutive patients. Low-dose TR CE-MRA
was useful in localization of spinal vascular disease
and bolus timing of subsequent single phase high
resolution CE-MRA. CE-MRA correctly diagnosed spinal AVM
(n=5) and spinal dural arteriovenous fistula (DAVF)
(n=4), and was useful as preangiographic tool providing
information regarding level of shunt and origin of
intercostal and lumbar arteries.
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