Abstract #3516
Hyperintensity in the Cerebral Venous Systems on 3D TOF MRA: Better Understanding of the Mechanism Using Dynamic Head and Neck MRA
Eung Yeop Kim 1 and Jun-Young Chung 2,3
1
Radiology, Gachon University Gil Medical
Center, Incheon, ., Korea,
2
Biomedical
Engineering, College of Health Sciences, Gachon
University, Seongnam, ., Korea,
3
Neuroscience
Research Institute, Gachon University, Incheon, ., Korea
The cerebral venous sinuses may normally show
hyperintensity on cerebral TOF MRA, which oftentimes
mimics pathologic conditions such as arteriovenous
fistula. Using the source images of dynamic head and
neck MRA, we demonstrated that the relative size of the
inferior petrosal sinus to the ipsilateral
anterior/lateral condylar veins is the only factor for
visualization of hyperintensity in the inferior petrosal
sinus on both sides on cerebral TOF MRA. Extrinsic
compression of left internal jugular vein may be
attributable to the presence of hyperintensity in the
left sigmoid sinus on cerebral TOF MRA.
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