Published ahead of print on June 26, 2008
doi: 10.3174/ajnr.A1187
Assessment of Dural Arteriovenous Fistulas of the Cavernous Sinuses on 3D Dynamic MR Angiography
H. Akibaa,
M. Tamakawaa,
H. Hyodoha,
K. Hyodoha,
N. Yamaa,
T. Nonakab,
Y. Minamidab,
M. Hashimotoc and
M. Hareyamaa
a Department of Radiology, Sapporo Medical University, School of Medicine, Sapporo, Japan
b Department of Neurosurgery, Sapporo Medical University, School of Medicine, Sapporo, Japan
c Department of Ophthalmology, Sapporo Medical University, School of Medicine, Sapporo, Japan
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Fig 1. A 52-year-old woman presenting with proptosis and chemosis in the right orbit and 2 months of diplopia resulting from anterior draining DAVFs of the right cavernous sinus. Subtracted maximum-intensity-projection images on 3D dynamic MRA. A and B, Early venous enhancement is demonstrated within the right cavernous sinus and superior ophthalmic vein in the arterial-dominant phase (A) and is more clearly identified in the next phase (B). C, The venous structures are visualized by normal venous return in the arteriovenous phase.
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Fig 2. A 65-year-old woman with left frontal pain and diplopia for 1 month without congestive orbito-ocular features resulting from DAVFs of the left cavernous sinus. Reversed source sectional images in the arterial-dominant phase on 3D dynamic MRA. A and B, Early venous enhancement is demonstrated within the bilateral inferior petrosal sinuses, basilar plexus, left pterygoid plexus (A), and left cavernous sinus (B). C, In addition, retrograde cortical reflux to the left sphenoparietal sinus is a clinically important feature.
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