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FIG 5. 62-year-old man with an occipitoparietal AVM.
A, Axial T2-weighted (2900/87.5/2) image shows the set-up acquisition block for the lateral projection MR-DSA at the level of the nidus.
B, Lateral projection from a selective right internal carotid conventional catheter angiogram shows a flow-related aneurysm on the pericallosal artery (arrow).
C–E, This projection not only shows the nidus in the early arterial phase but also the flow-related aneurysm (arrow, C). In addition, there is an anterior communicating artery aneurysm, not well shown on this projection, which was noted by consensus at review. Late arterial phase (D), early venous phase (E).
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