Article Figures & Data
Figures
- fig 1.
T2-weighted MR image (3500/96/1) shows unruptured VM of the right antero-temporal lobe (A), and thin-slice dynamic CT shows disappearance of nidus enhancement (arrow) and large draining vein (B and C).
- fig 2.
Serial right internal carotid angiogram reveals the AVM-VM malformation.
A, Arterial phase shows a small AVM nidus fed by the branch of the middle cerebral artery (arrow).
B, Later arterial phase shows a single AVM drainer (arrow heads) joining collecting veins along with converging small medullary veins.
C, Venous phase shows the typical “caput medusae” appearance of a VM. Note the dysmorphism of the sylvian vein.
- fig 3.
Anteroposterior (A) and lateral (B) views on a stereotactic right internal carotid angiogram, and stereotactic CT (C) show AVM component of lesion. At radiosurgery, 25 Gy is delivered to 50% isodose line using 1 isocenter (maximum dose 50 Gy).
- fig 4.
T2-weighted MR image obtained 1 year after radiosurgery shows no hemorrhagic or ischemic complications (A). Thin-slice dynamic CT shows absence of nidus enhancement (B and C).
- fig 5.
Serial right internal carotid angiogram obtained 1 year after radiosurgery shows total obliteration of the AVM and preservation of the VM during the arterial (A), late arterial (B), and venous (C) phases
