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Fig 3. A 37-year-old woman with small high-flow AVM (pial fistula).
A, Large arteriovenous shunt from anterior cerebral artery.
B, Microcatheter just proximal to the shunt; from this point Onyx 34 was slowly injected.
C, Onyx cast after injecting 3.4 mL in 16 minutes.
D, Complete closure of the fistula at 6 weeks follow-up angiogram.
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