We report 5 cases of dural AVMs, in which MRA images were considered very useful for evaluating the effectiveness of treatments, such as transvenous embolization therapy.
MRA by time of flight method (TOF) with contrast medium for dural AVMs involving the cavernous sinus (dural CCFs) is necessary to assess the caliber of superior ophthalmic veins (SOVs) prior to treatment as well as immediately after treatment and during follow-up.
MRA for dural AVM at the transverse-sigmoid sinus is useful for verifying thrombosed sinus in the dural AVM prior to transvenous embolization therapy and necessary to determine the approach to the nidus of the dural AVM2.
TakamatsuKOhtaT: A case of isolated oculomotor nerve palsy due to cavernous dural arteriovenous malformation (AVM), Rinsho-Shinkeigaku34: 1008–12, 1994.
2.
MacHidaTHayashiN: Posterior cranial fossa dural arteriorvenous malformation with a varix mimicking a thrombosed aneurysm: Case report. Neuroradiology35: 210–211, 1993.
3.
HirabukiNFujitaN: Follow-up MRI in dural arteriovenous malformation involving the cavernous sinus: Emphasis on detection of venous thrombosis. Neuroradiology34: 423–427, 1992.
