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  • Title: [Usefulness of dynamic MRA and CTA in diagnosis and postoperative evaluation in spinal dural arteriovenous fistula: a case report].
    Author: Ito O, Ido K, Ishido K, Hitotsumatsu T.
    Journal: No Shinkei Geka; 2012 Feb; 40(2):173-80. PubMed ID: 22281471.
    Abstract:
    Here we report a case of spinal dural arteriovenous fistula that was diagnosed on MRA and CTA, and then treated by endovascular embolization. A 56-year-old male presented with slowly progressive intermittent claudication and numbness of the lower extremities. T2-weighted MR imaging showed the swelling of the spinal cord with an intramedullary high signal intensity area and dilated vessels with signal flow void at the dorsal aspect of spinal cord. Dynamic MRA demonstrated the feeding artery, shunt point and the overview of dilated veins as seen with a CTA. Endovascular embolization using liquid material was performed under local anesthesia. The injection of glue included the distal feeding artery, the shunt itself and the initial part of the draining vein. A complete cure was achieved. CTA after embolization demonstrated the glue cast and the disappearance of the AV shunt and dilated veins that were visible before embolization. It was suggested that dynamic MRA and CTA are useful for the final diagnosis and postoperative evaluation of spinal dural arteriovenous fistulas.
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