Keywords: آنژیوگرافی نخاعی; Spinal arteriovenous fistula; Spinal dural arteriovenous fistula; Spinal vascular malformation; Spinal vascular disorder; Myelopathy; Spinal angiography; FÃstula arteriovenosa espinal; FÃstula arteriovenosa dural espinal; Malformación vascular espinal;