Article Figures & Data
Figures
- Fig 1.
Right vertebral artery DSA. Giant perimedullar AVF of the arteriovenous type (confluence of all arterial pedicles toward a single vein). The venous collector (black arrow) communicates with a giant perimedullar venous pouch.
- Fig 2.
Percutaneous puncture of the venous pouch through the right C3–C4 neural foramen.
- Fig 3.
Cervical AP view of the draining vein through the microcatheter. We injected contrast material to corroborate the correct position of the microcatether, observing the beginning of the draining vein (arrow) and the venous pouch (arrowhead).
- Fig 4.
Postembolization DSA of the right vertebral artery shows complete disappearance of the AVM and patency of the radiculomedullary branches.
- Fig 5.
Selective DSA of the right T9 Intercostal artery shows a dilated anterior radiculomedullary artery that participates in the shunt through a network of pial branches that drain into a venous collector (white arrow) and a venous pouch.
- Fig 6.
Puncture of the venous pouch through the T12-L1 interspinal space. Injection of contrast material opacifying the vein.
- Fig 7.
Postembolization DSA of the anterior spinal artery showing disappearance of the shunt at the lumbar level.
- Fig 8.
A, Cervical embolization with coils and cyanoacrylate. Coils are positioned at the beginning of the draining vein (black arrow), and the glue is injected into the venous pouch (white arrow). B, Lumbar AP view of the embolization material in the venous side of the shunt. Coils are identified in the primary collecting vein (black arrow), and in the rest of the vein and the venous pouch is Onyx 18.
