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2D Thick-Section MR Digital Subtraction Angiography for the Assessment of Dural Arteriovenous Fistulas

N. Horiea, M. Morikawaa, N. Kitigawaa, K. Tsutsumia, M. Kaminogoa and I. Nagataa

a Department of Neurosurgery and Radiology, Nagasaki University School of Medicine, Nagasaki, Japan


Figure 1
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  		Fig 1. A 68-year-old woman with left cavenous sinus dural AVF.

A-C, Preoperative IADSAs (A and B) show a cavenous sinus dural AVF with early filling in the bilateral inferior petrosal sinus (IPS; arrowheads) and the dilated superior ophthalmic vein (SOV; arrow). C, Preoperative MRDSA (axial) shows early venous filling in the cavenous sinus (arrowhead), IPS (double arrowheads), and reflux into the sphenoparietal sinus (arrows) and SOV (double arrows).

D-F, After TVE, IADSAs (D and E) show a small residual shunt (arrowhead) in the cavenous sinus. F, Postoperative MRDSA is unable to detect this shunt.


Figure 2
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  		Fig 2. A 69-year-old woman with a left sigmoid sinus dural AVF presenting with intracranial hemorrhaging.

A and B, Preoperative IADSAs show a sigmoid sinus dural AVF with aggressive leptomeningeal drainage (arrowheads). The main feeding artery is shown to be the occipital artery (arrow). C, Preoperative MRDSA (sagittal) shows early venous filling with a pseudophlebitic pattern (venous congestion; arrowheads). The main feeding artery is shown to be the occipital artery (arrow).

D and E, After TVE, IADSAs show the disappearance of the dural AVF. F, Postoperative MRDSA is unable to detect this shunt.


Figure 3
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  		Fig 3. A 69-year-old man with left tentorial sinus dural AVF presenting with an intracranial hemorrhage.

A-C, Preoperative IADSAs (A and B) show a tentorial sinus dural AVF with varices (arrowheads). The main feeding artery is shown to be the tentrial artery (arrow). C, Preoperative MRDSA (axial) shows early venous filling (arrowhead) with varices (double arrowhead). The main feeding artery is shown to be the tentorial artery (arrow).

D-F, After TVE, IADSAs (D and E) show the disappearance of the dural AVF. F, Postoperative MRDSA shows no abnormal pattern.





Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X