Keywords:
Interventional vascular, Neuroradiology brain, Catheter arteriography, Embolisation, Arteriovenous malformations
Authors:
H. Kiyosue1, S. Tanoue1, J. Kashiwagi2, H. Mori2; 1YUFU/JP, 2Oita/JP
DOI:
10.1594/ecr2013/C-2570
Purpose
Intracranial dural arteriovenous fistulas (DAVFs) can cause various symptoms from tinnitus to fatal cerebral hemorrhage (1).
Aggressive symptoms are related to the drainage pattern of the DAVFs,
and the DAVFs with cortical venous drainage should be aggressively treated (2).
A majority of cases with symptomatic and/or high risk DAVFs has been treated by endovascular techniques,
including transarterial embolization and/or transvenous embolization (1).
Precious evaluation of angioarchitecture including feeding arteries,
shunted pouches,
and draining vein of DAVFs by angiography is essential for successful result.
However,
it would be difficult to demonstrate these angioarchitectures in details on 2D-DSA in some cases due to overlapping of vessels.
Recent developments in three-dimensional angiography technology allow us to evaluate the angioarchitecture of DAVFs more easily and precisely (3) (4).
Furthermore,
according to recent advances in 3D workstations,
several types of fusion images between the different imaging datasets have been widely used (5) (6).
In this study,
we evaluate clinical utility of a novel imaging technique that fuses 3D subtracted and non-subtracted rotational angiography for pretherapeutic evaluation of angioarchitectures of intracranial DAVFs.