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Three‐Dimensional Digital Subtraction Angiography in Evaluation of Vertebro‐Basilar Artery Dissections: Comparison with 2D DSA
Author(s) -
Sorimachi Takatoshi,
Suzuki Kenji,
Sasaki Osamu,
Koike Tetsuo,
Fujii Yukihiko
Publication year - 2010
Publication title -
journal of neuroimaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 64
eISSN - 1552-6569
pISSN - 1051-2284
DOI - 10.1111/j.1552-6569.2009.00445.x
Subject(s) - medicine , digital subtraction angiography , radiology , basilar artery , stenosis , dissection (medical) , angiography , subtraction , mathematics , arithmetic
BACKGROUND AND PURPOSE The purpose of this study was to clarify characteristic findings on three‐dimensional (3D) digital subtraction angiography (DSA), and to investigate diagnostic usefulness of 3D DSA in vertebro‐basilar dissections (VBD).METHODS In 25 consecutive patients with VBD, two‐dimensional (2D) DSA, and 3D DSA findings were evaluated by a scoring system. The effects of 3D DSA results on diagnosis were scored in comparison with 2D DSA results.RESULTS A proximal stenosis, a distal stenosis, a bleb, and a relationship between the posterior inferior cerebellar artery and the dissection were significantly better visualized in 3D DSA than those in 2D DSA ( P < .05). A characteristic finding of VBD on 3D DSA was a combination of an aneurysmal bulging and its proximal and distal stenoses, which was observed in 92% of the 25 patients.CONCLUSIONS Three‐dimensional DSA was more useful for diagnosis in patients with VBD in comparison with 2D DSA.