RT Journal Article
SR Electronic
T1 3D Rotational Digital Subtraction Angiography May Underestimate Intracranial Aneurysms: Findings from Two Basilar Aneurysms
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1690
OP 1692
DO 10.3174/ajnr.A0652
VO 28
IS 9
A1 Jou, L.-D.
A1 Mohamed, A.
A1 Lee, D.H.
A1 Mawad, M.E.
YR 2007
UL http://www.ajnr.org/content/28/9/1690.abstract
AB SUMMARY: 3D digital subtraction angiography (DSA) allows clinicians to review intracranial aneurysms and other vascular lesions. We report 2 basilar aneurysms that were imaged by both 3D DSA and DynaCT. These 2 techniques produced very different aneurysm appearances. Anterior portions of the aneurysms were invisible on 3D DSA but were revealed by DynaCT. These aneurysms appeared to have been flattened by image artifacts in 3D DSA. Pulsation and gravity are 2 possible causes of aneurysm underestimation.