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AJNR - American Journal of Neuroradiology

Published ahead of print on September 24, 2007
doi: 10.3174/ajnr.A0652

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3D Rotational Digital Subtraction Angiography May Underestimate Intracranial Aneurysms: Findings from Two Basilar Aneurysms

L.-D. Jou^a, A. Mohamed^b, D.H. Lee^a,c and M.E. Mawad^a

^a Department of Radiology, Baylor College of Medicine, Houston, Tex
^b Siemens Medical Solutions, Princeton, NJ
^c Asan Medical Center, Seoul, South Korea

View larger version (31K): [in this window] [in a new window]   Figure 1. Top row shows the front (left) and lateral views (middle) of 3D DSA and a rendering image (right). Bottom row shows the front (left) and lateral views (middle) of DynaCT images and overlap of basilar tip aneurysm models from DSA and DynaCT images (right). Aneurysm from 3D DSA is in red and aneurysm from DynaCT is in light gray. A large portion of aneurysm from DynaCT is missing in 3D DSA. 3D DSA indicates 3D digital subtraction angiography.

View larger version (25K): [in this window] [in a new window]   Figure 2. Top row shows the front (left) and lateral views (middle) of 3D DSA and a rendering image (right). Bottom row shows the front (left) and lateral views (middle) of DynaCT images and overlap of basilar trunk aneurysm models from DSA and DynaCT images (right). Aneurysm from 3D DSA is in red, and aneurysm from DynaCT is in light gray. A portion of aneurysm in DynaCT is missing in 3D DSA. 3D DSA indicates 3D digital subtraction angiography.