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RT Journal Article
SR Electronic
T1 Nonhelical Acquisition CT Angiogram after Aneurysmal Clipping: In Vitro Testing Shows Diminished Artifact
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 660
OP 662
DO 10.3174/ajnr.A0893
VO 29
IS 4
A1 Mamourian, A.C.
A1 Erkmen, K.
A1 Pluta, D.J.
YR 2008
UL http://www.ajnr.org/content/29/4/660.abstract
AB SUMMARY: Imaging of the cerebral vessels with use of CT angiogram (CTA) after placement of aneurysmal clips is often limited by clip artifacts. We used a phantom to demonstrate a visible reduction in metal artifact when using the axial technique, compared with the usual CTA helical acquisition. This approach may have some advantage when used for CTA with 64-section scanners in the specific circumstance of immediate postoperative imaging after placement of cerebral aneurysmal clips.