Advanced

AJNR - American Journal of Neuroradiology

Publication Preview: Published January 9, 2008

American Journal of Neuroradiology 2008;29:660.

This Article Full Text (PDF) All Versions of this Article: ajnr.A0893v1 29/4/660    most recent Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Mamourian, A.C. Articles by Pluta, D.J. Search for Related Content PubMed PubMed Citation Articles by Mamourian, A.C. Articles by Pluta, D.J.

American Journal of Neuroradiology
DOI 10.3174/ajnr.A0893

BRAIN

Nonhelical Acquisition CT Angiogram After Aneurysmal Clipping: In Vitro Testing Shows Diminished Artifact

A.C. Mamourian, K. Erkmen and D.J. Pluta

From the Departments of Radiology (A.C.M., D.J.P.) and Neurosurgery (K.E.), Dartmouth-Hitchcock Medical Center, Lebanon, NH.

Please address correspondence to Alexander C. Mamourian, MD, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH 03756; e-mail: alexander.mamourian{at}uphs.upenn.edu

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.