Advanced

AJNR - American Journal of Neuroradiology

This Article Abstract Full Text Full Text (PDF) 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 HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Karmonik, C. Articles by Strother, C. M. Search for Related Content PubMed PubMed Citation Articles by Karmonik, C. Articles by Strother, C. M.

A Technique for Improved Quantitative Characterization of Intracranial Aneurysms

Christof Karmonik^a, Anil Arat^b, Goetz Benndorf^a, Sergin Akpek^a, Richard Klucznik^b, Michel E. Mawad^a,b and Charles M. Strother^a,b

^a Department of Radiology, Baylor College of Medicine, Houston, TX
^b Department of Radiology, the Methodist Hospital, Houston, TX

View larger version (67K): [in a new window]   FIG 1. Case 1. Top, 2D DSA image (anteroposterior projection) and 3D DSA surface reconstruction from a right ICA angiogram showing a large paraopthalmic aneurysm. Middle, Results produced by the algorithm for selected cross-sections perpendicular to the axis of the parent artery shows the reconstructed vessel (green), neck angle (purple), and dome height (yellow, from green to top). Boundary points used to calculate the vessel parameters are red. Bottom, 3D surface rendering of the reconstructed artery (green) and ostium surface area (red) superimposed on the original 3D DSA data (gray). In top and bottom images, left is the lateral view; right, view from top.

View larger version (74K): [in a new window]   FIG 2. Case 2. Top, 2D DSA image (lateral projection) and 3D DSA surface reconstruction from a right ICA angiogram showing a small supraclinoid ICA aneurysm. Middle, Results produced by the algorithm for selected cross-sections perpendicular to the axis of the parent artery shows the reconstructed vessel (green), neck angle (purple), and dome height (yellow, from green to top). Boundary points used to calculate the vessel parameters are red. The reconstructed vessel exceeds the boundary of the parent artery in cross-section 4 (arrow). Bottom, 3D surface rendering of the reconstructed artery (green) and ostium surface area (red) superimposed on the original 3D DSA data (gray) reveals the increase of the radius of the reconstructed artery along the aneurysm ostium (arrows). In top and bottom images, left is the lateral view; right, view from top.