Kato Y, Sano H, Katada K, Ogura Y, Kanaoka N, Yokoyama T, Kanno T
Department of Neurosurgery, Fujita Health University, Aichi, Japan.
Title
Clinical usefulness of 3-D CT endoscopic imaging of
cerebral aneurysms.
Source
Neurol Res 1996 Apr;18(2):98-102
Abstract
Usefulness of endoscopic imaging of cerebral aneurysms is presented. 3-D
luminal images were obtained using a new processing technique which extracts CT
numbers in the boundary region between the vessel wall and contrast media filled
in the vascular lumen. Clinical application of this technique to complicated large
cerebral aneurysms showed that, with this 3-D CT endoscopic imaging,
anatomical details of cerebral aneurysms such as the orifice of the aneurysm,
intraluminal thrombus, and calcification of the wall could be clearly demonstrated.
Using a 3-D imaging method by Helical CT virtual views of various surgical
approaches were compared preoperatively. With this technique, not only virtual
surgical views of aneurysms and related vasculature, but also surgical views after
virtual resection of skull base bone to a desirable extent are freely available. We
operated on two large, complicated aneurysms and one broad-based aneurysm
after obtaining 3-D CT endoscopic images of the aneurysms. Such information
was found to be very useful for determining difficult and complicated cerebral
aneurysms and broad-based aneurysms for coil embolization or direct open
surgery.