مرکز منطقه ای اطلاع رساني علوم و فناوري - Diagnostic importance and surgical usefulness of three dimensional movie like images created by using free Osirix software in cerebral aneurysm surgery

Abstract :

Purpose: To examine the diagnostic accuracy of movie images created by using free Osirix software in a 3 dimensional virtual reality environment showing aneurysm and arterial vasculature through the surgeon’s operative vision by comparing with the real operation images and to discuss the benefits of these images to sugery.Materials and methods:Thin brain computed tomography angiography images of 10 patients with intracerebral aneurysm operated in our clinic between January 2013- December 2015 were processed by Osirix software.Three dimensional pictures in movie format of these radiological images similar with surgical view were created. These reconstructed iamges were compared according to the surgical video images in terms of arterial vasculature’s and aneurysm’ s morphologic features’ similiarity.Results: Three dimensional images of 5 anterior communicating artery aneurysm, 4 middle cerebral artery aneurysm and 1 internal carotid artery aneurysm were included in our study. The dome of aneurysm were shown in all patients radiologically. The neck of aneurysm in 2 patients, hypoplastic contralateral A1 in 2 patients, presence of blister aneurysm in 4 patients and relationship of a parent artery with aneurysm in 1 patient were not shown in these images.Conclusion: Radiological movie images created by Osirix software are showing similarities with surgical observations. These images are thought not only have diagnostic importance also provide surgeon’s familiarity to surgical procedure. Concomitant usage of this program with 3 dimensional digital subtraction angiography images will improve the accuracy of this software.