Abstract

MONTILLA, Guillermo; BOSNJAK, Antonio; VILLEGAS, Hyxia  and  JARA, Iván. COMPUTER ASSISTED PLANNING OF NEUROSURGERY USING 3D VISUALIZATION AND DEPENDENT TEXTURE MAPPING . uct [online]. 2008, vol.12, n.49, pp.263-270. ISSN 1316-4821.

Direct volume rendering based on 3D-texture mapping has improved recently. However, simultaneous visualisation by different sources (multi-modality image integration) is yet limited. This work presents three options to visualise objects, issued from two or more sources that were previously registered: (1) Multimodal Volume Rendering (MVR); (2) Surface Rendering Mixed, also called Indirect Volume Rendering with Volume Rendering (VR); (3) Multimodality - Multiplanar Reconstruction - MPR, (to our knowledge, this has not been reported). The aim of this work, is to obtain objects from any modality, such as MRI or CT, and visualize a ROI under the control of a Multidimensional Transfer Function (TF) defined by one or more Fuzzy Classifiers (FC). Once a good visualization is reached, the object is segmented to create a polygonized model of the surface, and this representation can be mixed with any modality from the patient's studies. The results show that, the use of 3D navigation with a probe, multimodality-MPR, 3D texture mapping visualization, interactive TF, interactive widgets, and medical knowledge, cooperate to improve surgery pre-planning. In conclusion, our proposed multimodal visualisation technique allows and improves the simulation of surgery planning.

Keywords : Computer Assisted Surgery; 3D Visualization; 3D Texture-Mapping; Neurosurgery.