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Proceedings Paper

Three-Dimensional Interactive Display of Medical Images For Stereotactic Neurosurgery Planning
Author(s): C. Henri; L. Collins; T. M. Peters; A. C. Evans; S. Marrett
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Paper Abstract

We describe a method for matching computed tomography (CT) and/or magnetic resonance (MR) medical image data with digital subtraction angiograms (DSA). The tomographic data set is processed and rendered to yield a volumetric image which is displayed stereoscopically from the same viewpoint at which the DSA images were acquired. The vessels are merged on top of the 3D rendered volumes and the composite images are viewed stereoscopically on a PC-based workstation. The workstation has facilities allowing the user to manipulate a. cursor or vector in stereo within a defined 3D coordinate system and to make accurate 3D measurements within the imaged volume. While surgical planning can be conducted from analysis of the separate tomographic images and individual bi-plane angiograms, such an approach is tedious since as many as 400 separate images from separate modalities may be acquired for a single patient. Furthermore, it is sometimes difficult to fully appreciate the anatomy of the surrounding structures from individual CT and MR slices of the 3D volume. All image processing and rendering is performed on a PIXAR Image Computer, a SIMD (single instruction, multiple data) channel array processor with a 48 - bit deep image buffer. PIXAR's Chap Volumes rendering library is employed in the rendering process. The stereoscopic workstation consists of a high performance color monitor which displays the left and right eye views of the data sequentially at 120 Hz via a liquid crystal polarizing shutter. The operator views the image via left and right eye circularly polarized glasses.

Paper Details

Date Published: 25 May 1989
PDF: 8 pages
Proc. SPIE 1092, Medical Imaging III: Image Processing, (25 May 1989); doi: 10.1117/12.953246
Show Author Affiliations
C. Henri, McGill University (Canada)
L. Collins, McGill University (Canada)
T. M. Peters, McGill University (Canada)
A. C. Evans, McGill University (Canada)
S. Marrett, McGill University (Canada)


Published in SPIE Proceedings Vol. 1092:
Medical Imaging III: Image Processing
Samuel J. Dwyer; R. Gilbert Jost; Roger H. Schneider, Editor(s)

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