This thesis addresses the problem of registration, merging and viewing medical images from multiple modalities for stereotactic surgery planning. A technique is presented, using volumetric rendering of tomographic data, to create anatomical perspective projections that can be easily merged with vascular projections. / The geometry of the digital subtraction angiogram (DSA) projection is reproduced by the rendering process to enable registration between the DSA radiograph and the volumetric projection. The viewing parameters are calculated from the location of fiducial markers in the image. Each angiogram is overlayed onto a translucent volumetric projection of computed tomography (CT) or magnetric resonance (MR) data, rendered to give a matched view. / Until recently, rendered medical volumes have been used qualitatively in the diagnostic and surgical planning process. Since the volumetric projections are matched to the DSA images, the complete set of stereotactic surgery planning tools can be used to identify points and measure distances in the rendered images. / A point spread function of the rendering process is derived to establish a theoretical limit on the accuracy of the technique and is verified by experimentation.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.59545 |
| Date | January 1989 |
| Creators | Collins, Donald Louis |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Engineering (Department of Electrical Engineering.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001071459, proquestno: AAIMM63683, Theses scanned by UMI/ProQuest. |
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