A multimodality image fusion and localisation system for radiosurgery treatments of arteriovenous malformations (AVM) has been developed and validated. Within this system, three-dimensional magnetic resonance angiography (MRA) and two-dimensional digital subtraction angiography (DSA) vasculature information is combined with three-dimensional magnetic resonance (MR) and/or computed tomography (CT) anatomical information in order to benefit from the functionality of all modalities. MRA/MR/CT datasets are fused, and linked to the DSA images. The consistency of the linking procedure is verified by correlation of the DSA images with two-dimensional ray-traced projections of the MRA datasets. Organ contours are drawn on the MRA images, simultaneously visualised on their MR/CT counterparts, and projected onto the DSA images for visual feedback. This procedure allows users to incorporate both vascular and anatomical information in the three-dimensional target localisation and delineation process. Patient examples illustrating the utility of the system are presented.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.33379 |
| Date | January 2000 |
| Creators | Bercier, Yanic. |
| Contributors | Hristov, Dimitre (advisor) |
| 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 Science (Department of Medical Radiation Physics.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001771615, proquestno: MQ70688, Theses scanned by UMI/ProQuest. |
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