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Proceedings Paper

Near-real-time biplanar fluoroscopic tracking system for the video tumor fighter
Author(s): Michael A. Lawson; Kevin G. Wika; George T. Gilles; Rogers C. Ritter
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Paper Abstract

We have developed software capable of the three-dimensional tracking of objects in the brain volume, and the subsequent overlaying of an image of the object onto previously obtained MR or CT scans. This software has been developed for use with the Magnetic Stereotaxis System (MSS), also called the 'Video Tumor Fighter' (VTF). The software was written for a Sun 4/110 SPARC workstation with an ANDROX ICS-400 image processing card installed to manage this task. At present, the system uses input from two orthogonally-oriented, visible- light cameras and a simulated scene to determine the three-dimensional position of the object of interest. The coordinates are then transformed into MR or CT coordinates and an image of the object is displayed in the appropriate intersecting MR slice on a computer screen. This paper describes the tracking algorithm and discusses how it was implemented in software. The system's hardware is also described. The limitations of the present system are discussed and plans for incorporating bi-planar, x-ray fluoroscopy are presented.

Paper Details

Date Published: 1 June 1991
PDF: 11 pages
Proc. SPIE 1445, Medical Imaging V: Image Processing, (1 June 1991); doi: 10.1117/12.45224
Show Author Affiliations
Michael A. Lawson, Univ. of Virginia (United States)
Kevin G. Wika, Univ. of Virginia (United States)
George T. Gilles, Univ. of Virginia (United States)
Rogers C. Ritter, Univ. of Virginia (United States)

Published in SPIE Proceedings Vol. 1445:
Medical Imaging V: Image Processing
Murray H. Loew, Editor(s)

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