Near-real-time biplanar fluoroscopic tracking system for the video tumor fighter

Michael A. Lawson; Kevin G. Wika; George T. Gilles; Rogers C. Ritter

doi:10.1117/12.45224

1 June 1991 Near-real-time biplanar fluoroscopic tracking system for the video tumor fighter

Michael A. Lawson, Kevin G. Wika, George T. Gilles, Rogers C. Ritter

Proceedings Volume 1445, Medical Imaging V: Image Processing; (1991) https://doi.org/10.1117/12.45224
Event: Medical Imaging '91, 1991, San Jose, CA, United States

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.

Citation Download Citation

Michael A. Lawson, Kevin G. Wika, George T. Gilles, and Rogers C. Ritter "Near-real-time biplanar fluoroscopic tracking system for the video tumor fighter", Proc. SPIE 1445, Medical Imaging V: Image Processing, (1 June 1991); https://doi.org/10.1117/12.45224

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