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Proceedings Paper

Automated selection of anterior and posterior commissures based on a deformable atlas and its evaluation based on manual selections by neurosurgeons
Author(s): Srivatsan Pallavaram; Hong Yu; Pierre-Francois D'Haese; John Spooner; Tatsuki Koyama; Bobby Bodenheimer; Chris Kao; Peter E Konrad; Benoit M. Dawant
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Paper Abstract

We are developing and evaluating a system that will facilitate the placement of deep brain stimulators (DBS) used to treat movement disorders including Parkinson's disease and essential tremor. Although our system does not rely on the common reference system used for functional neurosurgical procedures, which is based on the anterior and posterior commissure points (AC and PC), automatic and accurate localization of these points is necessary to communicate the positions of our targets. In this paper, we present an automated method for AC and PC selection that uses non-rigidly deformable atlases. To evaluate the accuracy of our multi-atlas based method, we compare it against the manual selection of the AC and PC points by 43 neurosurgeons (38 attendings and 5 residents) and show that its accuracy is submillimetric compared to the median of their selections. We also analyze the effect of AC-PC localization inaccuracy on the localization of common DBS targets.

Paper Details

Date Published: 21 March 2007
PDF: 9 pages
Proc. SPIE 6509, Medical Imaging 2007: Visualization and Image-Guided Procedures, 65091C (21 March 2007); doi: 10.1117/12.709936
Show Author Affiliations
Srivatsan Pallavaram, Vanderbilt Univ. (United States)
Hong Yu, Vanderbilt Univ. Medical Ctr. (United States)
Pierre-Francois D'Haese, Vanderbilt Univ. (United States)
John Spooner, Vanderbilt Univ. Medical Ctr. (United States)
Tatsuki Koyama, Vanderbilt Univ. (United States)
Bobby Bodenheimer, Vanderbilt Univ. (United States)
Chris Kao, Vanderbilt Univ. Medical Ctr. (United States)
Peter E Konrad, Vanderbilt Univ. Medical Ctr. (United States)
Benoit M. Dawant, Vanderbilt Univ. (United States)

Published in SPIE Proceedings Vol. 6509:
Medical Imaging 2007: Visualization and Image-Guided Procedures
Kevin R. Cleary; Michael I. Miga, Editor(s)

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