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Issue No. 06 - November/December (2010 vol. 16)
ISSN: 1077-2626
pp: 1405-1412
Nan Zhang , University of Minnesota
Xiangmin Zhou , University of Minnesota
Yunhe Shen , University of Minnesota
Robert Sweet , University of Minnesota
In this paper, we introduce a novel application of volume modeling techniques on laser Benign Prostatic Hyperplasia (BPH) therapy simulation. The core technique in our system is an algorithm for simulating the tissue vaporization process by laser heating. Different from classical volume CSG operations, our technique takes experimental data as the guidance to determine the vaporization amount so that only a specified amount of tissue is vaporized in each time. Our algorithm uses a predictor-corrector strategy. First, we apply the classical CSG algorithm on a tetrahedral grid based distance field to estimate the vaporized tissue amount. Then, a volume-correction phase is applied on the distance field. To improve the performance, we further propose optimization approaches for efficient implementation.
Volume modeling, volume CSG, controlled-volume vaporization, medical simulation, laser BPH simulator

Y. Shen, X. Zhou, R. Sweet and N. Zhang, "Volumetric Modeling in Laser BPH Therapy Simulation," in IEEE Transactions on Visualization & Computer Graphics, vol. 16, no. , pp. 1405-1412, 2010.
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