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Research Abstracts Online
January 2009 - March 2010

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University of Minnesota Twin Cities
Institute of Technology
Department of Computer Science and Engineering

PI: Ravi Janardan
Co-PI: Manoj Monga

Computational Modeling and Simulation in Endoscopic Urological Surgery

The goal of this project is to develop computer-based methods for planning and simulating surgical procedures on the human kidney, specifically the removal of kidney stones and tumors using minimally invasive (endoscopic) techniques. The researchers are generating virtual three-dimensional geometric models of patient-specific kidney anatomy from computed tomography scans and using resources at the SDVL for model creation. They have developed models, which are in so-called STL format, to create physical prototypes of the collecting system of the kidney and have been using this in a wet-lab setting to do procedural simulations with a small-caliber endoscope called a ureteroscope. They have also written an efficient algorithm to convert the STL model to a more information-rich format, called DCEL, that is amenable to efficient algorithm manipulation. The researchers have also investigated methods for modeling the ureteroscope and have computed appropriate strategies for stone/tumor removal.

Group Members

Yokesh Kumar, Graduate Student
Vijay Rajagopal, Graduate Student