Geometric Deformation of Three-Dimensional Prostate Model With Applications to Computerized Training of Cryosurgery

As a part of an ongoing effort to develop computerized training tools for cryosurgery, this study presents a computational technique to geometrically deform a three-dimensional organ template in order to generate clinically relevant prostate models. Cryosurgery is the destruction of undesired tissues by freezing, where prostate cryosurgery often involves the complete destruction of the gland. The objective of creating deformed models is to develop a database for computerized training [1]. The challenges in generating a prostate model from a template are associated with asymmetry of the organ, and the variability in growth patterns exhibited in the population of prostate cancer patients.