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Computerized Planning of Multi-Probe Cryosurgical Treatment for Tumor With Complex Geometry

[+] Author Affiliations
Zhong-Shan Deng, Jing Liu

Chinese Academy of Sciences, Beijing, China

Paper No. IMECE2007-43921, pp. 97-101; 5 pages
  • ASME 2007 International Mechanical Engineering Congress and Exposition
  • Volume 2: Biomedical and Biotechnology Engineering
  • Seattle, Washington, USA, November 11–15, 2007
  • Conference Sponsors: ASME
  • ISBN: 0-7918-4296-7 | eISBN: 0-7918-3812-9
  • Copyright © 2007 by ASME


To perform a cryosurgical procedure successfully, it is important to carefully design the optimal freezing parameters (such as the number of cryoprobes, the locations, the insertion paths and depths of cryoprobes) before cryosurgery. Failure to do so accurately could lead to either insufficient or excessive freezing. Due to the irregularly shaped tumors commonly encountered in clinics, multiple cryoprobes are often needed, which makes the parameter optimization rather difficult. Computerized planning tools would help to alleviate this difficulty. In this study, a three-dimensional cryosurgery planning tool is developed, based on the numerical algorithm presented in our recent works. This tool is developed with general purpose and applicable for the treatment planning of tumor with complex geometry. For demonstration purposes, several examples for typical cryosurgery cases using multiple cryoprobes are given and interpreted.

Copyright © 2007 by ASME
Topics: Geometry , Probes , Tumors



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