A combined statistical and biomechanical model for estimation of intra-operative prostate deformation

Ashraf Mohamed, Christos Davatzikos, Russell Taylor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An approach for estimating the deformation of the prostate caused by transrectal ultrasound (TRUS) probe insertion is presented. This work is particularly useful during brachytherapy procedures, in which planning for radioactive seed insertion is performed on preoperative scans, and significant deformation of the prostate can occur during the procedure. The approach makes use of a patient specific biomechanical model to run simulations for TRUS probe insertion, extract the main modes of the deformation of the prostate, and use this information to establish a deformable registration between 2 orthogonal cross-sectional ultrasound images and the preoperative prostate. In the work presented here, the approach is tested on an anatomy-realistic biomechanical phantom for the prostate and results are reported for 5 test simulations. More than 73% of maximum deformation of the prostate was recovered, with the estimation error mostly attributed to the relatively small number of biomechanical simulations used for training.

Original languageEnglish (US)
Title of host publicationMedical Image Computing and Computer-Assisted Intervention - 5th International Conference, MICCAI 2002, Proceedings
EditorsTakeyoshi Dohi, Ron Kikinis
PublisherSpringer Verlag
Pages452-460
Number of pages9
ISBN (Print)3540442251
DOIs
StatePublished - Jan 1 2002
Event5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002 - Tokyo, Japan
Duration: Sep 25 2002Sep 28 2002

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume2489
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002
CountryJapan
CityTokyo
Period9/25/029/28/02

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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    Mohamed, A., Davatzikos, C., & Taylor, R. (2002). A combined statistical and biomechanical model for estimation of intra-operative prostate deformation. In T. Dohi, & R. Kikinis (Eds.), Medical Image Computing and Computer-Assisted Intervention - 5th International Conference, MICCAI 2002, Proceedings (pp. 452-460). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 2489). Springer Verlag. https://doi.org/10.1007/3-540-45787-9_57