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Multi-parameter sensitivity analysis for guided needle insertion through soft tissue

Maghsoudi, A ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1109/IECBES.2010.5742207
  3. Publisher: 2010
  4. Abstract:
  5. Soft tissue needle insertion characterization has been a focus of many medical and biomedical recent studies. In this study the constrained prostate soft tissue deformation through a finite element model is evaluated. The study considers a sensitivity analysis of the target reaching error with respect to the mechanical, insertion and anatomical parameters in presence of the kinematics constraint on the tissue. The needle insertion into the soft tissue is simulated using the proposed Finite Element Method (FEM). Based on acquired results, the insertion of needle induces a considerable rotation of the prostate tissue due to its specific kinematics and support structure. Such rotation can increase the sensitivity of the error to mechanical properties of the tissue especially to the Poisson ratio. It is shown that even minor changes in Poisson ratio (4%) leads to large target reaching errors (9 fold)
  6. Keywords:
  7. Anatomical constraints ; Soft tissue mechanical properties ; Anatomical constraint ; Finite element models ; Multi-parameter sensitivity analysis ; Needle insertion ; Prostate tissue ; Soft tissue ; Soft tissue deformation ; Support structures ; Target reaching ; Biomedical engineering ; Finite element method ; Kinematics ; Mechanical properties ; Needles ; Poisson ratio ; Rotation ; Sensitivity analysis ; Tissue ; Biomechanics
  8. Source: Proceedings of 2010 IEEE EMBS Conference on Biomedical Engineering and Sciences, IECBES 2010, 30 November 2010 through 2 December 2010, Kuala Lumpur ; 2010 , Pages 97-100 ; 9781424476008 (ISBN)
  9. URL: http://ieeexplore.ieee.org/document/5742207