Importance of Soft Tissue Modeling Importance of Soft Tissue - PDF document

Importance of Soft Tissue Modeling Importance of Soft Tissue Modeling � Most medical procedures involve the Most medical procedures involve the � Real- -Time Soft Tissue Modeling Time Soft Tissue Modeling Real deformation (and tearing or cutting) of deformation (and tearing or cutting) of anatomical structures anatomical structures � The ability to simulate that behavior is an The ability to simulate that behavior is an Stephane Cotin Stephane Cotin � important element of the learning process important element of the learning process cotin.stephane@mgh.harvard.edu cotin.stephane@mgh.harvard.edu CIMIT Simulation Group / Harvard Medical School CIMIT Simulation Group / Harvard Medical School � Applications for more accurate soft tissue Applications for more accurate soft tissue � http://simcen.usuhs.mil/miccai2003 http://simcen.usuhs.mil/miccai2003 models are not limited to medical models are not limited to medical simulation simulation Simulation for Medical Training – MICCAI 2003 Soft Tissue Modeling: a grand Soft Tissue Modeling: a grand Soft Tissue Modeling Soft Tissue Modeling challenge for medical simulation challenge for medical simulation Biomechanical Biomechanical Mathematical Mathematical Real- Real -time time Properties Properties Modeling Modeling Modeling Modeling � Once we have a better Once we have a better � Soft tissue is very complex Soft tissue is very complex � � understanding we need understanding we need In- In -vitro vitro Constitutive Constitutive Finite Element Finite Element measurements measurements Laws Methods to design appropriate to design appropriate Laws Methods � We do not understand yet We do not understand yet � In In- -vivo vivo Continuum Continuum Spring Spring- -Mass Mass mathematical models mathematical models all the aspects of soft tissue all the aspects of soft tissue measurements measurements Models Models Models Models behavior behavior Others Others � These models need to These models need to � be optimized to provide be optimized to provide � We need tools to We need tools to � real real- -time interaction time interaction investigate tissue properties investigate tissue properties Validation, validation, validation Validation, validation, validation Simulation for Medical Training – MICCAI 2003 Simulation for Medical Training – MICCAI 2003 Soft Tissue Modeling Some references… Some references… Soft Tissue Modeling In vivo property measurement In vivo property measurement � � – – Ottensmeyer, M. “In vivo measurement of solid organ Ottensmeyer , M. “In vivo measurement of solid organ visco visco- -elastic properties”. elastic properties”. Proceedings of Proceedings of Biomechanical Mathematical Real- -time time Biomechanical Mathematical Real Medicine Meets Virtual Reality , J.D. Westwood, et al. (Eds.), Newport Beach, CA. IOS Press, , J.D. Westwood, et al. (Eds.), Newport Beach, CA. IOS Press, Medicine Meets Virtual Reality pp 328 pp 328- -333, 2002. 333, 2002. Properties Properties Modeling Modeling Modeling Modeling – – Wellman, P.S. and Howe, R.D. “Extracting features from tactile m Wellman, P.S. and Howe, R.D. “Extracting features from tactile maps”. aps”. Proceedings of Proceedings of Medical Image Computing and Computer- -Assisted Intervention (Lecture Notes in Computer Assisted Intervention (Lecture Notes in Computer Medical Image Computing and Computer Science Vol.1679), Science Vol.1679), 1999. 1999. In- -vitro vitro In Constitutive Constitutive Finite Element Finite Element – – Brouwer, I. Brouwer , I. et al et al . “Measuring In Vivo Animal Soft Tissue Properties for Haptic Mo . “Measuring In Vivo Animal Soft Tissue Properties for Haptic Modeling in deling in Surgical Simulation”, in Proceedings of Medicine Meets Virtual Reality Proceedings of Medicine Meets Virtual Reality , J.D. Westwood et al. , J.D. Westwood et al. Surgical Simulation”, in measurements measurements Laws Laws Methods Methods (Eds.), 2001. (Eds.), 2001. – – Kerdok Kerdok, A. E., and Howe, R.D. “A Technique for Measuring Mechanical Pr , A. E., and Howe, R.D. “A Technique for Measuring Mechanical Properties of operties of Perfused Solid Organs”, Solid Organs”, ASME Summer Bioengineering Conference ASME Summer Bioengineering Conference , Key Biscayne, 2003. , Key Biscayne, 2003. In- -vivo vivo Spring- -Mass Mass Perfused In Continuum Continuum Spring – – Cespedes Cespedes et al et al ., ., Elastography Elastography: elasticity imaging using ultrasound with application to muscle : elasticity imaging using ultrasound with application to muscle and breast in vivo. Ultrasonic Imaging and breast in vivo. Ultrasonic Imaging . 15(2):73 . 15(2):73- -88, 1993. 88, 1993. measurements measurements Models Models Models Models – Miller K, and Chinzei K. “Modeling of soft tissue deformation”. Journal Computer Assisted Surgery: Supplement, Proceedings of Second International Symposium on Computer Aided Surgery , 62-63, 1995. Others Others In vitro property measurement In vitro property measurement � � – – Fung Fung, Y. C. Biomechanics: Mechanical properties of living tissue. 2n , Y. C. Biomechanics: Mechanical properties of living tissue. 2nd ed. New York: d ed. New York: Springer Springer- -Verlag Verlag, 1993. , 1993. – – Duck FA. Physical Properties of Tissue, a comprehensive reference book. ISBN: 0 Duck FA. Physical Properties of Tissue, a comprehensive referenc e book. ISBN: 0- -12 12- -222800 222800- - 6 Academy Press, Harcourt Brace Jovanovich, London, 1990. 6 Academy Press, Harcourt Brace Jovanovich, London, 1990. – – Yamada H. Strength of Biological Materials. SBN: 683 Yamada H. Strength of Biological Materials. SBN: 683- -09323 09323- -1, Williams & Wilkins 1, Williams & Wilkins Validation, validation, validation Validation, validation, validation Company, Baltimore, 1970. Company, Baltimore, 1970. Simulation for Medical Training – MICCAI 2003 Simulation for Medical Training – MICCAI 2003