NDLI: Semi-automated soft-tissue acquisition and modeling for surgical simulation

Content Provider	IEEE Xplore Digital Library
Author	Zhan Gao Kim, T. James, D.L. Desai, J.P.
Copyright Year	2009
Description	Author affiliation: Robotics, Automation, Manipulation, and Sensing (RAMS) Laboratory University of Maryland, College Park, USA (Zhan Gao; Desai, J.P.) \|\| Department of Computer Science, Cornell University, Ithaca, NY, USA (Kim, T.; James, D.L.)
Abstract	Realistic surgical simulation should take into account the mechanical properties of soft tissue, and also patientspecific variations. Consequently automated methods are required for the acquisition and modeling of patient-specific tissue properties.We take a step toward this goal by presenting a semiautomated method for acquiring, modeling, and simulating soft-tissue deformation. During a typical surgical procedure, organs are subject to tension, compression, and shear, so these three deformation modes must be represented in any soft tissue model. We measure these modes by performing ex vivo tests on porcine liver tissue and use the results to estimate material constants of a previously proposed combined logarithmic Ogden model. This model is capable of representing the non-linear stress-strain relations observed in the tissue, but these same nonlinearities also introduce simulation challenges. In particular, eigenvalue degeneracies complicate automatic code generation, and element inversion can produce poorly conditioned matrices. We describe a method for avoiding these degeneracies, and present an automatic method of tuning the parameters of an existing element inversion scheme. Finally, computer animations of surgical simulation reveal a qualitative improvement in the non-linear behavior of soft tissues when compared to simulations using traditional material models.
Starting Page	268
Ending Page	273
File Size	836770
Page Count	6
File Format	PDF
ISBN	9781424445783
DOI	10.1109/COASE.2009.5234158
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-22
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surgery Deformable models Biological tissues Computational modeling Biological materials Computer simulation Mechanical factors Performance evaluation Materials testing Liver
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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