Accession Number:

ADA455112

Title:

Advanced Soft Tissue Modeling for Surgical Simulation and Telemedicine

Descriptive Note:

Final rept. 1 Jul 2001-30 Jun 2006

Corporate Author:

CHILDREN'S HOSPITAL LOS ANGELES CA

Personal Author(s):

• Vesely, Ivan

Report Date:

2006-07-01

Pagination or Media Count:

10.0

Abstract:

The objectives of this project were to develop computer based models of soft tissues that could eventually be integrated into virtual reality-based surgical simulators. To that end, we have developed a number of computer algorithms that span the scales from the microstructural to the phenomenological, and from 1-D to 3-D. For the 1-D case, we have developed a model of fractional order viscoelasticity. For the 3-D case, we have developed an invariant-based formulation of dispersed isotropy and implemented it in a model of blood vessel. Although the later employs as statistical measure of fiber dispersion, both a essentially phenomenological models. To implement tissue microstructure, we developed a micromechanical model based on the General Method of Cells. Through this model, we were able to model fiber-matrix interactions explicitly. These models are currently being validated and implemented into larger organ simulations.

Descriptors:

• *TISSUES(BIOLOGY)
• *SURGERY
• *TELEMEDICINE
• COMPUTERIZED SIMULATION
• SOFT TISSUES
• VISCOELASTICITY
• MEDICAL SERVICES

Subject Categories:

• Anatomy and Physiology
• Medicine and Medical Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE