Combining Image-Based Solutions with COMSOL Multiphysics® Simulations

D. Harman[1]
[1]Synopsys Simpleware, United Kingdom
Published in 2019

Models generated from 3D image data (such as MRI or CT) are used in COMSOL Multiphysics® to analyse real-world problems and gain insights into biomechanical and industrial processes. We work with customers from different areas, from Life Sciences to Materials Science, to implement workflows going from 3D image data to processing and mesh generation in Synopsys Simplewaer software, and export to COMSOL®. These workflows are the focus of this talk.

An integrated workflow involving 3D image data acquisition, processing in Simpleware software, and simulation in COMSOL, solves problems where a true geometrical of representation is crucial. For example, this includes studying how patient-specific anatomies interact with medical devices. Recent work using COMSOL Multiphysics® have used the software to solve specific problems for modelling pacemakers and rare musical instruments.

MicroPort used this workflow to develop cardiac rhythm management devices (CRM) for cardiovascular disease. Image-based simulation of pacemaker geometries in the body provides insights into patient therapies for conditions such as bradycardia and tachycardia, and reduces reliance on animal testing. Simulation in COMSOL Multiphysics® focused on electrode placement and tissue conductivity when applying voltage to the body. Results were successful at determining optimal position of electrodes for therapy.

By comparison, Adelaide University employ a Simpleware-COMSOL Multiphysics®  workflow to study the Japanese koto, an ancient hand-crafted instrument. In this workflow, the koto is CT-scanned and processed in Simpleware software prior to acoustic simulation in COMSOL Multiphysics®. Again, this workflow allowed researchers to obtain valuable information on a complex object that could not be easily achieved without CT-based modelling.

The diversity of these examples shows the broader value of carrying out image-based simulations using a workflow that bridges image data acquisition, Simpleware software, and COMSOL Multiphysics® . This presentation will review the steps taken to achieve results in both case studies, as well as some of their shared benefits for solving problems using COMSOL Multiphysics® and complementary software.