Thermo-Viscoelastic Modelling of Brain Tissue with Application in Tumor Detection and Localization

In this study, a linear thermo-viscoelastic analysis of thebrain tissue is performed to investigate the capability ofthermography method in detection of brain tumors.Magnetic Resonance Imaging (MRI) data of a patientdiagnosed to have a brain tumor is utilized to provide athree dimensional (۳D) finite element model of brain andtumor. The model is going to simulate thermo-viscoelasticbehavior of brain with ABAQUS software. Three specificresults are extracted from the simulations, i) thetemperature distribution on the surface of the tissue,called the thermal image, ii) The temperature graph,which is taken on the path defined on the upper surfaceof the brain, called the thermal graph and iii) Thetemperature map, which is a surface curve fit for brainsurface temperature to facilitate and improve thesurgeon in detection of tumor. An abnormality intemperature distribution may indicate capability ofthermography technique in detection and localization ofbrain tumors.

کلیدواژه ها:

Brain tissue ، Thermo-viscoelastic model ، Tumor detection ، Finite element simulation