Respiratory motion causes either over-dose to the tumor or under-dose to the organ at risk in radiation therapy treatment for cancer. In order to characterize the motion, a nonlinear finite element model of the lungs has been developed based on 4D computed tomography (CT) data of a cancer patient with a tumor in the right lung. Pressure-volume (PV) curve data was applied to deform the model in real time. Realistic results are obtained when contact conditions are imposed between the pleura and the thoracic cavity.
- Bioengineering Division
Development of a Patient-Specific Nonlinear Finite Element Model for the Simulation of Lung Motion During Cancer Radiation Therapy
Eom, J, Shi, C, Xu, G, & De, S. "Development of a Patient-Specific Nonlinear Finite Element Model for the Simulation of Lung Motion During Cancer Radiation Therapy." Proceedings of the ASME 2009 Summer Bioengineering Conference. ASME 2009 Summer Bioengineering Conference, Parts A and B. Lake Tahoe, California, USA. June 17–21, 2009. pp. 1227-1228. ASME. https://doi.org/10.1115/SBC2009-206169
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