The project will lead students step by step from understanding the electrogram sensing problems to mathematical formulation and solution. At the beginning of the workshop, an overview of the mathematical modeling and the importance in tachyarrhythmia research of implantable cardioverter and defibrillator industries will be given. Then the background and the existing models of the sensing will be reviewed. Mathematical description of the problem will be developed and the surface integral equations will solved by numerical methods i.e. Method of Moment. Other alternative approaches such as Finite Element Analysis will also be discussed. Students are required to develop the computer code by using Matlab or other tools and to obtain the solutions to a few simple geometries of pacing/sensing leads. On the last day of the workshop, students need to give a presentation on their findings and submit a written report.