We use the finite element method (FEM) to model and analyze the resistance between the catherer tip electrode and the dispersive electrode during radio-frequency cardiac catherer ablation for the prediction of myocardium-electrode contact. We included deformation of the myocardial surface to achieve accurate modeling. For perpendicular catherer contact, we measured the side view of the myocardial deformation using X-ray projection imaging. We average the deformation contour from nine samples, and then incorporated the contour information into our FEM model. We measured the resistivity of the bovine myocardium using the four-electrode method, and then calculated the resistance change as the catherer penetrated into the myocardium. The FEM result of resistance versus catherer penetration depth matches well with our experimental data.