Figure 1
A representative volume rendered 3D MR image to visualize the conduction paths and anatomical features in an isolated heart. A red line and a green arrow in a red box indicate where sectioning occurred and viewer was located to perform the volume rendering. Note that free-running Purkinje fibers in the left ventricular cavities, a left bundle branch (yellow arrows) in ventricular inner wall, a right bundle branch (cyan arrow) and right bundle (right, yellow circle). LV: left ventricular cavity, RV: right ventricular cavity, leaflets of the mitral valve, FW: free wall, P: papillary muscle, I: ventricular interseptum.