Figure 2
From: Myocardial segment-specific model generation for simulating the electrical action of the heart
Sample of tissue sections from tissue block EX07. Upper left: Base-apex plane (X2-X3) section showing the orientation of myolaminae throughout the ventricular wall. Upper right: Circumferential plane (X1-X3) sections taken at three X2 locations through the wall. Lower left: Epicardial (X1-X2) plane sections taken at five X3 locations, revealing the gradual change in myofibre orientation from epicardium to endocardium. Lower right: Inset from the upper-left base-apex section showing zoomed-in section of tissue with overlayed structural angles automatically determined by the gradient-intensity algorithm.