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Atrial (thick gray) and ventricular (thick black) septal shift volumes in left heart failure. A positive value denotes shift from left to right, meaning that both the atrial and ventricular septum are shifted slightly to the right during this simulation of systolic left heart failure indicating higher left-sided pressures during the entire cardiac cycle. Less septal shift is seen in normal physiology indicated by atrial (thin gray line) and ventricular (thin black line).
