Fig. 22From: Clinically integrated multi-organ point-of-care ultrasound for undifferentiated respiratory difficulty, chest pain, or shock: a critical analytic reviewD-shaped left ventricle. The interventricular septum is normally round and bulges into the right ventricle (RV) throughout the cardiac cycle. Increased RV pressure causes the septum to be deformed to assume a “D”-shaped left ventricle (arrow)Back to article page