Figure 2From: Evaluation of left ventricular outflow tract obstruction with 4D phase contrast in patients with hypertrophic cardiomyopathyBoxplots of A) resting gradient and B) peak provoked gradient along LVOT vs. 4D PC qualitative assessment of LVOT obstruction show significant different in resting and peak provoked pressure gradients between non-obstructive and obstructive groups.Back to article page