Figure 1From: Estimation of cardiac output and pulmonary vascular resistance by contrast echocardiography transit time measurement: a prospective pilot study Representative apical 4-chamber view images demonstrating (A) left ventricle and right ventricle prior to contrast injection, (B) full opacification by Definity contrast of the right ventricle, (C) first appearance of contrast in the left ventricle, and (D) full opacification of the left ventricle. Back to article page