Fig. 4
From: The investigation and diagnosis of pulmonary hypertension in adults with congenital heart disease
a Transthoracic echocardiography (4 chamber view) illustrating a large ventricular septal defect (VSD, arrow) and right ventricular hypertrophy. b Parasternal long axis view illustrating the large VSD (arrow). c A short axis view showing low-velocity bidirectional shunting, characteristic of Eisenmenger syndrome