Pulmonic regurgitation M-mode echocardiography

M-mode echocardiography
Right ventricular enlargement is often present with a right ventricular volume overload pattern. Fine diastolic fluttering of the tricuspid valve may be observed. Premature opening of the pulmonic valve (defined as pulmonic valve opening on or before the QRS complex) may be observed as result of severe acute pulmonic regurgitation.