Early Diagnosis of Right Ventricular Systolic Dysfunction by Tissue Doppler‐Derived Isovolumic Myocardial Acceleration in Patients with Chronic Obstructive Pulmonary Disease

Abstract

TDI-derived RV IVA is a novel, noninvasive echocardiographic index which may be used in the assessment of subclinical RV dysfunction in patients with COPD.