The use of appropriate parameters to identify deterioration in cardiac function is crucial for monitoring patients with Pulmonary Arterial Hypertension. In this regard, imaging tests and new parameters have increasingly demonstrated added value when combined with traditional tools. This review highlights the central role of the RV in PAH pathophysiology and progression. We present and discuss various noninvasive imaging methods for RV assessment, focusing on summarizing recent studies that support the use of noninvasive measures to evaluate RV-PA coupling and right systolic function.