Uncategorized Posterior Descending Artery (PDA) off the Distal RCA Normal axial CT of the right coronary artery showing the PDA in the inferior interventricular septum AshleyDavidoffMD Posterior Descending Artery (PDA) off the Distal RCANormal axial CT of the right coronary artery showing the PDA in the inferior interventricular septumIn addition the inferior septal artery (red arrow) is noted as well as the distal LAD (pink arrow) that coils around the apex.Ashley Davidoff MD 3D CT – Acute Marginal Artery, Posterior Descending (PDA) and Posterior LV branches off the RCAAshley Davidoff MD ey Davidoff MD