Pulmonary Hypertension Related to Left-Sided Cardiac Pathology
Figure 2
Pulmonary vein wedge angiography. In panel (a) balloon occlusion with hand contrast injection demonstrates opacification of the distal branches of the right upper pulmonary artery (RUPA) and in panel (b) the levophase of the wedge angiogram shows normal right upper pulmonary vein (RUPV) drainage into the left atrium (LA). Panel (c) shows normal opacification of the distal branches of the left lower pulmonary artery (LLPA) with wedge angiography. However, during the levophase in panel (d), there is abnormal drainage of the left lower pulmonary vein (LLPV) with contrast persisting in the LLPA and the absence of contrast media in the LA diagnostic of PVOD.
