Fig. 5

Pre- and post-interventional CMR pulmonary perfusion imaging for assessment of the treatment effect after stenting of multiple severe PV stenoses. A, B Pre-interventional three-dimensional CMR angiography revealed a total occlusion of both, the LSPV and left inferior pulmonary vein (LIPV; A, posterior–anterior view of volume rendering reconstruction) with “late-filling” of large distal pulmonary vein side branches on the second angiographic dynamic scan indicating focal ostial stenosis (B, posterior–anterior view of volume intensity projection). In addition, a ≥ 70% luminal diameter stenosis of the right superior pulmonary vein (RSPV) was present. C–E Pre-interventional CMR pulmonary perfusion imaging revealed corresponding perfusion loss of the entire left lung and hypoperfusion of the right upper lung lobe (C, still frame of original dynamic pulmonary perfusion; D still frame of dynamic pulmonary perfusion after background stationary tissue subtraction; E, pseudo-colored parametric map of quantitative CMR pulmonary perfusion analysis with time-to-peak enhancement as the quantitative measure). F–H Post-interventional CMR pulmonary perfusion imaging at day 1 demonstrated improved, but not fully restored perfusion of the left lung while a completely homogenous perfusion of all right lung lobes was seen (F, still frame of original dynamic pulmonary perfusion; G, still frame of dynamic pulmonary perfusion after background stationary tissue subtraction; H, pseudo-colored parametric map of quantitative CMR pulmonary perfusion analysis with time-to-peak enhancement as the quantitative measure; Additional file 3: video file 3)