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Fig. 3A. —Visibility and delineation of pulmonary structures at various
doses of contrast media. Light gray bars = 0.025 mmol/kg of gadoterate
meglumine, dark gray bars = 0.05 mmol/kg of gadoterate meglumine, black bars =
0.1 mmol/kg of gadoterate meglumine, and white bars = 0.2 mmol/kg of
gadoterate meglumine. Graph shows that image-quality score for right and left
pulmonary arteries (r/l PA) was 4 or better, regardless of dose. Lobar (Lobar
PA) and segmental arteries (Segm PA) were scored below 4 with 0.025 and 0.05
mmol/kg of gadoterate meglumine; significantly better score was achieved with
0.1 of mmol/kg. Dose increase to 0.2 of mmol/kg of gadoterate meglumine did
not further improve score. Subsegmental arteries (Subsegm PA) were scored
below 2 at all tested doses (p < 0.5).
