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Fig. 3A —Time–attenuation curves in control group and subgroups.
Aorta = 
, pulmonary artery = 
. Control curves show typical
pulmonary artery enhancement pattern with early rising and subsequent plateau.
Time–attenuation parameters, including maximal slope of pulmonary
enhancement (MSPA), time to maximal slope of pulmonary enhancement (tMSPA),
area between curves of pulmonary artery and aorta (ABC), and mean ratio of
pulmonary artery and aortic enhancement (PA/AO), are illustrated.
