Hemodynamic assessment ofpulmonary arteryon smokerswith 3.0T phase-contrast MR imaging: initial experience
Ruyi Bao 1 , Qingwei Song 1 , Ailian Liu 1 , and Zhiyong Li 1
Radiology department, The First Affiliated
Hospital of Dalian Medical University, DaLian, LiaoNing,
Hemodynamic assessment of pulmonary artery on smokers
with 3.0T phase-contrast MR imaging: initial experience
To investigate pulmonary blood flow of main pulmonary
artery and its changes induced by smoking with
phase-contrast MR imaging (PC-MRI).Ten smokers and ten
non-smokers, underwent PC-MRI of main pulmonary artery.
Main measurement parameters included peak positive
velocity, average flow, average positive flow and
distensibility. Average flow and average positive flow
of main pulmonary artery in smokers group were
significantly lower than these and in non-smokers group.
Peak positive velocity and distensibility of main
pulmonary artery in smokers group were also lower than
these in non-smokers group, but there were no
statistical differences between them. The findings of
this study suggest that PC-MRI may reflect pulmonary
blood flow change induced by smoking, which is useful to
quantitatively evaluate and monitor pulmonary blood flow
change in smokers.
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