目的：采用相位对比法磁共振成像(MRI)测量肺动脉血流量，探讨并评价两肺的血流灌注情况。
AIM: to measure the flow volume of pulmonary arteries by using phase contrast magnetic resonance imaging (MRI) and to investigate the values of phase contrast MRI in assessing pulmonary perfusion.
目的探讨相位对比法MR I (PC - MR I)测量肺动脉血流的准确性以及临床应用价值。
Objective To investigate the accuracy and applied value of measurement of pulmonary flow velocity with phase-contrast MRI (PC-MRI).
目的观察窒息新生儿心脏解剖及主、肺动脉血流参数的变化，探讨窒息对心脏收缩功能影响的特点及其意义。
Objective To observe changes of aortic and pulmonary flow parameters after neonatal asphyxia and explore its relationship with clinical manifestation and prognosis.
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