Pathological pregnancy had no effect on the echo of lung, and diabetes had no effect on the flow indexes of intrapulmonary artery, either.

• 妊娠病理对胎肺回声无影响， 妊娠糖尿病对肺内动脉血液动力学指标无影响， 妊高征和羊水过多使肺内动脉搏动指数增大。