各组间阻力指数（RI）、搏动指数（PI）无显著差异。
Resistance index(RI) and pulsatility index(PI) were not significantly different in different age groups.
目的探讨正常双胎妊娠期间胎儿大脑中动脉搏动指数的变化；
Objective (1)To study the change of fetal middle cerebral artery pulsatility index(PIMCA) in twin pregnancy;
结果与正常组比较，妊娠晚期合并羊水过少的胎儿肾动脉搏动指数明显升高。
Results The PI of fetal renal artery with oligohydramnios were significantly higher than the normal.
治疗后eeg异常率下降到15.2%，血流速度及搏动指数降低，血管杂音消失。
EEG abnormality rate was 15.2%, flow velocity and pulsatility index were reduced and the vascular murmur disappeared after treatment.
分析病变处血流的搏动指数(PI)和阻力指数(R I)与病理组织学结果的关系。
Lesion vascularity, pulsatility index (PI), and resistive index (ri) of the vessels detected were analyzed. And correlated with histologic results.
糖尿病并腔隙性脑梗死患者的动脉搏动指数明显高于无脑梗死组和对照组（P<0 .0 1）。
The arterial pulsatility index was significantly higher in patients with lacunar infarction than in those without lacunar infarction as well as in controls(P<0.01).
对搏动指数（PI）和阻力指数（RI）用于评价透析血管血流动力学方面的变化作了初步分析。
The result demonstrated the accordance of this two methods. The dynamics of blood flow in hemodialysis vascularity was evaluated by pulsatility index(PI) and resistence index(RI).
但肝硬化腹水组肾动脉阻力指数（RI）和搏动指数（PI）均显著高于其余两组（P<0.01）。
But resistive index (RI) and pulsatile index (PI) were markedly higher in cirrhotic patients with ascites than that in cirrhotic patients without ascites and that in the control group (P<0.01).
结果部分患者脑动脉有不同程度的异常改变，其中单纯性搏动指数（PI）增高者占16 .11% ；
Results A part of patients' cerebral arteries had some degrees of arteriosclerosis. The pulsitility index(PI) was only increased in 16.11% patients;
用搏动指数、阻力指数、A/B比值，结合二维实时显像对胎儿宫内生长迟缓、畸形、宫内胎儿死亡的研究。
The combination of three parameters of Doppler is pulse index (PI), resistance index (RI), A/B ratio together with.
搏动指数在主动脉、颈动脉、肱动脉、桡动脉、眼动脉及视网膜动脉两组间比较差异均无显著性（P>0.05）。
There were no changes of PI in aortic, carotid, brachial, radial, ophthalmic and central retina arteries (P>0.05).
治疗组经治疗后双侧大脑前、中、后动脉平均血流速度及搏动指数均有明显改善，与对照组比较差异有显著性(P ？ 0.05)。
Treatment group after therapy, bilateral before, during and after the brain artery blood pulsing index and average will be improved obviously, compared with the control group (p? 0. 05).
治疗组经治疗后双侧大脑前、中、后动脉平均血流速度及搏动指数均有明显改善，与对照组比较差异有显著性(P ？ 0.05)。
Treatment group after therapy, bilateral before, during and after the brain artery blood pulsing index and average will be improved obviously, compared with the control group (p? 0. 05).
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