血流

Result: The mean velocity and pulsatility index was lower in patients with severe carotid artery stenosis in MCA than those in normal group.

43例CT血管造影证实为颈内动脉重度狭窄或闭塞的患者，用TCD对颅内血流动力学改变进行评价。

Diabetic group, blood flow velocity in patients with reduced vascular resistance, pulsatility index increased, with the control group had significant difference.

糖尿病组患者血流速度降低、血管阻力、搏动指数增高，与对照组有明显差异。

Results The cerebral blood flow velocities ,the pulsatility index and the resistance index in the middle...

结果 大脑中动脉脑血流参数显著高于大脑前动脉及基底动脉。

Mean velocity, pulsatility index, resistant index and the rate of stenosis of main medium-large cerebral arteries were obtained.

对52例经选择性冠状动脉造影确诊的老年冠心病患者作TCD检查，观察主要大中型脑动脉的平均血流速度、搏动指数、阻力指数和狭窄情况，并与30例健康老年人对比分析。

Pulse Doppler was performed in the DCLNs to measure resistive index and pulsative index.

颈深淋巴结用脉冲多普勒测量淋巴结内的血流阻力(阻力指数RI和搏动指数PI)。

The waveforms of blood flow and pressure in time domain were translated into powers spectral of input impedance in frequency domain for pulsative index,resistance and charecteristic impedance of umbilical artery.

用快速傅里叶转换的方法把血压和血流波形的时域信号转换为输入阻抗的频域图谱，计算脐动脉阻力、阻抗和搏动指数。

The pulsative index and resistance index of the ovarian and uterine arteries blood flow and endometrial pattern and thickness were measured by transvaginal color Doppler imaging on the day ofHCG administration.

国内这方面的报导尚非常少见。我们于2002年11月至2003年11月对来院行常规IVF-ET助孕术的174例不孕患者，于治疗周期的第8天开始应用TV-CDS测定卵巢动脉和子宫动脉的血流图，以监测卵泡发育及子宫内膜发育。

Methods 50 patients with diabetes and contrast group were observed, with transcrianial color Doppler flow imaging, cerebral blood stream velocity; pulsative index,resistive index and S/D were calculated of middle cerebral artery, anterior cerebral artery and posterior cerebral artery Results (1)Changes of cerebral blood stream velocity were non-specifitical in blood waves of TCDFI, but VE was reduced.

结果 (1)TCDFI频谱中，血流速度的变化，Vmax是非特异性的，而VE是明显下降的。

Pulsatory blood flow signals within the tumor were observed in HCC 82(91.1%)and "basket"pattern was found in 65(72.2%).

原发性肝癌组中82个病灶可见搏动性血流信号(91.1%)，其中65个为&篮网&状(72.2%)。

AIM : To evaluate the influence of pumpless arteriovenous extracorporeal membrane oxygenation on the haemodynamics in dogs.

目的： 探讨无泵驱动体外膜肺氧合转流对犬血流动力学的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。