阻滞

Quantitative tissue velocity imaging ; Left bundle branch block ; Asynchrony

定量组织速度成像；左束支传导阻滞；非同步性

Methods 20 patients with complete left bundle branch block and 20 normal subjects were studied.

方法对20例完全性左束支传导阻滞患者和20例正常人解剖M型在心室波群区观察室间隔与左室后壁运动；运用频谱多普勒成像技术测量左、右心室射血前期时间（LVPET、RVPET），计算两者之差PETd；采用定量组织速度成像技术测量右室侧壁基底段和左室各壁基底段达收缩期峰值速度时限和达舒张早期峰值速度的时限。

Powerful predictors of a positive test are an ejection fraction le than 40%, bundle branch block, or atrial fibrillation.

对射血分数小于40%及束支传导阻滞或房性纤颤的阳性检查效果最好。

Despite of the intricate modification in the surgical management of the perimembranous ventricular septal defect, the postoperative prevalence of the complete right bundle branch block had remained high with values ranging from 20 to 62%.

尽管膜周室间隔缺损的手术方法已经过各色各样的改动，但术后完全性右束支传导阻滞的发生率仍高达20%～ 62%。

ECG data of healthy people and three kinds of heart disease patients (premature ventricular contraction, bundle branch block and supraventricular) which are analyzed in this thesis are derived from MIT-BIH ECG database.

本文采用MIT-BIH心电数据库中的健康人和室性失常病人、束支传导阻滞病人、室上病变病人等3种类型心脏病人的数据作为样本进行分析。

VT and PVC originating from RVOT had the typical ECG characteristic which showed left bundle branch block with an inferior axis.

RVOT起源的VT和PVC具有典型的心电图特征，表现为典型的左束支传导阻滞型伴电轴右偏。

But embryo got through 2-cell block after H2O2 treatment occurred compensatory growth in later development, there were no differences with the embryo cell number and the cleavage index compared with normal developmental embryo.

但是经H_2O_2处理之后渡过2-细胞期阻滞的胚胎能在以后的发育中发生补偿性生长，其胚细胞数和分裂指数都和体外正常发育的胚胎没有差异。

The patients had received conservative and surgical therapiesin the past including oral antidepressants, membrane stabilizers,opioids, occipital nerve blocks, and radiofrequency ablations.

这些病人过去接受过保守和手术治疗，包括口服抗抑郁药，膜稳定剂，阿片类药物，枕部神经阻滞和射频消融术。

The aesthesia efficiency of 0.75% ropivacaine is litter than 0.5% ropiacaine,but stronger than 0.5% bupivacaine. Three have the good safety.

结论0.75%罗哌卡因用于蛛网膜下腔阻滞剖宫产时，其麻醉效能弱于0.5%布比卡因，而强于0.5%罗哌卡因，三者均具有较好的安全性。

There are the drugs, like antacids, H2 Blockers, or PPI's and several other remedies.

还有的药品，如酸、氢气阻滞剂，或者生产者价格指数和其他几个补救。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。