查询词典 stenosis

During the guide wire operation, the following cares should be taken:(1) The head of guide wire needs to be bent to a certain degree and the degree of bend depends on the track of the lesion and diameter and characteristics of the vessel;(2) Insert the guide wire gently through the opening of coronary artery and ensure to deliver the guide wire into the vessel without any resistance;(3) Rotate the guide wire while delivering it across the stenosis lesion;(4) Once the guide wire is delivered to the place, no further operation should be performed before it is confirmed by angiography that the wire is in the true lumen of the vessel.

在引导钢丝的操作中应注意以下几点：(1)引导钢丝头部需弯成一定的弯度，弯度的大小应根据病变的走行、血管直径和特点来决定；(2)引导钢丝进入冠状动脉开口时，动作要轻柔，在确保推送引导钢丝无任何阻力情况下将其送入血管内；(3)引导钢丝通过狭窄病变时要边转动钢丝边推送；(4)引导钢丝到位后要造影确认其在血管真腔内，再行操作。

The severity of coronary atherosclerosis was underestimated by CAG. 38 segments were indicated for operation by IVUS. Post-stenting in 38 segments was checked with IVUS. 46 segments had good effect and 10 segments with no ideal effect needed high-pressure ballon re-expansion. This 10 segments with re-expansion were shown good effect by IVUS. Statistic analysis showed VA and LA were increased after post-stenting. PA and area stenosis rate were reduced. VA and PA had no difference , but LA and ASR had obvious difference between pre-high pressure and post-high pressure ballon re-expansion.

结果IVUS在显示血管壁的形态结构、斑块的性质方面敏感性高于CAG检查，诊断冠心病更准确，血管造影低估冠脉病变的严重程度；本组46处血管，经CAG和IVUS检查符合介入治疗干预指征的血管38处，IVUS指导置入支架的大小、长度以及置入的位置，支架置入术后，血管总截面积、管腔面积增加，斑块面积及面积狭窄率降低，并有显著性差异。

All stents covered the stenosis lesions completely, and fitted well with the blood vessel wall without rejection, showing the good biocompatibility of selected stents with the host.

所有支架完全覆盖狭窄性病变，与血管壁贴合良好，无排斥反应发生，与宿主的生物相容性良好。

The mean caries number in female is higher than male (P.05). The mean missing number of male is higher than female (P.005). Coronary artery stenosis is positive correlated to tooth missing and filling.

在龋齿的平均颗数女生较男生多(P.05)，缺牙的平均颗数男生颗数较女生多(P.005)，冠状动脉阻塞与缺牙及填补有正相关(P.05)。

Scholars have made many scientific researches to improve the properties of graft wall and the techniques of antithronibogenicity in the past years, yet the long term patency of prosthetic grafts especially small-caliber ones with the diameter less than 5 mm has not been satisfactory due to proliferative stenosis.

过去已就提高人工血管的管壁性能和抗凝技术做了大量的研究，但是由于再狭窄导致人工血管，特别是口径小于5mm的人工血管长期通畅性问题依然没有满意的结果。

These include: the pre-VAD insertion examination of the heart and largevessels to exclude significant aortic regurgitation, tricuspidregurgitation, mitral stenosis, patent foramen ovale, or othercardiac abnormality that could lead to right-to-left shunt afterleft VAD placement, intracardiac thrombi, ventricular scars,pulmonic regurgitation, pulmonary hypertension, pulmonary embolism,and atherosclerotic disease in the ascending aorta; and to assessright ventricular function; and the post-VAD insertion examinationof the device and reassessment of the heart and large vessels.

这些包括：（1） VAD 植入前心脏和大血管的检查以排除明显的主动脉反流、三尖瓣反流、二尖瓣狭窄、卵圆孔未闭或者可能引起左 VAD 植入后右向左分流的其他心脏异常，心内血栓、心室疤痕、肺动脉反流、肺动脉高压、肺栓塞和升主动脉粥样硬化疾病；并且评估右室功能；（2） VAD 植入后检查设备及再评估心脏和大血管。

Objective To explore the clinical significance of radiculography and blocking in lumbar disc herniation and spinal canal stenosis.

目的 探讨神经根造影封闭对腰椎间盘突出症和椎管狭窄症的诊疗意义。

As the general population ages, the prevalence of lumbar spinal canal stenosis increased significantly.

目的 随着世界人口的老龄化，罹患腰椎管狭窄症的患者显著增加。

Indicated by clinical follow-up of 30 months, there are no evidences of spinal instability and spinal canal stenosis.

临床随访平均2年6个月，临床效果良好，无脊柱不稳和椎管狭窄的症状、体征和影像学依据。

Objective To study and improve accurate methods of lumbar Disc Hemiation and Lumbar spinal canal stenosis .

目的 探索治疗腰椎间盘突出并腰椎管狭窄症的有效方法。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。