查询词典 stenosis

Objective: To review the pathological characteristics of the lungs in mitral stenosis with pulmonary hypertension, and provide evidence for clinical treatment.

目的：观察风湿性心脏病二尖瓣狭窄肺动脉高压患者肺病理改变特点，为临床处理提供理论依据。

Application of pulsed Doppler echocardiography in mitral stenosis.——Ⅰ.

脉冲多普勒超声心动图在二尖瓣狭窄中的应用——Ⅰ。

Objective To evaluate the long-term effect of mitral valve stenosis treated by percutaneous balloon mitral valvuloplasty.

目的 观察经皮二尖瓣球囊扩张术治疗风湿性心脏病二尖瓣狭窄的中、远期疗效。

Assessment of mitral stenosis using flow velocity parameters

血流速度参数对二尖瓣狭窄的估价

Objective To detect the alteration of left ventricular long-axis systolic and diastolic function in patients with rheumatic mitral stenosis and investigate its clinical significance.

目的 检测风湿性二尖瓣狭窄患者左心室长轴的收缩和舒张功能，观察二尖瓣置换术后左心室长轴收缩和舒张功能的变化，进一步探讨其临床意义。

Seven mitral flow velocity parameters were evaluated for establishing the diagnosis and grading the severity of mitral stenosis.

国外学者已经对二尖瓣狭窄的多普勒血流速度曲线的形态进行了研究。

AIM: To evaluate the relation of myocardial pathologic changes to myocardial motion in patients with rheumatic mitral stenosis.

目的：探讨风湿性二尖瓣狭窄（Mitral stenosis， MS）患者心肌病理改变与心肌运动的关系。

Methods 680 cases of rheumatic mitral valve stenosis were treated by PBMV with Inoue single balloon.

采用Inoue单球囊对680例风心病二尖瓣狭窄者行PBMV术治疗，其中394例进行了随访。

We chose 15 cases of valvular heart disease mitral stenosis with pulmonary hypertension undergoing mitral valvular replacement.

选择15例风心病合并肺动脉高压行择期瓣膜置换术的患者，在体外循环前、后吸入40 ppm nO气体。

Objective To study the clinic character, perioperative treatment and surgical results with mitral stenosis combine pulmonary hypertension.

目的 研究风湿性二尖瓣狭窄合并肺动脉高压患者临床特点、围手术期处理及手术疗效。

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。