笔者对325例风心病在房内径的大小进行了超声心动图观察,分析于下: (一)方法:采用日本AIOKA SSD—720型二维超声心动图仪,超声频率3MHz,扫描角度80度。患者于安静状态下取平卧或左侧卧位进行超声心动图检查,控头一般置于胸骨左缘第三或四肋间,取左室长轴切面,以主动脉根部定标线,显示相应M型波群,心电图与超声心动图同步描记,测量收缩末期(相当于心电图上T波末)主动脉根部后壁下缘与左房后壁前缘之间的最大垂直距离,即为左房内径,数值由仪器自动显示。一、观察对象:全部病例来自本院1984年6月～1985年12月门诊及住院病人,经临床和超声 The author of 325 cases of rheumatic heart disease in the room diameter size echocardiography, analysis of the following: (a) Methods: Japan AIOKA SSD-720 two-dimensional echocardiography, ultrasonic frequency 3MHz, scanning angle of 80 degrees. Patients in a quiet state to take supine or left lateral decubitus echocardiography, the control head is generally placed in the third or fourth intercostal left sternal border, take the long axis of the left ventricular section to the aortic root scaling line, showing Corresponding M-wave group, ECG and echocardiography simultaneously tracing, measuring the end of the contraction (equivalent to T-wave end of the ECG) the aortic root posterior wall and the posterior wall of the posterior wall of the vertical distance between the left is the left Room diameter, the value automatically displayed by the instrument. First, the observation object: All cases from our hospital from June 1984 to December 1985 outpatient and inpatient, clinical and ultrasound