论文部分内容阅读
传统用于评价右心室功能的超声心动图技术主要包括:二维测量及M型超声心动图、彩色多普勒及频谱多普勒技术。如胸骨旁长轴观M型测量右心室流出道内径和右心室壁厚度,在心尖四腔观测量右心室上下径和左右径,容积,用偏心指数评估右心室压力负荷过重的程度,用Tei指数综合评价右心室的收缩舒张功能,频谱多普勒法根据三尖瓣或肺动脉反流估测右心室和肺动脉压力,根据流出道血流速度积分估测右心室压力、搏出量和射血分数。
Conventional echocardiographic techniques for evaluating right ventricular function include two-dimensional measurements and M-mode echocardiography, color Doppler and spectral Doppler techniques. Such as the parasternal long axis view of M-type right ventricular outflow tract diameter and right ventricular wall thickness in the apical four-chamber view of the right ventricular diameter and left and right diameter, volume, with eccentric index to assess the degree of right ventricular pressure overload, with Tei index comprehensive evaluation of the right ventricular systolic and diastolic function, spectral Doppler method based on tricuspid regurgitation or pulmonary artery to assess right ventricular and pulmonary arterial pressure, based on outflow tract velocity integral estimated right ventricular pressure stroke volume and stroke Blood score.