经食管超声心动图对窦性心律时右心耳血流频谱的研究

目的　应用经食管超声心动图技术 (TEE)观察窦性心律时右心耳结构、功能和血流频谱的特点。方法　选取 2 6例窦性心律患者 ,常规超声资料的留取后 ,采用经食管超声心动图技术 ,清楚显示右心耳图像并采集血流频谱。结果　窦性心律时右心耳血流频谱形态可分为 4相、 3相和 2相波 ,在获取的 2 6例图像中 ,右心耳血流频谱为 4相波者有 6例(2 3% ) ,为 3相波者有 12例 (4 6 % ) ,为 2相波者有 8例 (31% )。结论　窦性心律时右心耳血流频谱是反映右心房和右心耳功能的良好指标

Study on Right Atrial Appendage Doppler Flow In Sinus Rhythm Using Transesophageal Echocardiography

Objective To determine the function and Doppler flow of right atiral appendage (RAA) in sinus rhythm using transesophageal echocardiography (TEE) .Methods Twenty six patients with sinus rhythm were included in this study.All patients underwent transthoracic and transesophageal echocardiography.The Doppler flow of right atrial appendage was taped and analysed.Results RAA flow pattern was demonstrated to be bi-,tri- or quadriphasic and heart rate dependent in this study.Eight subjects (30%) with a biphasic pattern,12 subjects (46%) with a triphasic pattern and six subjects (24%) with a quadriphasic pattern were observed.Conclusions Transesophageal echocardiography is a safe and sensitive technique for assessing RAA function by measuring RAA blood flow velocities which might be a good index for evaluating the function of RA and RAA.