经食管心房起搏彩色多普勒负荷超声在冠心病诊断中的价值  

Transesophageal Atrlal Pacing Color Doppler Stress Echocardiography for Detecting Coronary Artery Disease

作　　者：段小民[1] 李明亮[1] 王庆莲[1] 底炜[1] 杨军[1] 傅西汉[1] 李峰[1] 高保林[1] 胡继新[1] 

机构地区：[1]陕西省汉中市人民医院,陕西汉中723000

出　　处：《实用放射学杂志》2001年第10期772-774,共3页Journal of Practical Radiology

摘　　要：目的　通过食管心房起搏负荷试验 ,使用彩色多普勒超声心动图对左室室壁运动状态及左室舒缩功能改变进行评价 ,以提高冠心病诊断的敏感性和特异性。方法　 49例冠心病患者和 34例正常对照组使用心脏程序刺激仪经食管起搏导管调整心率达次极量 ,同时使用彩色多普勒超声心动仪进行左室室壁运动记分 (WMS)并记录二尖瓣口及主动脉瓣环部血流频谱。结果　经食管心房起搏负荷后彩色多普勒检查 ,左室每搏量 (SV) ,主动脉瓣环部流速积分 (VTIAO) ,等容舒张时间 (IVRT) ,二尖瓣口流速积分(VTIMV) ,快速充盈分数 (RFI)及室壁运动记分对冠心病诊断敏感性和特异性均有提高 ,WMS结合上述两项阳性指标其冠心病诊断的敏感性可达 95 % ,特异性为 97%。结论　经食管心房起搏彩色多普勒负荷超声心动图 (TPDE)在冠心病诊断中有较高的应用价值 ,因其简便、实用和安全 。Objective To evaluate the sensitivity and specificity colour doppler echocardiogrpahy and transesophageal atrial pacing in assassing coronary artery disease(CAD).Methods The heart rate was adjusted by pacing in 49 cases of coronary artery disease patients and 34 cases normal contrast group,then Doppler echocardiograph was performed and four cross sections and two valve blood flow spectrum were recorded by VCRs.Results The sensitity and specifiicity of TPDE for detecting CAD were increased by masuring SV.VTI AO .IVRT.VTI MV RFI and WMS WMS combined with two parameters had high sensitivity(95%) and specificity(97%).Conclusion Transesophageal atrial pacing colour Doppler echocardiography(TPDE)has the high practic value in detecting CAD and can be safely used for a wide range.

关 键 词：食管心房起搏 负荷试验 冠心病 彩超 

分 类 号：R541.4[医药卫生—心血管疾病]