（4）经胸多普勒超声心动图（Transthoracic Doppler-echocardiography，TTE）：经胸多普勒超声心电图是一项很好的无创筛查方法。
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Conclusions: Transthoracic Doppler echocardiography can detect major epicardial coronary artery branches.
结论:用经胸多普勒超声心动图可探测心外膜冠状动脉主要分支。
参考来源 - 经胸多普勒超声心动图评价冠状动脉狭窄·2,447,543篇论文数据，部分数据来源于NoteExpress
目的评价经胸多普勒超声心动图技术（TTDE）检测冠状动脉左前降支近、中段高度狭窄的准确性。
Objective To evaluate the accuracy of detecting high degree stenosis of proximal or mid-left anterior descending coronary artery(LAD) by transthoracic Doppler echocardiography(TTDE).
目的：探讨经胸及经食道彩色多普勒超声心动图在诊断主动脉窦瘤破裂的应用价值。
Objective: To study the application value of transthoracic or trans-esophagus color Doppler echocardiography on diagnosing rupture of aortic sinus aneurysm.
目的应用经胸脉冲多普勒超声心动图(PDE)测定高血压病人的冠脉血流储备功能(CFR)。
Purpose To determine coronary flow reserve (CFR) in patients with essential hypertension by transthoracic pulsed Doppler echocardiography (PDE).
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