求翻译：本课题采用多层螺旋CT 冠状动脉造影(Multi slice spiral CT coronary angiography MSSCTCA)、心电图(electrocardiography ECG)与经胸超声心动图(transthoracic echocardiography TTE)[]等无创伤性检查对CHD进行诊断，并对照CAG结果，以便提高诊断符合率，及时、有效、正确诊断CHD，对积极治疗及改善预后，降低患者死亡率有非常重要的意义。是什么意思？

This paper uses multi-slice CT coronary angiography (Multi slice spiral CT coronary angiography MSSCTCA), ECG (electrocardiography ECG) and transthoracic echocardiography (transthoracic echocardiography TTE) [] and other non-invasive examination of CHD diagnosis, and control

The issue is multi-layered spiral CT Coronary arteriography (Multi slice spiral CT coronary angiography MSSCTCA), ECG (electrocardiography ECG), and the Chest echocardiography (transthoracic echocardiography TTE) the, non-traumatic, check that the CHD diagnosis and CAG results in order to improve th

This topic uses multi-layered screw CT coronary artery radiography( Multi slice spiral CT coronary angiography MSSCTCA), electrocardiogram( electrocardiography ECG) with and so on does not have the wound( inspection after chest)() echocardiogram transthoracic echocardiography TTE to carry on the dia

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