急性穿壁性下壁心肌梗塞(简称ATIMI)早期心前导联ST段压低较为常见,以往认为是对应面改变,故临床上对此未引起足够重视。近年来,随着选择性冠脉造影、放射性核素的应用以及尸检等方面的研究,认为其有多枝冠脉病变,伴有更广泛的心肌损害,并发症多,预后差。为了判断ATIMI早期心前导联ST段压低的临 Acute transmural inferior wall myocardial infarction (referred to as ATIMI) early ST segment depression is more common in the past that in the past is the corresponding surface change, so this has not been clinically enough attention. In recent years, with the selective coronary angiography, the application of radionuclides and autopsy and other aspects of the study, that there are many branches of coronary lesions, with more extensive myocardial damage, complications, poor prognosis. In order to determine the early ATIMI ST-segment depression lead