Study on High-sensitivity Troponin 0h/1h for Rapid Diagnosis of Non-ST-segment Elevation Myocardial Infarction in the Chinese Population

The purpose of the study is to establish a high-sensitivity troponin 0h/1h process for the diagnosis of patients suspected of NSTEMI for the Chinese population, obtain the inclusion and exclusion criteria for diagnosis of these patients and compare the new process with the existing diagnosing methods and processes, including the 3h and 6h processes more extensively used at present and the ECG combined with troponin diagnosis, so as to explore a confirmation model suitable for the Chinese population.