MCG for Risk Stratifications of Patients With Chest Pain

Inclusion Criteria: * Those with suspected ACS who presented with symptoms of acute chest pain. * Signed informed consent. Exclusion Criteria: * Those with known structural heart disease such as cardiomyopathy and valvular disease; * Those with atrial fibrillation, supraventricular tachycardia, atrioventricular block and other arrhythmias that have not returned to normal; * Those who have chest pain with known pulmonary embolism or aortic coarctation; * Those who are thought to be incapable of completing the MCG examination by an attending physician (or physician with higher qualifications) due to unstable clinical conditions, metal implants, etc; * Those who are unable to perform magnetocardiography examinations due to claustrophobia, etc., or those who fail to receive magnetocardiography examination; * Those with malignant tumors; * Pregnant or lactating women. * Those with acute or critical illnesses of other systems, such as acute or severe respiratory illnesses, marked abnormalities in liver function or kidney function.