A prospective and observational clinical study of measuring the range of cardiac magnetic parameters in healthy people with the magnetocardiogram manufactured by Hangzhou Nuochi Life Science Co., LTD

This study is a prospective and observational study on the collection of cardiac magnetic signals from healthy subjects by magnetocardiogram. It is expected that 412 subjects will be examined by magnetocardiography, and the range of parameters related to magnetocardiography in healthy subjects will be reported.

Inclusion Criteria:

1. Healthy people aged 18-70 years old;
2. Subjects receiving physical examination in physical examination institutions, or in other departments other than heart disease (such as orthopedics, gynecology, etc.), or in cardiology department, excluded from coronary heart disease;
3. No history of coronary heart disease;
4. ECG did not indicate myocardial ischemia or infarction;
5. Sinus rhythm without arrhythmia;
6. The subject or the subject's legal representative has been informed of the nature of the study, understands the purpose of the clinical study, voluntarily participates in the study and signs the informed consent.

Exclusion Criteria:

1. Acute coronary syndrome requires emergency PCI treatment, and it is estimated that magnetic cardiogram examination will affect the timing of emergency PCI surgery;
2. Subjects with metal implants in the thoracic cavity (including the heart cavity), such as those who have received pacemaker therapy or cardiac resynchronization therapy (CRT, CRT-D) or implantable cardioverter defibrillator (ICD) implantation, or those who have received metal heart valve implantation;
3. There is hemodynamic instability, which is defined as systolic blood pressure < 80mmHg, or cardiogenic shock; Or need vasoactive drug therapy; Intra-aortic balloon counterpulsation may be required; Or other hemodynamic support devices; As syndrome;
4. Severe tachycardia (ventricular rate > 150 beats/min), ventricular flutter, ventricular fibrillation and other malignant arrhythmias;
5. Subjects unable to lie flat (supine position);
6. Subjects with mental illness, unconscious or uncontrollable ability; Or claustrophobic subjects;
7. Other circumstances in which the investigator considers the subject inappropriate for participation in the study