Resting myocardial perfusion imaging is to see whether the live myocardial cells have ingested the radiotracer by observing whether the myocardial cells are homogeneous, and then to see whether the radiotracer is homogeneously distributed, if the radiotracer is homogeneously distributed, then the image is that of a normal myocardium, and if there is a localized defect of the radiotracer, then it suggests that there is myocardial ischemia or myocardial necrosis. 1. By the results of myocardial perfusion imaging, the normal pattern is that the myocardium of the left ventricle is clearly visualized, with a uniform distribution of radioactivity, and the chambers of the heart have a sparse or no distribution of radioactivity, and the distribution of radioactivity in the apex and base of the heart may be slightly sparse. In resting myocardial imaging, the right ventricle is usually not visualized, and there is very little radioactivity in the lungs; the right ventricle may be visualized when myocardial imaging is performed after a load test. 2. If myocardial perfusion imaging is abnormal, it shows localized myocardial radioactivity is sparse or absent, with no redistribution or repopulation, which is usually myocardial scarring or myocardial infarction. Indicates ischemia or myocardial necrosis in the heart. Specific resting myocardial perfusion imaging results need to be reviewed by a cardiologist to give the results, make a definitive diagnosis, and follow the doctor’s advice on whether treatment is needed.