According to clinical data, the average accuracy of PET-CT examinations is about 90%. PET-CT can detect subtle lesions in human cells, thus alerting people to early intervention for the purpose of preventing serious diseases. It is important to note that PET-CT is not 90% accurate for all diseases, as it uses metabolic principles to detect abnormal lesions in the body, so some specific metabolic areas may not be as accurate. The accuracy of PET-CT for each disease process is determined by the patient’s disease.