Enhanced CT appears to have a delayed period, mainly to determine the nature of the tumor more clearly. Enhanced CT scans are usually done with a delay, which mainly means that the CT imaging is not done immediately after the contrast agent is administered, but is done at an interval of about 10 to 30 minutes. A delayed enhanced CT scan can more accurately identify neoplastic diseases, and can be used clinically for the diagnosis of hemangiomas and liver tumors, which can more accurately determine the nature of the tumor, the extent of the lesion, and the size of the lesion in question, as well as to understand the relationship between the surrounding structures and the blood supply by delaying the enhanced CT scan. If the liver or hemangioma is found to be at risk of lesions through enhanced CT scan, it needs to be reviewed regularly and treated according to the final diagnosis, but the specific treatment plan should strictly follow the doctor’s guidance.