An abdominal CT scan requires fasting for 4-8 hours prior to the procedure, with water intake and timing varying depending on the scan location.

Discussing the Differences Between High-Density Shadows in the Lungs and Increased Density Shadows and Possible Causes

Discuss the health risks and radiation exposure issues associated with baby X-ray imaging.

This study aims to determine the normal CT value range of brain tissue in newborns of different gestational ages, to avoid misdiagnosis of normal brain tissue low density in premature infants as hydrocephalus or hypoxic-ischemic encephalopathy. The study results show that with increasing gestational age, the CT value of brain tissue gradually increases, and newborns of different gestational ages should have different normal value ranges.

Deciphering the meaning of long T1 and T2 signal shadows in pediatric MRI scans, as well as the assessment of postoperative lesions.