Royal mummy of Amenhotep I, the second pharaoh of the 18th dynasty, at Cairo Museum, Egypt.

A diagnostic tool used in hospitals has given researchers an inside look at one of ancient Egypt’s best-preserved royal mummies. The 3500-year-old mummified remains of Amenhotep I were digitally unwrapped using computed tomography, better known as a CT scan.

Preserved in time

Amenhotep I ruled Egypt from about 1525 to 1504 BC. His 21-year reign was mostly peaceful.

According to hieroglyphics on the coffin, priests had rewrapped Amenhotep three centuries after his death to repair damage made by graverobbers. They did a superb job.