The autopsy is the first such procedure performed in the UK since 1975.
Although Dr Millar was not able to find an exact cause of death, he did discover that the woman died around the age of 27.
'She was a priestess and so led a privileged life and probably had a better quality of life than most Egyptians,' he told Healthcare Republic.
‘Show me the mummy: the face of Takabuti', will be shown on BBC One Northern Ireland at 9pm on Monday 19 October. It is expected to be shown around the UK later this year.
