There’s little question that CT scans  are on the rise, especially in the emergency department.
A recent paper from Radiology put a number to the increased frequency of the test, concluding,
CT, a radiology tool that once took nine days to finish, was used 16.2 million times in 2007 to diagnose headaches, stomach aches, back pain, chest pain and the like. That was a huge increase from 1995 when it was used 2.7 million times.
To anyone working in the medical profession, it’s hardly a surprise.