One criticism of the coronary CT scan has been the radiation exposure associated with the test.

FORBES: Coronary CT Scans May Save You (And Your Hospital)

There is no specific test for exposure and no antidote once exposed.

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Ayers's father, BBC producer Rowan Ayers, created the BBC Two music programme The Old Grey Whistle Test, which gave a host of underground acts TV exposure while it aired between 1971 - 1987.

BBC: The Soft Machine