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Radiation exposure to personnel during cardiac catheterization.

Radiation exposure to the principal personnel carrying out a complete cardiac catheterization and cine procedure has been measured in 18 examinations. Film badges were worn in the collar, under and over the protective apron and on the dominant wrist. The average exposure to the trunk area under the apron was about 2 mR. If correct protection precautions are taken, cardiac procedures would not appear to be unduly hazardous.