Radiation exposure to patients during radiological examinations of the gastro-intestinal tract: intrahospital dose variations

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Abstract
Skin and gonad doses were measured in 144 adult patients undergoing Ba meal and BA enema examinations at a University Teaching Hospital. Intrahospital variations are discussed and their implications for national dose surveys considered. Due to differences in leakage and scattered radiation levels, overcouch tube machines may deliver higher doses to organs outside the useful beam than undercouch units. The study also points towards increased film consumption in GIT studies. Genetic risks and risks due to bone marrow exposure during radiological gastrointestinal examinations are discussed.