Japanese Journal of Radiological Technology
Online ISSN : 1881-4883
Print ISSN : 0369-4305
ISSN-L : 0369-4305
EXPOSURES TO PATIENT IN WHOLE BODY COMPUTED TOMOGRAPHY
KOUJI INATOMIKATSUSHI MORIKIKOUICHI EJIRIHIRONOBU MURANAKAHIROKO NIINOMITSUO YAMASAKIHARUO FUKUDA
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1979 Volume 35 Issue 1 Pages 18-23

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Abstract

The absorbed dose distribution for patients undergoing CT whole body scanning with EMI computed tomographic equipment (5005) was measured using thermoluminescence dosimeter. The maximum and the minimum dose in the beam path during CT brain and CT abdomen (level of L2) scanning decreased by more than 30% with using a beans bag. The absorbed doses due to scattered and leakage radiation were measured at various critical organs. A conventional radiation protector reduced these doses by 20 to 30%. The maximum absorbed dose of 10 rads during CT brain scanning was comparable to that of 30 rads in angiographic examination and was higher than of 6 rads in tomography examination of brain.

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© 1979 Japanese Society of Radiological Technology
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