[en] A working post has been realised at the C.H.U of Montpellier in order to evaluate the radiations doses received by the manipulators. For 9 examinations by day, if the same person made the preparations the daily dose would be 12 micro sievert that is to say 2.7 milli sievert by year, 13% of the annual maximum limit, if the same manipulator would realize the totality of examinations the radiation dose would be 36 micro sievert by day that is to say 8.5 milli sievert by year, that is to say 42% of the annual maximum limit. (N.C.)

[en] Three articles have for purpose the radiation doses optimization in medical imaging. The first one concerns the radiation protection of manipulators working at a PET scan post, the second one concerns more particularly the optimization of doses delivered in pediatric computerized tomography, the third one is devoted to a comparison between radiation dose and image quality through scanners of adult temporal bone. (N.C.)