[Differences of X-ray exposure between roentgen examen with a conventional roentgen-screen-system and with an image intensifer-television-unit (author's transl)]

During roentgen examens of patients in the II. Medizinische Poliklinik the X-ray exposure was determined. It corresponded to the datas described in literature. Two groupes were compared: 518 patients examined with a conventional roentgen-screen-system and 642 patients examined with an image-intensifer-television-system. The results demonstrated that with exception of thoracical X-ray examination the replacing of the old system by the television system brought a remarkable increase of the X-ray exposure. The doses depended of the patients constitution to a high degree.