[The use of a test phantom in step-shaped forms (test steps) for the clarification of different problem situations in x-ray diagnosis. 1. The use of test steps for the estimation of image quality after modified darkroom technics].
Properly exposed radiographs and under- or overexposed ones were processed differently with regard to temperature and time. Using a step wedge for the objective estimation, the alteration of well-exposed radiographs by neglecting time and temperature control was examined. Further information is given about the possibility to improve the quality of wrongly exposed radiographs by manipulation of the processing, and about the quantity of acceptable radiographs received in this way. Stop bath, fixation bath, wash bath and drying were performed regularly. The result showed, that the only chance to get high quality radiographs is by exact and correct working.
Parisot
M
M
Institut für medizinische Physik der Veterinärmedizinischen Universität Wien.
D000818:Animals; D011786:Quality Control; D011859:Radiography / Q000592:standards / Q000662:veterinary*; D013679:Technology, Radiologic / Q000592:standards / Q000662:veterinary*; D014962:X-Ray Film / Q000592:standards / Q000662:veterinary*
Der Einsatz eines Testphantoms in treppenförmiger Gestalt (Testtreppe) zur Klärung verschiedener Problemstellungen in der Röntgendiagnostik. Teil 1: Der Einsatz der Testtreppe zur Beurteilung der Bildgüte nach modifizierter Dunkelkammertechnik.