title: Factors affecting radiation exposure and radiographic image contrast in urology.
abstract: An evaluation of certain radiographic factors affecting patient exposure during urography is made. Factors considered include selection of tube kilovoltage, total beam filtration and film-screen combination. The effect on image quality is also considered. Experimental results suggest specific actions which would result in decreased patient exposure without compromising quality of the examination.
mesh_terms: D006801:Humans; D008961:Models, Structural; D011786:Quality Control; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000379:methods; D014567:Urography / Q000379:methods; D014962:X-Ray Film; D014963:X-Ray Intensifying Screens