[Tomography in excretory urography (author's transl)]. / Tomographie bei intravenöser Urographie

Urographic diagnosis has been significantly improved by the routine addition of tomography. This simple, effortless and time saving technique has resulted in the salvage of urographic studies that would otherwise have been considered indeterminate. Repeated-examinations are avoided. Tomography has also demonstrated lesions where conventional urograms have been considered normal. Finally renal lesions already demonstrable by conventional urography, can be better interpreted and analyzed.

[Theoretical considerations for improving oral cholegraphy (author's transl)]. / Verbesserung der oralen Cholegraphie, theoretische Grundlagen

Oral cholegraphy is one of the most accurate procedures in diagnostic radiology. Nevertheless it is not without shortcomings. To achieve an enhancement of its reliability the biochemical and physiological processes involved in an ultimately sufficient biliary-tract opacification are analysed. From these theoretical considerations some conclusions are drawn which could be important for the improvement of oral cholegraphy and which appeared to be worth testing in practice.