[Effect of various cytologic preparation techniques on form, texture and densitometric nuclear parameters of normal and dysplastic bladder urothelial cells].

An important prerequisite for densitometric and morphometric measurements on cytological specimens is the standardized cell preparation. Optimal results can only be achieved when the analyses are carried out on a regular monolayer of cell nuclei. Comparing the conventional cytological smear with a new centrifugation technique we demonstrate statistically significant differences of the two methods in texture, size and parameters describing the DNA content of normal and dysplastic urothelial cells.