[Analysis of stresses in the wall of the urinary tract based on urographic data]

Mathematical analysis has been performed from the position of the strength of material theory and the elasticity theory, taking into account forms of surfaces in various parts of the urinary pathways (UP). At an increased pressure in UP cavities the deformity degree of their walls is not similar and depends on expressiveness of positive or negative curvature of saddle-like surfaces. In its turn, according to changes of the curvature radii in UP contours in roentgenograms, it is possible to consider on an increased pressure in their lumen, depending on disturbances in UP conductivity.