Urolith Evaluator

No Radiographs Available 
(Choose this link if you only have signalment information (breed, age, gender))

Standard Radiographs Available 
(Choose this link if you have a survey radiograph that includes uroliths. You will be required to enter information regarding the density of the urolith.)

Double-Contrast Cystogram Study Available 
(Choose this link if you have radiographs that include a double-contrast cystogram available. You will be required to enter information on the density, size, internal architecture and external shape of the urolith.)

The Study

All the Canine uroliths submitted to the Minnesota Urolith Center from January 1991 through January 1992 (13 months) were retrospectively evaluated if they were of 100% mineral composition (N = 2041).

Based on this study of 2041 uroliths from 90 breeds of dogs, it is now possible to evaluate the chemistry of a stone based on select information. The radiographic information is based on over 350 uroliths from a different time / date study (N = 437). Many (all but 181) were not from the 2041 sample of the regional urolith population identified above.

The data originated from a study in partial fulfillment of the requirements for the degree of Doctor of Philosophy by Ralph Charles Weichselbaum, DVM. Most of the information has been published; we will cite the appropriate publication whenever possible.

The specific publication related to the prediction algorithms is: Weichselbaum RC, Feeney DA, Jessen CR, et. al.: An Integrated Epidemiologic and Radiographic Algorithm for Canine Urocystolith Mineral Type Prediction. (Accepted for publication in Vet Radiol Ultrasound, 12/00)