[Use of regression analysis to construct mathematical models of the diameters of arteries].

By means of regressive analysis, using the cervicocerebral arteries as an example, the method to prognosticate the diameter in large arteries by measuring easily accessible external body parts was demonstrated. In 10 dogs body weight, diameter and length of the neck, height of the forelegs and diameter of the cervical arteries (in the roentgenograms) were measured. Statistically significant mathematical models on the diameter of the arteries studied were represented. The degree of influence of each of the four factors was stated for various cervical arteries. The data obtained could be explained from biological point of view.