Table 1.

Weight-dependent values for left ventricular internal diameter in systole above which dogs were considered to have met the inclusion criterion. LVIDS, left ventricular internal diameter in systole. (Adapted for use in this study from unpublished observations on 51 normal Doberman Pinschers. The study conducted by one of the authors [MOG] assessed the relationship between left ventricular dimension and body weight resulting in the equation; predicted LVIDS equals 0.1402 × BW + 26.7 mm.)

Body Weight (kg) up to:	LVIDS ≥ (mm)
25	38.8
30	39.5
35	40.2
40	40.9
45	41.6
50	42.3