Impact of body weight and sex in selected dog breeds on the canine adrenal gland dimensions measured by computed tomographic imaging

Table 5 Adrenal attenuation measurements in contrast enhanced CT scan; Wilcoxon’s signed rank test in terms of side differences

		Labrador Retriever	Boxer	Beagle	Jack Russel Terrier	Dachshund
Postcontrast attenuation of the left adrenal gland (HU)	80.1 ± 14.7	68.1 ± 14.1	68.1 ± 10.8	78.8 ± 15.4	89.7 ± 18.9	82.3 ± 9.1
Postcontrast attenuation of the right adrenal gland (HU)	87.7 ± 13.0	78.9 ± 15.4	76.4 ± 9.9	89.4 ± 17.3	92.9 ± 21.6	91.1 ± 13.1
Median of postcontrast attenuation of the left adrenal gland (HU)	83.4	65.0	67.9	79.0	83.1	81.1
Lower quartil	63.3	59.8	62.7	69.5	77.2	73.8
Upper quartil	88.7	73.6	74.9	86.7	98.1	90.6
Median of postcontrast attenuation of the right adrenal gland (HU)	89.9	75.8	76.3	86.5	86.8	86.3
Lower quartil	78.5	68.0	69.9	80.5	75.2	81.7
Upper quartil	96.1	86.6	81.8	91.3	107.5	105.0
Wilcoxon’s signed rank test; P-values	0.002	< 0.0001	0.0078	0.0004	0.31	0.031

In the present table, the postcontrast determined attenuations of the right and left adrenal glands are presented for comparability with other studies on the one hand as mean with standard deviation and further as median with its quartiles. Wilcoxon’s signed rank test for investigation of side differences in terms of attenuation was carried out. The p-values below a significance level of 0.05 are considered significantly different from each other

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