Ultrasonographically determined renal values and comparisons to serum biochemistry renal variables in aged semi-captive cheetahs (Acinonyx jubatus)

Table 4 Cheetah aorta, L6 and size index (SI) values and associated ratios

	Measurement or ratio	N	Mean	SD	Minimum	Maximum
	Aorta diameter (mm)	27	8.6	1.3	6.5	12.3
	L6 length	27	40.6	3.1	33.9	48.8
Left kidney	Length:Ao	25	7.69	1.21	4.54	10.72
	Volume:Ao	24	6.25	1.39	2.91	8.55
	Length:L6	25	1.60	0.19	1.27	2.06
	Volume:L6	24	1.31	0.29	0.87	1.91
	Length:SI	27	93.2	9.8	71.75	108.8
Right kidney	Length:Ao	24	7.82	1.18	4.59	10.23
	Volume:Ao	24	6.78	1.17	4.27	10.38
	Length:L6	24	1.62	0.17	1.29	1.96
	Volume:L6	24	1.42	0.26	0.94	1.94
	Length:SI	27	94.0	8.7	72.65	107.6
Both kidneys^a	Length:Ao	49	7.75	1.62	4.54	10.72
	Volume:Ao	48	6.51	1.29	2.91	10.38
	Length:L6	49	1.61	0.18	1.27	1.96
	Volume:L6	48	1.36	0.28	0.87	1.94
	Length:SI	54	93.6	9.1	71.75	108.8

^aValues combined for left and right kidneys as they were not significantly different

ISSN: 1746-6148