Renal shear wave elastography and urinary procollagen type III amino-terminal propeptide (uPIIINP) in feline chronic kidney disease

Table 3 Correlations between the average renal Young’s modulus (E) values and plasma creatinine concentration, BUN, USG, UPC ratio, Uosm/Posm ratio and FE_Na, FE_K, FE_Cl, FE_Mg in the healthy cats (HC) and chronic kidney disease (CKD) cats

Parameters	No. of samples	Average E values of cortex	Average E values of medulla
Parameters	No. of samples	r	r
Plasma creatinine	48	0.509^***	0.329^*
BUN	48	0.361^*	0.188
USG	39	−0.567^***	−0.255
UPC ratio	39	0.233	−0.045
Uosm/Posm ratio	39	−0.582^***	−0.306
FE_Na	39	0.256	0.089
FE_K	39	0.250	−0.219
FE_Cl	39	0.506^**	0.478^**
FE_Mg	39	0.293	0.079

E value the Young’s modulus values, BUN blood urea nitrogen, USG urine specific gravity, UPC ratio urine protein creatinine ratio, Uosm/Posm ratio urine osmolality plasma osmolality ratio, FE_Na fractional excretion of sodium, FE_K fractional excretion of potassium, FE_Cl fractional excretion of chloride, FE_Mg fractional excretion of magnesium
Correlations between parameters were made using Spearman correlation,^*P < 0.05; ^**P < 0.01; ^***P < 0.001

ISSN: 1746-6148