Tab. 3.

Groups according to Banff classification and TSI elastography results

Group	Banff classification	n	Mean TSI strain ratio ± SD	TSI calyceal values ± SD	TSI parenchymal values ± SD
A	Patients without biopsy	94	2,34 ± 1,29	0,054 ± 0,028	0,023 ± 0,013
B	Patients Banff I	16	2,14 ± 0,78	0,045 ± 0,026	0,021 ± 0,008
C	Patients Banff II and III	3	1,14 ± 0,37	0,032 ± 0,014	0,029 ± 0,027