“…Seventeen studies were performed in native kidneys. 1,[3][4][5][6]11,[16][17][18]21,[23][24][25]27,28,30,32 The proportion of technical failure was acquired in seven studies 1,3,6,11,17,23,27 and the pooled proportion of a For laterality of kidney, studies having measured kidney stiffness in either right or left affected kidneys according to the conditions (ureteropelvic junction obstruction 25 and vesicoureteral reflux 18,21 ) and transplanted kidney 7,19,20,22,26,29,31 were excluded in subgroup analyses.…”