Evaluating pediatric ureteropelvic junction obstruction: Dynamic magnetic resonance urography vs renal scintigraphy 99m-technetium mercaptoacetyltriglycine

Table 2 Decision-making for surgical correction of ureteropelvic junction obstruction, n (%)

	MAG-3 primary, n = 30 (75)	DMRU secondary, n = 30 (75)	DMRU primary, n = 10 (25)	MAG-3 secondary, n = 10 (25)
Affected kidney	42 (28-48)	42 (22-50)	22 (15-40)	38 (31-45)
Age, months	13 (4-48)	29 (9-109)	41 (11-129)	12 (4-116)
Affected renal size, mm
RUS	28 (24-35)	XY	28.5 (13)	XY
MRI		28 (21-35)
Before furosemide		30 (24-38)		26 (11)
After furosemide				30 (17)
Surgical decision	No	Yes	No	Yes

Values are shown as median (interquartile range). DMRU: Dynamic contrast-enhanced magnetic resonance urography; MAG-3: 99m-technetium mercaptoacetyltriglycine; MRI: Magnetic resonance imaging; RUS: Renal ultrasonography.