Author |
현인영(In Young Hyun),이동수(Dong Soo Lee),이경한(Kyung Han Lee),정준기(June Key Chung),이명철(Myung Chul Lee),고창순(Chang Soon Koh),김광명(Kwang Myung Kim),최황(Hwang Choi),최용(Yong Choi), |
Abstract |
We evaluated diagnostic accuracy of diuretic renal scan
with standardization in 45 childrens(107 hydronephrotic
kidneys) with 91 diuretic assessments. Sensitivity was
100% specificity was 78%, and accuracy was 84% in 49
hydronephrotic kidneys with standardization. Diuretic
renal scan without standardization, sensitivity was
100%, specificity was 38%, and accuracy was 57% in 58
hydronephrotic kidneys. The false-positive results were
observed in 25 cases without standardization, and in 8
cases with standardization. In duuretic renal scans
without standardization, the causes of false-positive
results were 10 early injection of lasix before mixing
of radioactivity in loplsty, 6 extrarenal pelvis, and 3
immature kidneys of false-positive results were 2
markedly dilated systems postpyeloplsty, 2 etrarenal
pevis, 1 immature kidney of neonate , and 2 severe
renal dysfunction, 1 vesicoureteral, reflux. In
diuretic renal scan without standardization the false-
positive results by inadequate study were common, but
false-positive results by inadequate study were not
found after standardization. The false-positive results
by dilated pelvo-calyceal systems postpyeloplsty,
extrarenal pelvis, and immature kidneys of, neonates
were not dissolved after standardization. In
conclusion, diagnostic accuracy of diuretic renal scan
with standardization was useful in children with renal
outflow tract obstruction by improving specificity
significantly. |