Kidney size estimation in Korean children with Technesium-99m dimercaptosuccinic acid scintigraphy.
- Author:
Min Jung LEE
1
;
Mi Kyung SON
;
Byung Ok KWAK
;
Hye Won PARK
;
Sochung CHUNG
;
Kyo Sun KIM
Author Information
- Publication Type:Original Article
- Keywords: Kidney; Length; Child; Technesium-99m dimercaptosuccinic acid scan
- MeSH: Child*; Female; Humans; Infant; Kidney*; Pyelonephritis; Radionuclide Imaging*; Succimer*
- From:Korean Journal of Pediatrics 2014;57(1):41-45
- CountryRepublic of Korea
- Language:English
- Abstract: PURPOSE: Renal size is an important indicator to determine adequate organ growth in children. The aim of this study was to estimate renal size with Technesium-99m dimercaptosuccinic acid (DMSA) scan and propose a simple formula for predicting renal length in normal Korean children. METHODS: This study included 346 children (148 boys and 198 girls; age range, 1 month to 17 years) in whom renal length was measured using the DMSA scan. Patients with anatomical renal abnormalities or acute pyelonephritis were excluded. Children were divided into two groups: 214 children (61.8%) were less than a year old (group 1) and 132 (38.2%) were > or =1 year (group 2). RESULTS: Renal length was larger on the left side than the right side, and there was no significant gender-related difference in renal length. We propose the following formula for renal length based on the analysis of the 346 children in our study: the formula was as follows: 4.682xage (month)0.137, R2=0.780. In group 1, the formula was renal length (cm)=0.127xage (month)+5.144, R2=0.354, and in group 2, the formula was 0.334xage (year)+6.477, R2=0.829. CONCLUSION: It is difficult to establish simple formulae in infants (R2=0.354). Therefore, further studies including relevant variables are needed for this age group. We proposed formulae to estimate renal length in Korean children over 1 year of age by using the DMSA scan.
