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KMID : 1143620210250010015
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Korean Journal of Nuclear Medicine Technology
2021 Volume.25 No. 1 p.15 ~ p.20
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Discrepancy and Correlation in the renal length between Kidney CT and 99mTc-DMSA Renal scan
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Jung Woo-Young
Shim Dong-Oh
Lee Dong-Hun
Choi Jae-Min
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Abstract
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Purpose: This article studies the relationship between the length of a kidney measured by two scanning methods: Kidney Computed Tomography (CT) and 99mTc-Dimercaptosuccinic acid (DMSA) renal scan. Kidney CT provides a better anatomic assessment, while 99mTc-DMSA renal scan is superior in the kidney function test.
Materials and Methods: From January to December of 2019, two hundred patients who had Kidney CT and Tc99m-DMSA renal scan were chosen for this study. SPSS17.0 was selected for statistical analysis.
Results: Due to the effect of the breathing and resolution of 99mTc-DMSA renal scan, it showed the kidney's relatively longer length than the length of Kidney CT. For the same kidney, the length comparison among different brands' Gamma cameras was negligible. The length difference within the same age group did not show a noticeable discrepancy. However, there was a length difference between the radio technologists. Kidney CT and 99mTc-DMSA renal scan indicated a strong positive correlation between the length of the left and right kidney.
Conclusion: It is necessary to establish a standardized measurement method for measuring kidney length using 99mTc-DMSA renal scan. The kidney's functional changes and length changes are indications of Kidney diseases. Especially, pediatric patients tend to use 99mTc-DMSA renal scan for assessing the kidney's shape and the function to avoid potential radiation exposure during the Kidney CT. Therefore, it is significant to provide not only the kidney's functional information but also an anatomic analysis, including the kidney's size, length, and location through the 99mTc-DMSA renal scan.
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KEYWORD
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Discrepancy in the renal length, Correlation in the renal length, Kidney CT, 99mTc-DMSA Renal scan
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