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KMID : 1143620140180020063
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Korean Journal of Nuclear Medicine Technology
2014 Volume.18 No. 2 p.63 ~ p.67
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Suitability of Measuring a Kidney Depth with Assessment of Glomerular Filtration Rateusing 99mTc-DTPA in the Ectopic Kidney and Pediatric Patients
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Choi Jae-Min
Lee Yeong-Hee
Shim Dong-Oh
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Abstract
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A glomerular filtration rate (GFR) study is a test that uses radioactive materials or tracers (radiopharmaceuticals) and a computer to see how well the kidneys are working. Asan Medical Center analyzed and compared data between kidney depth, acquired from kidney donors' CT image and acquired from Gates method's GFR value that are calculated by Tonnesen equation. This study was able to confirm that kidney depth measured from CT image was higher than the Gates Method's GFR value, which was calculated by Tonnessen equation; the direct relationship among pathologic results is confirmed. Particularly, kidney donor whose kidney was at the pelvic area had direct relationship with other clinical results. During the GFR test, it is necessary to confirm the location of kidney has no change with reference of CT image. If kidney depth is manually corrected using CT image when we measures GFR of deformed or horse-shoe kidney, it would be possible to acquire the compatible value which is equivalent to clinical result. There would be a possible issue of appropriateness that whether the applied GFR using CT image's kidney depth has clinical validity. In case of a pediatric patient, the GFR derived from Tonnesen was quiet underestimated while manual method and Gordon stay in normal range. Which results may be correct among them? There have been many reports about kidney depth, to be an accurate index of GFR in children. As one of the study performers, we should contemplate what the best option for pediatric patients would be.
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KEYWORD
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Glomerular filtration rate (GFR), Kidney depth, Tonnesen, Taylor, Gordon
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