Lean body mass is better than body surface area in correcting GFR

Autor: Hongwei Si, Shengzu Chen, Jianzhong Liu, Zhili Lei, Jianhua Geng, Sijin Li
Rok vydání: 2012
Předmět:
Zdroj: Clinical nuclear medicine. 38(5)
ISSN: 1536-0229
Popis: PURPOSE The Gates-based renography (gGFR) and plasma-based clearance rate (pGFR) are conventionally corrected with body surface area (BSA). Limited studies indicated that the lean body mass (LBM) might be better than BSA in correcting pGFR. Therefore, we suggest that LBM is also better in correcting gGFR and improve the correlation coefficient between gGFR and pGFR. METHOD During June 2009 and December 2010, the gGFR and pGFR of 63 patients with hydronephrosis were measured and corrected with BSA and LBM, respectively. The correlation and regression analyses were conducted to illustrate the power of BSA and LBM correction. RESULTS In a paired t test, there was no significant difference between pGFR and gGFR in patients with stages 1 and 2, although this was significant in stages 3 and 4. However, neither LBM nor BSA correction could eliminate the difference. In all patients (N = 63), the correlation coefficient (r) between pGFR and gGFR was 0.794 (P
Databáze: OpenAIRE