Effect of different kind of background correction on glomerular filtration rate measured by dynamic renal imaging with ~(99m)Tc-DTPA
- VernacularTitle:不同本底感兴趣区对显像法测定肾小球滤过率的影响
- Author:
Yukun SHANG
;
Lingshan KONG
;
Wenzhou PAN
;
- Publication Type:Journal Article
- Keywords:
radionuclide imaging;
glomerular filtration rate;
effective renal plasma flow;
background region of interest
- From:
Academic Journal of Second Military Medical University
1982;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Dynamic renal imaging studies were performed in 132 patients using 99m Tc DTPA and 131 I OIH. Effective renal plasma flow(ERPF) and glomerular filtration rate(GFR) was obtained. GFRs were calculated with 2 background regions of interest(ROI),conventional subrenal areas(SB) and suprarenal areas(SP). The relative renal functions(RR) obtained by GFRs determination was significantly higer compared with that by ERPF. These results suggested that the RR of impaired kidney determined by GFR(SB) was obviously higher than that assessed by ERPF. Higher coefficient( r value) was gotten with GFR(SP) than with GFR(SB).Results suggested that the GFR obtained with conventional subrenal background ROI might overestimate individual renal function of the poorly functional kidney and the GFR estimated by suprarenal background ROI might be more accurate.
