ESTIMATION OF GLOMERULAR FILTRATION RATE IN RENAL TRANSPLANTED PATIENTS: COMPARISON BETWEEN 99m TECHNETIUM DTPA GAMMA CAMERA TECHNIQUE AND PLASMA CLEARANCE TECHNIQUE
Abstract
OBJECTIVE: To find the correlation of glomerular filtration rate (GFR) derived from 99mtechnetium diethylenetriaminepentaacetic acid (99mTc DTPA) renography with gamma camera technique and plasma clearance technique in renal transplanted patients and to find the relationship between GFR values from the two techniques.
DESIGN: Descriptive study design with prospective data collection.
SETTING: Department of Radiology, Srinagarind Hospital, Khon Kaen University.
MATERIALS AND METHODS: Ten renal transplanted patients (12 studies) were enrolled into the study between October 2004 and July 2005. GFR was estimated by two different methods, gamma camera technique and plasma clearance technique, using 99mTc DTPA. GFR values derived from the two methods were correlated. The relationship between GFR values from the two techniques is then determined.
RESULTS: We found that there was a fair correlation of the GFR values between the two techniques (r= 0.69).
CONCLUSION: Although the GFR value from gamma camera technique may be lower than that of the standard plasma clearance technique, GFR by this method is reliable enough in determining renal function in patients post renal transplantation.
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