COMPUTED-TOMOGRAPHY EVALUATION OF RENAL PARENCHYMAL VOLUME IN PATIENTS WITH CHRONIC PYELONEPHRITIS AND ITS RELATIONSHIP TO GLOMERULAR-FILTRATION RATE

The measurement of renal parenchymal volume using a calibrated compute d tomography image processing method has been evaluated clinically on a cohort of patients with chronic pyelonephritis. Comparison of renal volume with function as assessed by Tc-99(m) DTPA renography demonstra ted a simple linear relationship in patients who were normotensive and aproteinuric. The implications of this result on the interpretation o f prognostic factors determining declining renal function in chronic p yelonephritis are discussed.