2026-04-17T04:08:43Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1783882025-12-05T09:24:16Zcom_2072_1057col_2072_478798col_2072_478799col_2072_478917

00925njm 22002777a 4500 dc Bajén Lázaro, Ma. Teresa author Puchal Añé, Rafael author González Sistal, Ángel author Grinyó Boira, Josep M. author Martínez Castelao, Alberto author Mora Salvador, Jaume author Martín-Comín, Josep author 2021-06-15T12:17:59Z 2021-06-15T12:17:59Z 1997-08-01 2021-06-15T12:17:59Z The study of renal retention function by deconvolution analysis of renographic curves is useful to calculate quantitative parameters in renal studies. The aim of the work is to evaluate the usefulness of 99mTc-MAG3 renogram deconvolution in renal function monitoring of kidney graft recipients. Methods: forty-three kidney grafts and 112 renograms were studied: 41 were diagnosed as functioning graft, 35 as acute tubular necrosis, 24 as acute rejection, 8 as obstruction and 4 as cyclosporin toxicity. The parameters calculated were mean transit time (MTT), time at 20% of renal retention function (T20) and initial uptake (IU). Results: MTT and T20 were significantly longer in obstructives than in functioning grafts (p < 0.001). Initial uptake was significantly lower in acute tubular necrosis (ATN) and acute rejection (p < 0.001) and in obstructives (p < 0.05) than in functioning grafts. The joint evaluation of MTT and IU allowed to diagnose cases with graft function severely impaired. Conclusion: initial uptake is useful in evaluating post-transplantation complications and in combination with MTT and T20 reflects renal dysfunction severity. Rebuig (Biologia) Trasplantament renal Diagnòstic per la imatge Radiofàrmacs Graft rejection Kidney transplantation Diagnostic imaging Radiopharmaceuticals MAG3 renogram deconvolution in kidney transplantation: utility of the measurement of initial tracer uptake