MR Urography Revealing Renal Physiology: Compensatory Changes in Duplex Kidneys - 06/04/26
, Harsha Garg a, Sila Kurugol a, Deborah Stein b, Michael Ferguson b, Karen Sarao a, Jeanne S. Chow aCet article a été publié dans un numéro de la revue, cliquez ici pour y accéder
ABSTRACT |
Objective |
To use DCE-MRU to evaluate the physiological differences between duplex kidneys with and without obstructed moieties.
Methods |
Consecutive patients who underwent DCE-MRU studies between January 2019 and March 2021 for evaluation of duplex kidneys were included. The study population consisted exclusively of patients with duplex kidneys (complete ureteral duplication), divided into group A (duplex kidneys with one obstructed moiety, n = 5) and group B (duplex kidneys without obstruction, n = 5). Utilizing prior described techniques, filtration rate (Ft) parameter, which is a measure of renal filtration, was calculated of each renal moiety and compared between the two groups.
Results |
Five patients in group A were compared to 5 patients in group B. In group A, the non-obstructed moiety showed relative increased Ft or hyper filtration compared to the normal contralateral side. Those in group B did not show increased Ft.
Conclusion |
MRU, with its high spatial and temporal resolution and its ability to calculate Ft, provides a non-invasive assessment of renal physiology, and this is the first report of renal compensation occurring within a kidney where one moiety of the kidney demonstrates hyperfiltration, perhaps as a compensation for the stressed obstructive state of the other pole.
Le texte complet de cet article est disponible en PDF.Plan
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Déjà abonné à cette revue ?