4901 THE EFFECT OF CHRONIC KIDNEY DISEASE IN CONTRAST-ENHANCED ULTRASONOGRAPHY WITH ARRIVAL TIME PARAMETRIC IMAGING - Marc, Luciana; Lupusoru, Raluca; Mihaescu, Adelina; Schiller, Oana-Marina; Chisavu, Lazar; Pascota, Razvan Dragota; Olariu, Nicu; Schiller, Adalbert (Nephrology, dialysis, transplantation, 2023)