title: Ultrasonic imaging characteristics of transplanted kidneys with delayed graft function.
abstract: We investigated the ultrasonic imaging characteristics of transplanted kidneys with delayed graft function (DGF). Ultrasonography was performed in 44 patients after kidney transplantation, and a time-intensity analysis was performed to compare the differences between patients with normal graft function (NGF) and those with DGF. Compared with the NGF group, the DGF group had earlier arrival time, shorter time to peak, and higher arrival intensity and peak intensity (P < 0.05). The variation-of-intensity parameters in different renal cortices increased, whereas the variation-of-time parameter decreased, in those with DGF (P < 0.05). In conclusion, compared with the NGF group, the microcirculation perfusion of transplanted kidneys in the DGF group showed higher perfusion with earlier arrival time, shorter time to peak, and higher arrival intensity and peak intensity. In addition, the intensity variations of contrast agent in different renal cortices from patients with DGF were greater, whereas the variations in perfusion time were smaller than those in patients with NGF.
authors.affiliation: Department of Ultrasound Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
authors.forename: W X
authors.initials: WX
authors.lastname: Liang
authors.affiliation: Department of Radiology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
authors.forename: M J
authors.initials: MJ
authors.lastname: Cai
authors.affiliation: Department of Ultrasound Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
authors.forename: L
authors.initials: L
authors.lastname: Jiang
authors.affiliation: Department of Ultrasound Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
authors.forename: Y Q
authors.initials: YQ
authors.lastname: Xie
authors.affiliation: Department of Ultrasound Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
authors.forename: W L
authors.initials: WL
authors.lastname: Yuan
authors.affiliation: Department of Ultrasound Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
authors.forename: H
authors.initials: H
authors.lastname: Zhang
mesh_terms: D000328:Adult; D051799:Delayed Graft Function / Q000175:diagnosis / Q000000981:diagnostic imaging*; D005260:Female; D006084:Graft Rejection / Q000175:diagnosis / Q000000981:diagnostic imaging; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D016030:Kidney Transplantation; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity; D013997:Time Factors; D014463:Ultrasonography