Noninvasive assessment of renal allograft status by virtual touch tissue quantification technique

VernacularTitle:声触诊组织量化技术无创评价移植肾状态的初步研究
Author: Wanyuan HE ; Chaolun LI ; Zhengbiao JI ; Wenping WANG ; Yongying QIU
Publication Type:Journal Article
Keywords: Ultrasonography; Kidney transplantation; Graft rejection; Virtual touch tissue quantification
From: Chinese Journal of Ultrasonography 2013;(2):130-132
CountryChina
Language:Chinese
Abstract: Objective To evaluate the feasibility of virtual touch tissue quantification (VTQ) for the assessment of renal allograft.Methods A total of 72 kidney recipients were examined with conventional ultrasound and VTQ after transpantation.Biopsies were performed in 34 patients,20 patients were with acute rejection (AR),14 with chronic allograft nephropathy (CAN),38 patients as control group.The peak systolic velocity (PSV) and resistance index(RI) were measured on main,infrarenal and arcuate arteries with conventional ultrasound and shear wave velocity (SWV) of the renal cortex was obtained by VTQ.All the data were compared among three groups.Results There were no significant differences of PSV between two groups.An increased RI was presented in the CAN group(P ＜0.05).The mean SWV was (2.67 ± 0.27) m/s,(2.90 ± 0.31)m/s and (2.28 ± 0.24)m/s for AR,CAN and normal group,respectively.There were significant differences of SWV among the three groups (P ＜ 0.05).Conclusions VTQ technique could provide a new method for the assessment of transplanted kidney.