Clinical Application Value of Color Doppler Ultrasound in Transplant Renal Artery Stenosis
WANG Yajuan
FAN Shuyu
LU Xiaoxue
Abstract：Objective To explore the clinical application value of color Doppler ultrasound in transplant renal artery stenosis.Methods A total of 167 patients with kidney transplantation in Zhengzhou Seventh People's Hospital from January2020 to June 2022 were selected as the study objects,and were divided into non-stenosis group(127 cases)and stenosis group(40 cases)by digital subtraction angiography.All subjects were underwent color Doppler ultrasonography to measure the peak systolic flow rate(PSV),resistance index(RI)of interlobular artery,intersegmental artery and main renal artery,and the ratio of peak flow rate was calculated.Receiver operating characteristic(ROC)curve was used to evaluate the significance of ultrasonic parameters in the diagnosis and stenosis degree of transplanted kidney artery.Results The main renal artery PSV and the ratio of peak flow rate in stenosis group were higher than those in non-stenosis group,while the interlobular artery PSV,intersegmental artery PSV,interlobular artery RI,intersegmental artery RI and main renal artery RI were lower than those in non-stenosis group(P＜0.05).The main renal artery PSV and the ratio of peak flow rate in the severe stenosis group were higher than those in the mild and moderate stenosis group,while the interlobar artery PSV,intersegmental artery PSV,interlobar artery RI and intersegmental artery RI were lower than those in the mild and moderate stenosis group(P＜0.05).ROC curve analysis was showed that the curve area of the main renal artery PSV and the ratio of peak flow rate for the diagnosis of transplant renal artery stenosis was the largest,reaching 0.957(95%CI:0.913-1.000)and 0.993(95%CI:0.984-1.000),and the curve area of the ratio of peak flow rate for the diagnosis of the degree of transplant renal artery stenosis was the largest,reaching 0.986(95%CI:0.959-1.000).Conclusion Color Doppler ultrasonography had high clinical application value in the early screening,auxiliary diagnosis and stenosis degree judgment of the transplant renal artery stenosis,and the main renal artery PSV and the ratio of peak flow rate were important ultrasonic parameters.
Keywords：transplant renal artery stenosiscolor Doppler ultrasonographydiagnostic valuereceiver operating characteristic curve
Publication Date：2023-12-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 4262-4266 )