title: Correlation of Doppler parameters with renal pathology: A study of 992 patients.
abstract: Ultrasound examination is a non-invasive diagnostic technique that is used on patients with suspected or established renal disease. The purpose of this study was to determine the role of intrarenal Doppler ultrasonography in the assessment of the renal pathology of patients with chronic kidney disease (CKD), as shown by kidney biopsy. This retrospective analysis enrolled 992 consecutive patients with CKD who underwent intrarenal Doppler ultrasonography and a kidney biopsy at the Departments of Nephrology of three hospitals between January 2006 and December 2010. Doppler parameters, including the peak systolic velocity (PSV), end-diastolic velocity and resistive index (RI) of the interlobar arteries, were compared with the renal biopsy findings. The RI of the interlobar arteries was correlated with the estimated glomerular filtration rate and the histological damage scores, demonstrating the most evident correlation with the tubulointerstitial damage (TI) score among the three histological components. The PSV of the interlobar arteries increased as the CKD stage progressed and correlated with a number of the renal histological changes, including the glomerulosclerosis and TI scores. The RI and PSV of the interlobar artery are correlated with the histopathological pattern in CKD. Thus, the RI and PSV of the interlobar artery may be potential indicators for monitoring the progression of renal damage.
authors.affiliation: Department of Nephrology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China.
authors.forename: Qinkai
authors.initials: Q
authors.lastname: Chen
authors.affiliation: Department of Nephrology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China.
authors.forename: Feng
authors.initials: F
authors.lastname: He
authors.affiliation: Department of Nephrology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China ; Department of Nephrology, First People's Hospital of Jiujiang City, Jiujiang, Jiangxi 332000, P.R. China.
authors.forename: Xiaoran
authors.initials: X
authors.lastname: Feng
authors.affiliation: Department of Nephrology, General Hospital of Guangzhou Military Command of PLA, Guangzhou, Guangdong 510010, P.R. China.
authors.forename: Zhengmao
authors.initials: Z
authors.lastname: Luo
authors.affiliation: Department of Nephrology, General Hospital of Guangzhou Military Command of PLA, Guangzhou, Guangdong 510010, P.R. China.
authors.forename: Jianlin
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Department of Nephrology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China.
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Department of Nephrology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Department of Nephrology, General Hospital of Guangzhou Military Command of PLA, Guangzhou, Guangdong 510010, P.R. China.
authors.forename: Junrong
authors.initials: J
authors.lastname: Tong
keywords: Doppler; end-diastolic velocity; peak systolic velocity; renal pathology; resistive index