Correlation of Duplex Ultrasonographic Parameters with Glomerular Filtration Rate in Chronic Kidney Disease

Abstract

Background: Chronic kidney disease encompasses a spectrum of different pathophysiological processes associated with abnormal renal function and a progressive decline in glomerular filtration rate. Duplex ultrasonography is widely available and important imaging investigation required in the work?up of chronic kidney disease. The objective of the study was to assess correlation of renal duplex ultrasonographic parameters with decreased glomerular filtration rate in patients with chronic kidney disease.Methods: This was a crosssectional hospital-based study. A total of sixty-two patients with chronic kidney disease referred for ultrasonography were included in the study. Patients were evaluated by duplex ultrasonography. Correlation of renal length, parenchymal thickness, cortical thickness, cortical echogenicity, peak systolic velocity, end diastolic velocity pulsatility index and resistive index with glomerular filtration rate was evaluated by using Pearson’s correlation coefficient.Results: Chronic kidney disease was seen more prevalent in 41-50 years of age group. The major risk factors associated with Chronic kidney disease was Hypertension and Diabetes Mellitus. A significant positive correlation of renal length, parenchymal thickness, cortical thickness (p value < 0.01) and end diastolic velocity (p value < 0.05) with eGFR and significant negative correlation of cortical echogenicity, resistive index and pulsatility index (p value < 0.01) with eGFR was derived.Conclusions: Duplex sonographic findings of renal length, parenchymal thickness, cortical thickness, cortical echogenicity, end diastolic velocity, pulsatility index and resistive index are found to be useful parameters in evaluation of chronic kidney disease.Keywords: Chronic kidney disease; duplex ultrasonography; glomerular filtration rate.