Correlation of renal b-mode ultrasonographic findings with diabetic nephropathy stage
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Aim: We aimed to investigate the renal morphological features detected by B-mode ultrasonography (US) in various clinical stages of diabetic nephropathy by means of a control group. Methods: As control group, 20 healthy person were selected. As study group, 69 patients with type-2 diabetes were included. All cases in both groups were evaluated with B-mode US in terms of renal length, parenchymal thickness and echogenicity. Diabetic patients were divided into 3 groups according to 24-hour urinary albumin excretion ratios (AER) (Group-1: AER<30 mg/ day; Group-2: AER 30-300 mg/ day; Group-3: AER >300 mg/ day); and mean renal parenchymal thickness and length were measured. By SPSS programme, mean values were compared between groups. Results: When mean renal length was compared between control and study groups, significant difference was noticed; but when mean renal parenchymal thickness was compared, no significant difference was demonstrated between two groups. When study groups were compared between each other,no statistically significant difference was seen. Cortical hyperechogenicity ratios; mean serum BUN and creatinine clearance rates, were correlated with nephropathy stage. Conclusion: With progression of nephropathy in diabetic patients,renal parenchymal thickness do not significantly differ; but hyperechogenicity and decrease in renal dimensions (control versus study group) occur.