Renal Doppler Ultrasonography: A Non Invasive Predictor of Kidney Dysfunction
Gihan Hasan Gamal 1 and Manar Ahmed Daoud 2
1 Radiology Dept. 6 October University
2Tudor Belhars Institute
Abstract: Considering the fact that grey scale ultrasonography findings in patients with chronic medical diseases are non specific, this study was conducted to evaluate the relationship between RI of arterial Doppler wave form and degree of renal parenchymal damage as measured clinically by serum creatinine level. Hung et al., 2011 stated that there is significant correlation between RI level and serum creatinine value and so RI may serve as an indication for predicting renal graft function after renal transplantation. Bommart et al., 2010concluded his study by the fact that there is good correlation between RI measured by Doppler ultrasound and kidney function and histology. Material and Methods: The study included 70 patients with chronic renal parenchymal medical diseases, grey scale ultrasonography was done for all cases to assest morphological renal changes include, kidney measurements and grade of renal echogenicity. Renal resistive index was measured by color Doppler sonography for 10 interlobar arteries, (5 interlobar arteries for each kidney). The ultrasonographic findings were correlated with serum creatinine levels for these patients. Renal biopsy reports, for 30 patients were within their files. Results: We proved that RIs were normal in non echogenic kidneys and were high in echogenic kidneys. The second fact that with increasing in RI levels, there was increase in serum creatinine levels. Patients with RI of (0.6) has normal serum creatinine level 1.4. Patients of average RI of 0.74 their serum creatinine levels were reached up to (1.9). Patients of grade 111 echogenicity recorded high RIs ranged from 0.97 up to 1.9. Serum creatinine levels in these cases reached 4mg /dl and more.The third important observation was that during and after medical treatment, there was progressive lowering in RIs accompanying by decreasing in serum creatinine levels.Conclusion: The study suggests that Doppler sonography may be helpful in evaluation of renal function status in patients of medical renal diseases with same sensitivity as serum creatinine RI.in addition can delineate prognosis and guide therapy over a long term follow up in patients with chronic renal diseases.
[Gihan Hasan Gamal and Manar Ahmed Daoud. Renal Doppler Ultrasonography: A Non Invasive Predictor of Kidney Dysfunction. Life Sci J 2013;10(1):1064-1067] (ISSN:1097-8135). http://www.lifesciencesite.com.
Keywords: Renal; Doppler; Ultrasonography; Invasive Predictor; Kidney; Dysfunction.