title: A Comparative Study of Sonographic Grading of Renal Parenchymal Changes and Estimated Glomerular Filtration Rate (eGFR) using Modified Diet in Renal Disease Formula.
abstract: BACKGROUND
  The sonographic findings are of help in evaluating the nephrological diseases. Glomerular filtration rate is another parameter for assessing the reserved renal function and an indicator of prognosis. In clinical practice GFR estimation (eGFR) is done by using a mathematical formula. In our study, we compared the sonographic grading of renal parenchymal changes with eGFR calculated using Modified Diet in Renal Diseases formula based on serum creatinine, age, gender and ethnicity.
  
  
  OBJECTIVE
  To evaluate the relevance of sonographic grading of renal parenchymal changes in assessing the severity of the renal disease and comparing it to the eGFR calculated using MDRD formula based on the age, gender and serum creatinine value of the patient.
  
  
  METHODS
  The adult patients with suspected kidney disease referred for sonography of abdomen were our study participants. As per our study design following strict inclusion and exclusion criteria, patients were selected as study participants and for each of the patient's renal parenchymal status, serum creatinine, age, gender and ethnicity were documented.
  
  
  RESULTS
  A total of 70 patients were our study participants, out of which 67.1% were males and 32.9% were females. Our study showed a linear correlation between sonographic grading of renal parenchymal changes with eGFR.
  
  
  CONCLUSIONS
  We conclude that by evaluating the kidneys with sonography and calculating eGFR using MDRD formula the renal status will be more accurately interpreted.
authors.affiliation: Associate Professor, Department of Radiology, Yenepoya Medical College Hospital , Deralakatte, Mangalore, Karnataka, India .
authors.forename: Vinayaka Undemane
authors.initials: VU
authors.lastname: Shivashankara
authors.affiliation: Assistant Professor, Department of Community Medicine, Yenepoya Medical College Hospital , Deralakatte, Mangalore, Karnataka, India .
authors.forename: Siddharudha
authors.initials: S
authors.lastname: Shivalli
authors.affiliation: Associate Professor, Department of Nephrology, Yenepoya Medical College Hospital , Deralakatte, Mangalore, Karnataka, India .
authors.forename: B H Santhosh
authors.initials: BH
authors.lastname: Pai
authors.affiliation: Professor and Head, Department of Radiology, Yenepoya Medical College Hospital , Deralakatte, Mangalore, Karnataka, India .
authors.forename: Koteshwara Devadasa
authors.initials: KD
authors.lastname: Acharya
authors.affiliation: Associate Professor, Department of Radiology, Yenepoya Medical College Hospital , Deralakatte, Mangalore, Karnataka, India .
authors.forename: Ravichandra
authors.initials: R
authors.lastname: Gopalakrishnan
authors.affiliation: Postgraduate, Department of Radiology, Yenepoya Medical College Hospital , Deralakatte, Mangalore, Karnataka, India .
authors.forename: Vivek
authors.initials: V
authors.lastname: Srikanth
authors.affiliation: Postgraduate, Department of Radiology, Yenepoya Medical College Hospital , Deralakatte, Mangalore, Karnataka, India .
authors.forename: Vishwanath
authors.initials: V
authors.lastname: Reddy
authors.affiliation: Assistant Professor, Department of Radiology, Yenepoya Medical College Hospital , Deralakatte, Mangalore, Karnataka, India .
authors.forename: Arafat
authors.initials: A
authors.lastname: Haris
keywords: Correlation; Kidney disease; Ultrasound