You are here:

Nephrology/KIDNEY ULTRASOUND

Advertisement


Question
Dear Dr Shah
My husband is 66 and has only one kidney.  He lost the other one due to a rugby injury many years ago. He has chronic kidney disease. 18 months ago, when his GFR was about 30 he had a renal ultrasound and the results read as follows " R kidney is normal in size - 11.9. Increase in echogenicity which could be due to renal failure, nephritis.  Minimal cortical thinning noted, measuring .9.
Now his GFR is sitting at 15 and he has just had another ultrasound done.  This one says his kidney is normal in size and no mention was made of increased echogenicity or cortical thinning.
How is it possible that this ultrasound is normal compared to the last one done while his kidney function is half what it was then.
I would appreciate your help in answering this question for me.

Answer
Rosemary,

Your question is best answered by a Diagnostic Radiologist.

However, as far as I know, Ultrasound is a very subjective examination and there is a lot of inter-operator variability. Size interpretation depends a lot on the sections studied and the placement of cursor on the screen.  Echogenicity can be different simply if the machine gain setting is different. If in doubt, ask your doctor to order a 24 hour urinary creatinine clearance.

Sincerely,

Dr. Shah

Nephrology

All Answers


Answers by Expert:


Ask Experts

Volunteer


Dr. Shamik Shah, MD, DNB (Nephrology), ISN Fellow

Expertise

I can answer all questions related to kidney diseases, hypertension, plasmapheresis and kidney transplantation. I am an Indian-Board certified Nephrologist. I was a post-Doctoral Scholar at the Division of Nephrology & Hypertension,Department of Medicine, University of California, San Diego. My area of interest is Critical care Nephrology and Acute Kidney Injury.

Please mention the units in which your lab results were reported and the normal reference range for your laboratory.


Alternative Website
http://www.syndeohealth.com/doctors/shamik-shah/91

Experience

Ten years as a Critical Care & Transplant Nephrologist

Organizations
International Society of Nephrology
Indian Society of Nephrology
Indian Medical Association
European Renal Association


Publications
- Shah SH, Cerda J. Acute Tubular Necrosis; Lerma, Edgar V., Rosner, Mitchell eds. Clinical Decisions in Nephrology, Hypertension and Kidney Transplantation. Springer ISBN 978-1-4614-4453-4, pp. 191-198
- Shah SH, Cerda J. Management of Acute Kidney Injury; Lerma, Edgar V., Rosner, Mitchell eds. Clinical Decisions in Nephrology, Hypertension and Kidney Transplantation. Springer ISBN 978-1-4614-4453-4
- Cerda J, Tolwani A, Shah SH, Ronco C. Continuous Renal Replacement Therapies in Modeling and Control of Dialysis Systems edited by Azar AT, Springer-Verlag, Heidelberg, Germany (In Press)
- Shah SH, Cerda J, Kellum JA. Acute Kidney Injury in Special Circumstances. John Kellum, Jorge Cerda, eds. Renal and Metabolic Disorders, Oxford University Press (In press)
- Shah SH, Mehta RL. “Anticoagulation in CRRT: Is Citrate better?”; Vineet Nayyar Ed. Critical Care Update 2009, Jaypee Brothers (In press)
- Shah SH, Mehta RL. “Non-dialytic management of acute kidney disease”; Evidence based Nephrology, BMJ, (In press)
- Shah SH, Mehta RL. “Epidemiology of Community-acquired AKI”; Ronco C, Bellomo R, Kellum J Eds. Critical Care Nephrology, Saunders. ISBN 1-4160-4252-0
- Abdeen O, Shah SH, Mehta RL; “Dialysis therapies in the surgical intensive care unit”; William Wilson, Christopher Grande, David Hoyt Eds. Trauma: Resuscitation, Anesthesia, and Critical Care, Informa Healthcare, NY 2007. ISBN 0-8247-2920-X
- Shah SH, Mehta RL. Acute kidney injury in critical care: time for a paradigm shift? Curr Opin Nephrol Hypertens. 2006 Nov;15(6):561-5.
- Shah, SH, Soroko S, Lischer E, Mehta RL. Delivered vs. Prescribed dose of Dialysis in Hospitalized Patients: Results of an Audit. J Am Soc Nephrol 17(Abstracts Issue): 2006, 107A.
- Shah SH et al “Biochemical Nutritional Parameters in Non-vegetarian and Vegetarian CAPD patients” Perit Dial Int 2001; 21 Suppl 2: S1-182


Education/Credentials
MBBS, MD (Internal Medicine), Diplomate of National board (Nephrology), ISN Fellow

Awards and Honors
Educational Ambassador of the International Society of Nephrology 2010
Fellowship of the International Society of Nephrology 2005.
Young Investigator Award by the International Society of Peritoneal Dialysis 2001

©2016 About.com. All rights reserved.