A member asked:

I have a renal ultrasound in 2 weeks. radiologist noted hydronephrosis on my ct scan from 12/26. will this study confirm the ct result?

3 doctors weighed in across 3 answers

Yes: Seems like your us was done 2 weeks ago. You should have the results. If the hydronephrosis developed after us then it will not show on ct scan.

Answered 11/25/2013

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Dr. George Klauber answered

Specializes in Pediatric Urology

Yes: Ct likely done for pain, possibly for a kidney stone which may or may not have passed. Us will show if hydronephrosis has resolved. This would be good management. Us not necessary to confirm ct diagnosed hydronephrosis if due to non-calculus (stone) obstruction like at upper ureter. Such obstruction would require a mag3 nuclear scan to quantify obstruction and need for possible corrective surgery.

Answered 7/23/2013

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Dr. Joseph Accurso answered

Specializes in Radiology

Yes: It may also see differences in the size of the renal collecting system compared to the ct which might help diagnose if the hydronephrosis is stable or changes over time.

Answered 7/23/2013

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