THE USEFULNESS OF INTER-RENAL RESISTIVE INDEX DIFFERENCE IN DIAGNOSING ACUTE UNILATERAL URETERIC OBSTRUCTION DUE TO CALCULUS

  • Raza Rahim Hyder PAF Base Masroor, Karachi
  • Yasir Khan Combined Military Hospital Lahore
  • Muhammad Umar KRL Hospital, Islamabad
  • Tariq Aziz Combined Military Hospital Lahore
  • Mohammad Saeed Combined Military Hospital Lahore
Keywords: Color Doppler ultrasonography, , ureteral calculi,, hydronephrosis

Abstract

Objectives: To evaluate the usefulness of inter-renal resistive index difference in diagnosis of acute unilateral ureteric obstruction due to calculus.

Study design: Case Control Study

Place and Duration of Study: Study was conducted in Department of Radiology, Combined Military Hospital Lahore, from August 2005 to February 2006.

Subjects and Methods: Sixty patients were divided in two groups of 30 each group I, 30 patients with unilateral acute ureteric colic due to ureteric calculus; and group II, 30 patients having no symptoms and with a normal ultrasound (as controls).

Interlobar arteries were examined by Colour Doppler ultrasound in upper, mid and lower renal pole with a two to five millimetre sample volume to calculate average resistive index. Inter-renal resistive index difference (∆RI) was then calculated.

Results: Statistically significant difference was observed in the inter-renal resistive index difference (∆RI) measurements with mean value in the case group of 0.09 compared to 0.021 in controls. Average intrarenal resistive index measurement in the obstructed kidney was .69 compared to 0.58-0.59 in the control group.

Conclusion: Measurement of inter-renal resistive index difference in patients with ureteric colic improves diagnostic accuracy of ultrasound in distinguishing between obstructive and non-obstructive dilatation.

 

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Published
2018-08-31
How to Cite
Hyder, R. R., Khan, Y., Umar, M., Aziz, T., & Saeed, M. (2018). THE USEFULNESS OF INTER-RENAL RESISTIVE INDEX DIFFERENCE IN DIAGNOSING ACUTE UNILATERAL URETERIC OBSTRUCTION DUE TO CALCULUS. Pakistan Armed Forces Medical Journal (PAFMJ), 59(2), 211-6. Retrieved from https://pafmj.org/index.php/PAFMJ/article/view/1894
Section
Original Articles