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Journal of Ultrasound in Medicine, Vol 18, Issue 12 827-830, Copyright © 1999 by American Institute of Ultrasound in Medicine

JOURNAL ARTICLE

Serial pulsatility index measurements in renal grafts before, during, and after episodes of urinary obstruction

O. J. Salgado, M. G. Martin, B. Urdaneta, R. Garcia and B. Rodriguez-Iturbe
Center of Experimental Surgery, University of Zulia, Maracaibo, Venezuela.

The usefulness of pulsatility index determinations for the diagnosis of obstructive collecting system dilatation was investigated in 10 renal transplant patients whose grafts developed urinary obstruction from different causes. For this purpose we compared pulsatility index values obtained (1) before the ultrasonographic detection of obstruction or baseline study, (2) 1 day before surgical repair, and (3) within 2 weeks after surgery. In 7 of 10 obstructed grafts, the pulsatility index values were increased only mildly to moderately preoperatively. In the remaining three grafts, a mild decrease in pulsatility index was observed in spite of severe collecting system dilatation. Changes in pulsatility index were not statistically significant. Impedance measurements appeared not to be useful for diagnosing obstructive collecting system dilatation.


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G. A. Bateman and R. Cuganesan
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Am. J. Roentgenol., April 1, 2002; 178(4): 921 - 925.
[Abstract] [Full Text] [PDF]


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Copyright © 1999 by the American Institute of Ultrasound in Medicine.