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Related Experiment Videos

Detection of obstructive uropathy by bone scintigraphy.

H T Haden1, P G Katz, K F Konerding

  • 1Nuclear Medicine Service, Hunter Holmes McGuire Veterans Administration Medical Center, Richmond, Virginia 23249.

Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine
|November 1, 1988
PubMed
Summary

Persistent radiotracer retention in the renal collecting system on upright bone scintigraphy reliably indicates obstructive uropathy. However, post-diuretic renal washout after bone scans is not a dependable method for detecting this condition.

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Area of Science:

  • Nuclear Medicine
  • Urology
  • Radiology

Background:

  • Bone scintigraphy is a common nuclear medicine procedure.
  • Renal collecting system radiotracer retention can be an incidental finding.
  • Obstructive uropathy requires accurate diagnosis for timely intervention.

Purpose of the Study:

  • To determine the prevalence of radiotracer retention in the renal collecting system during routine bone scintigraphy.
  • To assess the reliability of this finding as an indicator of obstructive uropathy.
  • To evaluate the utility of post-diuretic renal washout after bone scintigraphy.

Main Methods:

  • Prospective evaluation of routine bone scintigraphs.
  • Inclusion of upright imaging to exclude positional stasis.

Related Experiment Videos

  • Comparison of bone scintigraphy findings with renal sonography and other diagnostic studies.
  • Measurement of post-diuretic renal washout.

    • Main Results:

    • Persistent pelvicaliceal concentration in upright bone scintigraphy images correlated with obstructive uropathy.
    • Renal sonography confirmed obstructive uropathy in patients with persistent retention.
    • Post-diuretic renal washout after bone scintigraphy was not a reliable indicator of obstructive uropathy and could be misleading.

    Conclusions:

    • Persistent renal pelvicaliceal concentration on upright bone scintigraphy is a reliable indicator of obstructive uropathy.
    • Post-diuretic renal washout measurement following bone scintigraphy is not a reliable method for diagnosing obstructive uropathy.
    • Findings suggest that incidental radiotracer retention on bone scans warrants further urological investigation.