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Related Experiment Videos

Nasal transit time in normal subjects and pathologic conditions.

M Englender1, D Chamovitz, M Harell

  • 1Department of Pediatric Otolaryngology, Edith Wolfson Hospital, Holon, Israel.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|December 1, 1990
PubMed
Summary

This study used a technetium-99m (Tc-99m) radionuclide method to measure nasal transit time. The test effectively differentiates immotile cilia syndrome but can also yield positive results in smokers and those with other nasal conditions.

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Area of Science:

  • Nuclear medicine
  • Rhinology
  • Diagnostic imaging

Background:

  • Nasal transit time is a key indicator of mucociliary clearance.
  • Accurate measurement is crucial for diagnosing sinonasal diseases.
  • Existing methods may lack precision or accessibility.

Purpose of the Study:

  • To evaluate a modified Tc-99m radionuclide method for measuring nasal transit time.
  • To assess the test's ability to differentiate patients with immotile cilia syndrome.
  • To determine the test's reproducibility, cost-effectiveness, and noninvasiveness.

Main Methods:

  • A modified Tc-99m phytate radionuclide method was employed.
  • Nasal transit time was measured in 43 patients, including controls and those with sinonasal pathologies.

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  • The technique focused on precise droplet transit time measurement on nasal mucosa.

    • Main Results:

    • The Tc-99m method showed potential in differentiating immotile cilia syndrome from normal controls.
    • Positive test results were observed in smokers and patients with other nasal/paranasal issues.
    • The test demonstrated reproducibility and cost-effectiveness.

    Conclusions:

    • The modified Tc-99m nasal transit time test is a reproducible, cost-effective, and noninvasive diagnostic tool.
    • It aids in selecting patients who require further investigation for sinonasal conditions.
    • While effective for immotile cilia syndrome, results must be interpreted considering smoking and other pathologies.