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Related Experiment Videos

[Usefulness of the opposite direction for Stenvers' method].

Hirotoshi Maruyama1, Tadamitsu Ideguchi, Hiroki Ohura

  • 1Department of Radiology, National Kumamoto Hospital.

Nihon Hoshasen Gijutsu Gakkai Zasshi
|August 26, 2003
PubMed
Summary

The opposite Stenvers

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Area of Science:

  • Radiology
  • Otorhinolaryngology

Background:

  • Stenvers' method is a standard radiographic technique for the internal acoustic meatus and semicircular canals in otorthinolaryngology.
  • The conventional Stenvers' method requires a prone patient position, which can be challenging for individuals experiencing dizziness.
  • An alternative, the opposite Stenvers' method, allows radiography in a supine position, accommodating patients unable to tolerate prone positioning.

Purpose of the Study:

  • To evaluate potential drawbacks of the opposite Stenvers' method, specifically increased magnification and lens dose, compared to the conventional Stenvers' method.
  • To assess the clinical utility and diagnostic accuracy of the opposite Stenvers' method in otorthinolaryngology.

Main Methods:

  • Computed tomography (CT) and glass dosimeter measurements were used with phantom studies to quantify magnification and radiation dose.

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  • Clinical evaluations were performed to compare diagnostic outcomes between the two Stenvers' methods.
  • Statistical analysis was employed to determine the significance of observed differences.

    • Main Results:

    • No statistically significant differences were found between the conventional Stenvers' method and the opposite Stenvers' method regarding magnification rates.
    • Clinical evaluations revealed no significant difference in diagnostic outcomes between the two radiographic approaches.
    • The increase in lens dose associated with the opposite Stenvers' method was not statistically significant.

    Conclusions:

    • The opposite Stenvers' method is a viable and useful alternative for radiography of the internal acoustic meatus and semicircular canals when prone positioning is not feasible.
    • This method does not compromise diagnostic accuracy and presents no significant increase in radiation dose to the lens.