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Related Experiment Video

Updated: Jun 24, 2026

Thermal Measurement Techniques in Analytical Microfluidic Devices
08:29

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Published on: June 3, 2015

Monothermal caloric screening test performance: a relative operating characteristic curve analysis.

Owen D Murnane1, Faith W Akin, Susan G Lynn

  • 1Vestibular Research Laboratory, James H. Quillen VA Medical Center, Mountain Home, Tennessee 37684, USA. owen.murnane@med.va.gov

Ear and Hearing
|March 27, 2009
PubMed
Summary

The monothermal warm screening test (MWST) accurately predicts vestibular assessment results, reducing testing time without compromising sensitivity. This method efficiently identifies patients needing further evaluation.

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Area of Science:

  • Vestibular system diagnostics
  • Otolaryngology research
  • Clinical audiology

Background:

  • The alternate binaural bithermal (ABB) caloric test is a standard for vestibular assessment.
  • Screening tests can potentially reduce the time and resources required for comprehensive vestibular evaluation.

Purpose of the Study:

  • To evaluate the diagnostic performance of the monothermal caloric screening test.
  • To compare the accuracy of monothermal warm (MWST) and cool (MCST) screening tests against the ABB caloric test.

Main Methods:

  • Retrospective analysis of 1002 patient records undergoing vestibular assessment.
  • Exclusion of patients with incomplete data, specific nystagmus types, or bilateral vestibular loss.
  • Use of relative operating characteristic curves to assess the predictive accuracy of MWST and MCST for unilateral weakness (UW) based on interear difference (IED).

Main Results:

  • Both MWST and MCST demonstrated performance significantly above chance.
  • MWST showed superior performance compared to MCST for three of four ABB gold standards.
  • A 10% IED cutoff for MWST resulted in low false-negative rates (1-3%) and could reduce ABB test performance by 40%.

Conclusions:

  • The monothermal warm screening test (MWST) is an effective tool for vestibular assessment.
  • MWST significantly decreases testing time while maintaining the sensitivity of the ABB caloric test.