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Value of passive whole-body rotation: a model-based approach

  • Holger A. RamboldEmail author
  • David Barthold
  • Stefano Ramat
Letter to the Editors

Dear Sirs,

The video-head-impulse test (vHIT) [1] and bithermal caloric irrigation (CI) [2] are routinely used for examining unilateral vestibular hypofunction of the horizontal vestibular-ocular reflex (VOR). Passive whole body rotation of the subject around an earth vertical axis on a rotatory chair is another method which not only tests the peripheral VOR, but also the central processing. The test depends on the velocity profile, the disease itself, the stage of the disease and on the cooperation and alertness of the patients. This kind of test has been applied for years, but the sensitivity to identify unilateral vestibular failure is low [3, 4]. These results are based on fitting the data using a single exponential (i.e. a first-order model), which provides an inaccurate description of the data [5]. We report here a first step to better describe the responses to the ‘rotatory intensity damping test’ (RIDT) with multiple parameters using a model of the VOR.

This retrospective study...

Notes

Acknowledgements

The authors thank U. Goetz and I. Ribarczyk for technical assistance.

Compliance with ethical standards

Conflicts of interest

The authors declare that they have no conflict of interest.

Ethical standards

All procedures performed in studies involving humans participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of NeurologyCounty Hospitals of Altötting and BurghausenAltöttingGermany
  2. 2.University of RegensburgRegensburgGermany
  3. 3.Department of Electrical, Computer and Biomedical EngineeringUniversity of PaviaPaviaItaly

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