Intra- and interobsever reliability of sonographic assessment of the optic nerve sheath diameter
J Bäuerle, P Lochner, M Nedelmann, M Kaps · Klinische Neurophysiologie · 2010 · Heft 03
Bibliografische Angaben
Zusammenfassung
Purpose: The ultrasound-based evaluation of the optic nerve sheath diameter (ONSD) has been demonstrated to be useful for detecting raised intracranial pressure. In order to be feasible in clinical workup, the test qualities of transorbital ultrasonography need to be determined. The aim of this study was therefore to establish normal values and to assess the intra- and interobserver reliability of this method. Methods: Using a 9–3MHz linear array transducer, the ONSD of 40 healthy subjects was independently measured bilaterally by two investigators. Results: Depicting the optic nerve and its sheath was possible…