Magnetic resonance imaging for the diagnosis of vestibular schwannoma – increasing cost-effectiveness and the diagnostic yield

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Abstract

Introduction: We aimed to assess whether MRI scans for screening of vestibular schwannoma (VS) are a cost effective tool and how best to maximise their positive yield.

Materials and Methods: We undertook a retrospective analysis of 1000 scans to assess the diagnostic yield and the sensitivity and specificity of four published protocols

Results: Of 756 patients included 8 patients were positively identified with a VS. If only patients who had either a 15dB or 20dB hearing loss at any single frequency underwent screening the number of negative scans would have been reduced by over 50%. No patients with unilateral tinnitus alone and normal hearing (8.6%) were diagnosed with VS.

Discussion: To reduce the burden of MRI scans all departments should scan in accordance with a published protocol.

Additional Info

  • Authors: Kumar S, Olaitan A, Danino J & Scott A
  • Keywords: Magnetic resonance imaging; vestibular schwannoma, internal acoustic meatus, unilateral tinnitus.
Read 1548 times Last modified on Tuesday, 02 February 2016 18:04

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