Hostname: page-component-848d4c4894-sjtt6 Total loading time: 0 Render date: 2024-06-23T05:47:13.006Z Has data issue: false hasContentIssue false

Outcome of using magnetic resonance imaging as an initial screen to exclude vestibular schwannoma in patients presenting with unilateral tinnitus

Published online by Cambridge University Press:  29 June 2007

P. J. D. Dawes*
Affiliation:
Department of Otolaryngology, Sunderland Royal Infirmary, Tyne and Wear, UK.
H. E. Basiouny
Affiliation:
Department of Otolaryngology, Sunderland Royal Infirmary, Tyne and Wear, UK.
*
Address for correspondence: Mr P. J. D. Dawes, ENT Department, Dunedin Hospital, 201 Great King Street, Dunedin, New Zealand. Fax: 0064 3 4747956

Abstract

The improved cost-effectiveness of gadolinium-enhanced magnetic resonance imaging (MRIg) as a diagnostic tool for vestibular schwannoma has resulted in smaller tumours being diagnosed. There has been a change in the clinical presentation of these tumours and up to four per cent may present with unilateral tinnitus. The limitation of auditory brain stem response (ABR) as a screening tool that detects small tumours is recognized and there is a strong argument for using MRIg as the initial investigation.

Various screening guidelines have been proposed, some include submitting patients with unilateral tinnitus for MRIg. This report describes the findings in a group of 174 patients presenting with unilateral tinnitus who underwent MRIg as part of a guideline-directed screen to exclude vestibular schwannoma. Five patients had a cause for their tinnitus diagnosed, one a vestibular schwannoma. Two had intracranial aneurysms and another three had pathology revealed that merited onward referral. A further nine patients had incidental findings that neither accounted for their symptoms nor needed further investigation or referral.

The rationale for screening these patients with MRIg is discussed.

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Barrs, D. M., Brackmann, D. E., Olson, J. E., House, W. F. (1985) Changing concepts of acoustic neuroma diagnosis. Archives of Otolaryngology 111: 1721.Google Scholar
Carpentier, J., Lynch, N., Fisher, A., Hughes, D., Willat, D. (1996) MR imaged neurovascular arrangements at the cerebellopontine angle. Clinical Otolaryngology 21: 312316.Google Scholar
Carrier, D. A., Arriaga, M. A. (1997) Cost-effective evaluation of asymmetric sensorineural hearing loss with focused magnetic resonance imaging. Otolaryngology, Head and Neck Surgery 116: 567574.Google Scholar
Chandrasekhar, S. S., Brackmann, D. E., Devgan, K. K. Z. (1995) Utility of auditory brainstem response audiometry in diagnosis of acoustic neuromas. American Journal of Otology 16: 6367.Google Scholar
Dawes, P. J. D., Jeannon, J. P. (1998) Audit of regional screening guidelines for vestibular schwannoma. Journal of Laryngology and Otology 112: 860864.CrossRefGoogle ScholarPubMed
Dornhoffer, J. L., Helms, J., Huchmann, D. H. (1994) Presentation and diagnosis of small acoustic tumours. Otolaryngology – Head and Neck Surgery 111: 232235.Google Scholar
Dornhoffer, J. L., Helm, J., Hoehmann, D. H. (1995) Hearing preservation in acoustic tumour surgery: results and prognostic factors. Laryngoscope 105: 184187.CrossRefGoogle ScholarPubMed
Fisher, E. W., Parikh, A. A., Harcourt, J. P., Wright, A. (1994) The burden of screening for acoustic neuroma: asymptomatic otological symptoms in the ENT clinic. Clinical Otolaryngology 19: 1921.Google Scholar
Gordon, M. L., Cohen, N. L. (1995) Efficacy of auditory brainstem response as a screening test for small acoustic neuromas. American Journal of Otology 16: 136139.Google Scholar
Hazell, J. (1998) Assessment and aspects of tinnitus. In Diseases of the Ear, 6th Edition, (Ludman, H., Wright, T., eds.) Arnold, London, pp. 196202.Google Scholar
Heiskanen, O., Poranen, A. (1987) Surgery of incidental intracranial aneurysms. Surgical Neurology 28: 432436.CrossRefGoogle ScholarPubMed
Makins, A. E., Nikolopoulos, T. P., Ludman, C., O'Donoghue, G. M. (1998) Is there a correlation between vascular loops and unilateral auditory symptoms? Laryngoscope 108: 17391742.Google Scholar
Mangham, C. (1997) Expert opinion on the diagnosis of acoustic tumours. Otolaryngology – Head and Neck Surgery 117: 622627.CrossRefGoogle Scholar
Moffat, D. A., Hardy, D. G. (1989) Early diagnosis and surgical management of acoustic neuroma: is it cost effective? Journal of the Royal Society of Medicine 82: 329332.CrossRefGoogle ScholarPubMed
Morrison, G. A. J., Sterkers, J. M. (1996) Unusual presentation of acoustic tumours. Clinical Otolaryngology 21: 8083.CrossRefGoogle ScholarPubMed
Ravi, K. V., Wells, S. C. (1996) A cost effective screening protocol for acoustic neuroma screening in the late 1990s. Journal of Laryngology and Otology 110: 11291132.Google Scholar
Robson, A. K., Leighton, S. E., Anslow, P., Milford, C. A. (1994) MRI as a single screening procedure for acoustic neuroma: a cost effective protocol. Journal of the Royal Society of Medicine 86: 455457.Google Scholar
Saeed, S. R., Woolford, T. J., Ramsden, R. T., Lye, R. H. (1995) Magnetic resonance imaging: a cost effective first line investigation in the detection of vestibular schwannoma. British Journal of Neurosurgery 4: 497503.Google Scholar
Shelton, C., Brackmann, D. E., House, W. F., Hitselberger, W. E. (1989) Acoustic tumour surgery: prognostic factors in hearing conservation. Archives of Otolaryngology – Head and Neck Surgery 115: 12131216.Google Scholar
Sheppard, I., Milford, C., Anslow, P. (1996)MRI in the detection of acoustic neuroma – a suggested protocol for screening. Clinical Otolaryngology 21: 301304.CrossRefGoogle ScholarPubMed
Sismanis, A., Smoker, W. R. K. (1994) Pulsatile tinnitus: recent advances in diagnosis. Laryngoscope 104: 681688.Google Scholar
Stack, J. P., Ramsden, R. T., Anton, N. M., Lye, R. H., Sheppard, I., Jenkins, J. P. R. (1988) Magnetic resonance imaging of acoustic neuromas: the role of gadolinium DTPA. British Journal of Radiology 61: 800805.Google Scholar
Welling, D. B., Glasscock, M. E., Woods, C. I., Jackson, C. G. (1990) Acoustic neuroma: a cost effective approach. Otolaryngology – Head and Neck Surgery 103: 364370.Google Scholar
Wilson, D. F., Hodgson, R. S., Gustafson, M. F., Hoque, S., Mills, L. (1992) The sensitivity of auditory brainstem testing in small acoustic neuromas. Laryngoscope 102: 961964.Google Scholar
Zappia, J. J., O'Connor, C. A., Wiet, R. J., Dinces, E. A. (1997) Rethinking the use of auditory brainstem response in acoustic neuroma screening. Laryngoscope 107: 13881392.Google Scholar