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KMID : 0858620010050010036
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Korean Journal of Audiology
2001 Volume.5 No. 1 p.36 ~ p.40
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The Validity of Auditory Brainstem Response as the Screening Test of Vestibular Schwannomas
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김창훈/Chang Hoon Kim
조양선/정원호/김종현/박관/남도현/원은영/황수진/방은국/홍성화/Yang Sun Cho/Won Ho Chung/Jong Hyun Kim/Kwan Park/Do Hyun Nam/Eun Young Won/Su Jin Hwang/Eun Guk Bang/Sung Hwa Hong
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Abstract
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The ability of magnetic resonance imagine (MRI) to detect very small acoustic tumors has triggered many to rethink the use of auditory brainstem response (ABR) in the screening of vestibular schwannoms. To assess ABR accuracy, we conducted a
retrospective study of 85 biposy-proven vestibular schwannoma patients. Of these patients, 55 had ABR test and over sensitivity of ABR is 98%. There are two patients whose tumor size is smaller than 1.0 cm. Both of these patients had abnormal
results of
ABR. The universl use of MRI as the screening test of vestibular schwannomas is restricted by several factors such as cost and availability. With stict adherence to optimal technique and evaluation criteria, the ABR remains a valuable option for
vestibular schwannomas screening.
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