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Clinical Challenges in Otolaryngology
February 1999

Current Status of ABR Audiometry in Acoustic Neuroma Diagnosis

Author Affiliations
 

KAREN H.CALHOUNMDRONALD B.KUPPERSMITHMD

Arch Otolaryngol Head Neck Surg. 1999;125(2):235. doi:10.1001/archotol.125.2.235

The question of whether ABR audiometry is useful in diagnosing acoustic neuromas is an interesting one that I am frequently asked by practicing otolaryngologists. When ABR audiometry was developed, many came to depend on it as the primary screening tool for the detection of acoustic neuromas. Before the development of MRI, ABR audiometry was the most accurate of noninvasive tests. Computed cranial tomography with contrast injection did not detect approximately 30% of acoustic neuromas. Only tumors that projected more than 5 mm into the cerebellopontine angle were regularly detected. We used ABR audiometry frequently and then confirmed the results using air-contrast computed tomography when the results of ABR audiometry were positive for acoustic neuroma.

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