PMID: 6982654Sep 1, 1982Paper

Ct air-contrast scanning of the internal auditory canal

The Annals of Otology, Rhinology, and Laryngology
R AndersonS Schaefer

Abstract

Two hundred and four patients with audiometric and vestibular findings suggestive of a retrocochlear lesion were studied prospectively by computed tomographic scan with air contrast of the internal auditory canal. With this technique tumor limits are clearly defined. In the absence of disease the internal auditory canal has been completely air-filled in over 97% of cases. Soft tissue masses occluding the internal auditory canal were demonstrated in 11 patients. Four studies were inconclusive and there was one false positive. Headaches have been the only side effect and there have been no complications. In reporting their results the authors examined the indications, accuracy and limitations of this technique. This study demonstrates that computed tomographic scan with air contrast of the internal auditory canal should be considered as the radiologic procedure of choice for the evaluation of small acoustic tumors.

References

Mar 1, 1978·AJR. American Journal of Roentgenology·R A BakerS M Kaufman
Jul 1, 1977·Radiology·K R DavisA D Weiss
Mar 1, 1976·The Laryngoscope·F T Shaia, J L Sheehy
Mar 1, 1980·The Annals of Otology, Rhinology, and Laryngology·M TosJ Lester
Aug 1, 1964·Archives of Neurology·G DICHIRO, R L FISHER
Apr 1, 1962·Journal of Neurosurgery·M S MASON, J RAAF

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Citations

Jan 1, 1987·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·C A Mangham
Apr 1, 1985·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·D W JohnsonM L Wong
Mar 1, 1991·Journal of Neurosurgery·M E LinskeyA J Martinez

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