Computed tomography in E.N.T. practice

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Abstract
The radiological service for otorhinolaryngology in a British subregional center was altered by the availability of a general purpose CT [computed tomography] scanner. Two years'' experience with the scanner is reviewed with an attempt to assess how aspects of the improved imaging affected management of patients. The greatest benefit was in the demonstration of lesions in the perinasal region and CT is now the next investigation of choice after plain sinus films, virtually replacing conventional tomography. CT has little to offer at present for the management of laryngeal lesions, and multidirectional tomography is still the most important means of investigating the temporal bone, despite the difficulty in interpreting the thin low-contrast sections. A simple protocol for the investigation of acoustic neuromas, and a means of certainly excluding the presence of one by demonstrating the structures within the internal auditory meatus, is described.

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