Otolaryngologic clinics of North America
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Otolaryngol. Clin. North Am. · May 1988
ReviewImaging modalities for the study of the temporal bone.
During the past 30 years, rapid and extensive progress has been made in diagnostic imaging of the petrous temporal bone, especially in the techniques of complex motion (pluridirectional) tomography, computed tomography, and magnetic resonance imaging. Because there are a variety of imaging techniques for evaluation of the petrous temporal bone, it is essential to utilize the optimal examinations. Economic factors and the need to reduce unnecessary radiation exposure for the patient are both important considerations.
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The most common serious consequences of trauma to the temporal bone are hearing loss and facial nerve paralysis. In order to prevent these sequelae, radiologic evaluation is often necessary. CT offers specific information about the extent of injury, including the presence of bony fragments that need removal in order to free the facial nerve.