Neuroimaging clinics of North America
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Recent changes in sinonasal imaging are a direct result of the development of functional endoscopic sinus surgery. Because of this technique, radiologists have noted an increased volume of sinus imaging, developed new imaging techniques, and are interpreting films in a different manner. This article covers the common variants seen on coronal computed tomography, discusses the complications of functional endoscopic sinus surgery, reviews the radiographic criteria for sinusitis, and addresses the role of computed tomography and magnetic resonance imaging in evaluating the sinonasal cavity.
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Ameliorated computed tomography techniques and new magnetic resonance sequences have led to an important improvement in temporal bone imaging. Computed tomography is still the method of choice for imaging of temporal bone fractures, middle ear disease, and conductive hearing loss, although magnetic imaging can add important information. ⋯ In some cases, however, such as congenital malformations and petrous apex lesions, magnetic resonance imaging and computed tomography are complementary. The value of both modalities is discussed.