Neuroimaging clinics of North America
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Neuroimaging Clin. N. Am. · May 2016
ReviewImaging Interpretation of Temporal Bone Studies in a Patient with Tinnitus: A Systematic Approach.
Tinnitus is an auditory perception of internal origin. Tinnitus is not a diagnosis but a symptom with many possible causes and correspondingly divergent pathophysiologic, anatomic, diagnostic, and therapeutic considerations. This article provides a summary of the imaging findings of structural causes of tinnitus.
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Neuroimaging Clin. N. Am. · Feb 2016
Review Meta AnalysisClinical Perspective of Carotid Plaque Imaging.
At present, patients with carotid disease are selected for invasive recanalization therapies mainly based on the degree of luminal narrowing and the presence or absence of recent ischemic symptoms. A more sophisticated risk model takes into account other clinical variables, such as age, sex, and the type of recent symptoms, as well as presence of ulcerated plaque. A growing body of evidence shows that noninvasive imaging of the carotid plaque by various methods reliably identifies structural correlates of plaque vulnerability, which are associated with an increased risk of cerebrovascular events.
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Plaque imaging by MR imaging provides a wealth of information on the characteristics of individual plaque that may reveal vulnerability to rupture, likelihood of progression, or optimal treatment strategy. T1-weighted and T2-weighted images among other options reveal plaque morphology and composition. ⋯ Numerous approaches for analyzing such images have been developed, validated against histologic gold standards, and used in clinical studies. These efforts are summarized in this article.