Neuroimaging clinics of North America
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Neuroimaging Clin. N. Am. · Feb 2023
ReviewThe Changing Epidemiology of Central Nervous System Infection: Can Radiologists Keep Up?
Diagnostic radiologists can increase their clinical value by supplementing image pattern recognition with knowledge of epidemiology and geographic distribution of central nervous system (CNS) infections and their causative organisms. This article reviews the changing global disease patterns, as well as zoonotic outbreaks of henipaviruses, coronaviruses, and other emerging, reemerging, and vector-borne organisms; case examples highlight typical imaging features of CNS infections and their mimics. Technical advances in neuroimaging help to enhance the value of radiologists to the multidisciplinary team and the responses to future pandemic preparation.
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MR imaging is essential in diagnosing viral encephalitis. Clinical features, cerebrospinal fluid analysis and pathogen confirmation by polymerase chain reaction can be supported by assessing imaging features. ⋯ In this article, we have reviewed representative viral encephalitis and its MR imaging patterns. In addition, we also presented acute viral encephalitis without typical MR imaging patterns, such as dengue and varicella-zoster virus encephalitis.
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The complex anatomy and deep spaces of the head and neck limit physical examination while also offering many points for entry and spread of infection. Radiologic imaging plays a crucial role in managing head and neck infections by defining the location and extent of disease, facilitating abscess drainage, and identifying complications. This review provides essential background and examples for imaging infection throughout the head and neck region.
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Neuroimaging Clin. N. Am. · Feb 2023
ReviewAcute Neurological Complications of Coronavirus Disease.
The coronavirus disease (COVID-19) pandemic has impacted many lives globally. Neurologic manifestations have been observed among individuals at various stages and severity of the disease, the most common being stroke. Prompt identification of these neurologic diagnoses can affect patient management and prognosis. This article discusses the acute neuroradiological features typical of COVID-19, including cerebrovascular disease, intracerebral hemorrhage, leukoencephalopathy, and sensory neuropathies.