Neuroimaging clinics of North America
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Neuroimaging Clin. N. Am. · Aug 2018
ReviewNeurologic Emergencies in Pediatric Patients Including Accidental and Nonaccidental Trauma.
This article summarizes common neurologic emergencies presenting in pediatric patients. Imaging techniques and appearances of specific conditions are detailed, including pearls and pitfalls for each presentation. Specific attention is given to differential diagnoses that can serve as mimickers of pediatric neurologic emergencies.
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Neuroimaging Clin. N. Am. · Aug 2018
ReviewEmergent Neuroimaging in the Oncologic and Immunosuppressed Patient.
Neuroimaging in the emergency department increasingly involves patients at increased risk for acute neurologic complications from malignancy and immunosuppression, including patients with organ transplantation, diabetes mellitus, treatment of chronic disease, and HIV positivity. These patients are susceptible to the same infections and emergencies as immunocompetent patients, but may present differently with common illnesses and are susceptible to a variety of other diseases. This article reviews important patient risk factors, emergent central nervous system abnormalities, and their imaging findings. Detailed knowledge of risk factors and specific complications in these complex patients is essential for optimal image acquisition, interpretation, diagnosis, and treatment.
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Neuroimaging Clin. N. Am. · Aug 2018
ReviewAcute Neurologic Syndromes Beyond Stroke: The Role of Emergent MR Imaging.
MR imaging with diffusion-weighted imaging has been essential in the evaluation of acute stroke but is also crucial for the diagnosis, treatment, and follow-up in patients with various nonischemic disorders, including infectious processes, trauma, toxic/metabolic disorders, and other abnormalities. This article reviews various disorders with diffusion abnormality that can be commonly seen in the emergency setting.
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Thunderclap headache is a common presentation in the emergency department and, although multiple causes have been described, subarachnoid hemorrhage (SAH) is the primary concern and early diagnosis is critical. CT is highly sensitive if performed within 6 hours of onset. ⋯ Further work-up should be guided by the pattern of blood. Patients with negative CT angiography may be further evaluated with MR imaging, especially patients with peripheral convexity SAH.
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Neuroimaging Clin. N. Am. · Aug 2018
ReviewBlunt Craniocervical Trauma: Does the Patient Have a Cerebral Vascular Injury?
Blunt cerebrovascular injury involves injury to the carotid and/or vertebral arteries sustained via generalized multitrauma or directed blunt craniocervical trauma. Stroke remains the most consequential outcome. ⋯ Discussion centers on the increasing reliance on multidetector computed tomography angiography for screening, considering relevant clinical criteria for determining screening. Imaging protocols, imaging findings, injury grading, pearls, and pitfalls are discussed.