Neuroimaging clinics of North America
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Neuroimaging Clin. N. Am. · Nov 2018
ReviewAdvanced Neuroimaging of Acute Ischemic Stroke: Penumbra and Collateral Assessment.
Acute ischemic stroke (AIS) occurs when there is a sudden loss in cerebral blood flow due to embolic or thromboembolic occlusion of a cerebral or cervical artery. Patients with AIS require emergent neuroimaging to guide treatment, which includes intravenous thrombolysis and endovascular mechanical thrombectomy (EMT). Recent advances in AIS treatment by EMT has been driven in part by advances in computed tomography (CT) and MR imaging neuroimaging evaluation of ischemic penumbra and pial collateral vessels. The authors review advanced noninvasive brain imaging by CT and MR imaging for the evaluation of AIS focusing on penumbral and collateral imaging.
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Neuroimaging Clin. N. Am. · Nov 2018
ReviewNeuro-Interventional Management of Acute Ischemic Stroke.
Restoration of cerebral blood flow is the most important step in preventing irreversible damage to hypoperfused brain cells after ischemic stroke from large-vessel occlusion. For those patients who do not respond to (or are not eligible for) intravenous thrombolysis, endovascular therapy has become standard of care. ⋯ At this time, one can reasonably anticipate that more patients will be treated, and that outcomes will keep improving. This article discusses in detail recent advances in endovascular stroke therapy.
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Neuroimaging Clin. N. Am. · Nov 2018
ReviewComputed Tomography, Computed Tomography Angiography, and Perfusion Computed Tomography Evaluation of Acute Ischemic Stroke.
This review outlines the current role of the individual components of multimodal computed tomography (computed tomography, computed tomography angiography, and perfusion computed tomography) in the evaluation of patients with acute ischemic stroke.
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Stroke is a major health burden worldwide with attendant mortality, morbidity, and cost. In 2010, there were approximately 16.9 million strokes and an estimated 33 million stroke survivors worldwide. ⋯ The staggering economic cost of the disease is driven largely by disability and long term care. Efforts in stroke healthcare delivery are focusing on performance, efficiency and value to better serve the consumer.
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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.