Acute Neurologic Syndromes Beyond Stroke

Sung, Edward; Farris, Chad; Abdalkader, Mohamad; Mian, Asim

doi:10.1016/j.nic.2018.03.012

Cited by 7 publications

(8 citation statements)

References 49 publications

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“…43 MRI is more sensitive and specific than CT for the detection of acute ischemia and is better at identifying stroke mimics, including infectious, inflammatory, tumoral, and traumatic conditions. 44,45 Diffusion-Weighted Imaging Using diffusion-weighted imaging (DWI), MRI can identify cerebral ischemia as early as a few minutes after the stroke onset. 46 The sensitivity of MRI to detect ischemic lesions is about 92% when performed at the time of symptom presentation, much higher than that of CT.…”

Section: Mrimentioning

confidence: 99%

Imaging of Central Nervous System Ischemia

Shulman¹,

Abdalkader²

2023

CONTINUUM: Lifelong Learning in Neurology

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OBJECTIVE: This article describes imaging modalities used in the evaluation of patients presenting with symptoms of acute ischemic stroke.LATEST DEVELOPMENTS: The year 2015 marked the beginning of a new era in acute stroke care with the widespread adoption of mechanical thrombectomy. Subsequent randomized controlled trials in 2017 and 2018 brought the stroke community even further into this new territory with the expansion of the eligibility window for thrombectomy using imaging-based patient selection, which led to an increase in the use of perfusion imaging. Now, after several years of routine use, the debate is ongoing as to when this additional imaging is truly required and when it results in unnecessary delays in time-sensitive stroke care. At this time, more than ever, a robust understanding of neuroimaging techniques, applications, and interpretation is essential for the practicing neurologist.ESSENTIAL POINTS: CT-based imaging is the first step in most centers for the evaluation of patients presenting with symptoms of acute stroke because of its wide availability, speed, and safety. Noncontrast head CT alone is sufficient for IV thrombolysis decision making. CT angiography is very sensitive for the detection of large-vessel occlusion and can be used reliably to make this determination. Advanced imaging including multiphase CT angiography, CT perfusion, MRI, and MR perfusion can provide additional information useful for therapeutic decision making in specific clinical scenarios. In all cases, it is essential that neuroimaging be performed and interpreted rapidly to allow for timely reperfusion therapy.

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Section: Mrimentioning

confidence: 99%

Imaging of Central Nervous System Ischemia

Shulman¹,

Abdalkader²

2023

CONTINUUM: Lifelong Learning in Neurology

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“…However, these changes initially appear as restricted diffusion (Fig. 6A), in the hyperacute phase, and diffusion changes rapidly normalize as T2 changes persist [57].…”

Section: Toxic Encephalopathiesmentioning

confidence: 99%

“…6B). DWI abnormalities in metronidazole toxicity involving the dentate nuclei typically have a bright ADC signal suggesting T2 shine through [57].…”

Section: Toxic Encephalopathiesmentioning

confidence: 99%

Clinical applications of diffusion-weighted sequence in brain imaging: beyond stroke

et al. 2021

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Diffusion-weighted imaging (DWI) is a well-established MRI sequence for diagnosing early stroke and provides therapeutic implications. However, DWI yields pertinent information in various other brain pathologies and helps establish a specific diagnosis and management of other central nervous system disorders. Some of these conditions can present with acute changes in neurological status and mimic stroke. This review will focus briefly on diffusion imaging techniques, followed by a more comprehensive description of the utility of DWI in common neurological entities beyond stroke.

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“…14). 15 Diffusion sequence plays an important role in confirming the diagnosis, as the pus shows strong diffusion restriction.…”

Section: Ischemic Strokementioning

confidence: 99%