2012
DOI: 10.1016/j.emc.2012.06.005
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Neuroimaging in Acute Stroke

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Cited by 15 publications
(6 citation statements)
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“…The following sequences are typically included: diffusion weighted imaging (DWI), T2-weighted (T2W) and fluid-attenuated inversion recovery (FLAIR), MR angiography (MRA), perfusion-weighted imaging (PWI), and gradient-recalled echo (GRE). DWI sequence can detect acute ischemia within minutes of onset as a focal area of hyperintensity [34], while T2W and FLAIR can detect acute ischemia within the first 3–8 hours after onset. Noncontrast time-of-flight MRA is used to evaluate the intracranial arterial system.…”
Section: Disorders Of the Facial Nervementioning
confidence: 99%
See 1 more Smart Citation
“…The following sequences are typically included: diffusion weighted imaging (DWI), T2-weighted (T2W) and fluid-attenuated inversion recovery (FLAIR), MR angiography (MRA), perfusion-weighted imaging (PWI), and gradient-recalled echo (GRE). DWI sequence can detect acute ischemia within minutes of onset as a focal area of hyperintensity [34], while T2W and FLAIR can detect acute ischemia within the first 3–8 hours after onset. Noncontrast time-of-flight MRA is used to evaluate the intracranial arterial system.…”
Section: Disorders Of the Facial Nervementioning
confidence: 99%
“…PWI sequence with gadolinium contrast detects areas of the brain that have decreased cerebral blood flow but have not yet been severely injured. GRE sequences are tailored to be sensitive to the detection of iron products, thereby indicating the presence of prior hemorrhage [34]. …”
Section: Disorders Of the Facial Nervementioning
confidence: 99%
“…Non-contrast computed tomography (CT) scan is considered to be the "gold standard" for diagnosis of new ICH and detection of other forms of intracranial bleeding that may present concomitantly [13]. Magnetic resonance imaging (MRI) may also be beneficial in identifying microhemorrhages, and CT angiogram is sensitive in identifying secondary causes of intraparenchymal bleeding such as aneurysm rupture, vasculitis, intracranial malignancy, or arteriovenous malformations [14,15].…”
Section: Preoperative Diagnostics and Workupmentioning
confidence: 99%
“…the latter is associated with bio-energetic compromise and cytotoxic edema formation during an ischemic event. 25 Studies of tia patients utilizing dWi have demonstrated higher infarct detection rates in comparison to Ct. a prospective study of 22 tia patients found focal Ct changes in 7 (32%) patients, however using dWi, focal abnormalities were detected in as many as 17 (77%). 16 More recently, a study of 161 tia patients, who underwent both Ct and Mri, indicated focal Ct abnormalities in seven (4.3%) patients.…”
Section: Imaging Studies In Tia Patientsmentioning
confidence: 99%