Stroke with persisting false-negative diffusion-weighted imagings: A case report
نویسندگان
چکیده
منابع مشابه
False-negative diffusion-weighted MR findings in acute ischemic stroke.
BACKGROUND AND PURPOSE Lesions associated with acute stroke are often missed by diffusion-weighted imaging (DWI), suggesting that the sensitivity of this technique for detecting acute ischemic stroke may not be as high as initially thought. Our aim was to estimate the rate of false-negative DWI studies in patients with persistent neurologic deficit due to an ischemic stroke and to identify whic...
متن کاملCase Report of False-Negative Diffusion-Weighted Image of Brain Magnetic Resonance Imaging (MRI) in Acute Ischemic Stroke
BACKGROUND Acute ischemic stroke is a major cause of mortality and morbidity in Taiwan. Diffusion-weighted image (DWI) is a sensitive and common strategy used for imaging acute ischemic stroke. CASE REPORT We present a case of a negative DWI MRI for detecting acute ischemic stroke in a clinical setting. A 75-year-old male had a DWI performed after onset of symptoms suggesting acute ischemic str...
متن کاملFalse-negative diffusion-weighted imaging with lateral medullary infarction.
A 55-year-old1 man awoke with left ear pain, vertigo, vomiting, left facial numbness, and ataxic gait. MRI including diffusionweighted imaging (DWI) performed 2 hours later showed no evidence of acute infarction (figure, A). Repeat MRI 2 days later showed DWI and FLAIR changes consistent with a left lateral medullary infarction (figure, B). False-negative DWI has been reported in 5% of ischemic...
متن کاملDiffusion-negative MRI in acute ischemic stroke: a case report
BACKGROUND Diffusion-weighted magnetic resonance imaging is a very sensitive tool for the early diagnosis of acute ischemic stroke. This is employed in some stroke centers as the primary screening tool to select patients eligible for thrombolysis. METHODS We present the case of a 49-years old Chinese man whose diffusion-weighted magnetic resonance imaging performed 12 hours of symptom onset w...
متن کاملDiffusion-negative stroke: a report of two cases.
Diffusion-weighted MR imaging is generally thought to be highly sensitive for the diagnosis of acute stroke. We report two cases of hyperacute stroke with absence of changes on diffusion-weighted images within 4 hours of symptom onset. Follow-up studies, performed 4 days later, showed infarction in regions compatible with the clinical presentation and (in one case) with the initial perfusion de...
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ژورنال
عنوان ژورنال: Journal of Acute Disease
سال: 2020
ISSN: 2221-6189
DOI: 10.4103/2221-6189.276081