[PDF] Top 20 Hyperacute Ischemic Stroke Missed by Diffusion Weighted Imaging
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Hyperacute Ischemic Stroke Missed by Diffusion Weighted Imaging
... A 72-year-old white woman was transferred to our hospital for further management of unstable angina, with complaints of burning in the throat radiating to the left arm. The patient had reported similar symptoms for ... See full document
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Turbo spin echo diffusion weighted MR of ischemic stroke
... of stroke have been limited until recently, little emphasis has been put on the emergency diagnosis of cerebral infarction; however, owing to recent advances in knowledge about the pathophysiology of events lead- ... See full document
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Benefits of Perfusion MR Imaging Relative to Diffusion MR Imaging in the Diagnosis and Treatment of Hyperacute Stroke
... reading diffusion and perfusion MR images retrospectively reviewed the ultra- fast MR ...on diffusion and perfusion MR images and those that showed abnormalities on perfusion MR images ...only. ... See full document
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Diffusion weighted Imaging Patterns of Brain Damage Associated with Cerebral Venous Thrombosis
... in ischemic cell ...quantitative diffusion-weight- ed imaging could be useful for establishing a threshold for permanent neurologic injury and thus help in selecting those patients who will benefit ... See full document
8
Application of acute stroke imagingSelecting patients for revascularization therapy
... acute ischemic stroke; BBB⫽ blood–brain barrier; CBF ⫽ cerebral blood flow; CBV ⫽ cerebral blood volume; CTA ⫽ CT angiography; CTP ⫽ CT perfusion; DWI ⫽ diffusion-weighted imaging; ET ⫽ ... See full document
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Arterial Hyperintensity on Fast Fluid attenuated Inversion Recovery Images: A Subtle Finding for Hyperacute Stroke Undetected by Diffusion weighted MR Imaging
... MR imaging does not show the early temporal sensitivity of the diffusion sequence in stroke patients within 6 hours after onset ...reviewed diffusion-weighted and FLAIR images in ... See full document
5
Reversed Discrepancy between CT and Diffusion Weighted MR Imaging in Acute Ischemic Stroke
... A stroke neurologist assessed baseline, acute (days 1 and 7), and chronic (day 90) clinical data using the modified Rankin Score (mRS), and then compared for patients with and without ...after stroke was ... See full document
6
False negative Diffusion weighted MR Findings in Acute Ischemic Stroke
... MR imaging) for lesions located in the anterior circulation and for those of the posterior circulation ...vertebrobasilar stroke imaged within 24 hours were compared in terms of spatial distribution and ... See full document
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Assessment of Transient Ischemic Attack with Diffusion and Perfusion Weighted Imaging
... prior ischemic strokes, known left internal carotid artery (ICA) occlusion despite of bilateral carotid endarterectomy, prior CABG, pe- ripheral vascular disease and ...MR imaging, obtained 7 hours after ... See full document
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Contribution of Diffusion Weighted Imaging in Determination of Stroke Etiology
... apparent diffusion coefficients (ADCs) were calculated for each pixel and composed in an ADC ...DW imaging, we also reviewed the ADC map and noted whether high-signal-intensity areas on the b1000 im- age ... See full document
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Prediction of Hemorrhagic Transformation in Acute Ischemic Stroke: Role of Diffusion Weighted Imaging and Early Parenchymal Enhancement
... HT was defined and classified into four subtypes, as previ- ously described (3, 14, 25): hemorrhagic infarct type 1, which was small petechiae along the margins of the infarct; hemor- rhagic infarct type 2, which was ... See full document
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The Need for Objective Assessment of the New Imaging Techniques and Understanding the Expanding Roles of Stroke Imaging
... sion-weighted imaging and spectroscopy have been reported to be associated with a CBF threshold above the ischemic range (ie, ...of diffusion MR imaging in global ischemia, Busza et al ... See full document
6
Quantitative Diffusion Weighted MR Imaging in Transient Ischemic Attacks
... DW imaging, we were able to detect decreases in the range of 9% to 26% in patients with TIA who had negative conven- tional DW ...measurable diffusion decline but not to a degree to cause visible lesions on ... See full document
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Various Patterns of Perfusion Weighted MR Imaging and MR Angiographic Findings in Hyperacute Ischemic Stroke
... acute ischemic stroke (1), comprehensive determination of the origin and pathophysiology of an individual stroke is not easy during the limited therapeutic window that is ...acute ischemic ... See full document
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Sensitivity and Interrater Agreement of CT and Diffusion Weighted MR Imaging in Hyperacute Stroke
... The temporal development of EIS on CT scans and DW imaging signal intensity changes depends strongly on the severity of the ischemia. Occlusion of the ICA bifurcation and MCA trunk occlusions result in severe ... See full document
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Susceptibility Weighted Imaging in Acute Stroke with Co-morbids: Magnetic Resonance Imaging Protocol Revisited
... Kaya et al. [10] recognized multiple hypointense vessels noticeably during hyperacute phase of stroke in the ischemic territory on gradient T2* [10] but Haacke et al. [11] worked on high resolution ... See full document
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SCL20A2 mutation presenting with acute ischemic stroke: a case report
... Health Stroke Scale (NIHSS) was 11 ...resonance imaging (MRI) revealed acute ischemic stroke in bilateral basal ganglia and periventricular regions with hyperin- tense signal in ... See full document
6
High b Value Diffusion Weighted MR Imaging of Hyperacute Ischemic Stroke at 1 5T
... DW imaging, especially in its early stage (10, ...DW imaging or to mild diffusion change within the ...vertebrobasilar ischemic stroke had a false-negative initial DW image during the ... See full document
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Diffusion Weighted MR Imaging in the Acute Phase of Transient Ischemic Attacks
... on diffusion-weighted ...on diffusion-weighted im- ages and those who show infarcts only in two thirds of ...MR imaging pattern similar to that seen in patients with estab- lished ... See full document
7
Evolution of Unilateral Perinatal Arterial Ischemic Stroke on Conventional and Diffusion Weighted MR Imaging
... The results from DWI are summarized in Fig 8. All DWIs showed high SI in the white matter until day 4 after birth. Thereafter, the SI on DWI was lower, and all SIs were equal to or below those of the contralateral ... See full document
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