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Total 2908 results found since Jan 2013.

Causes of Death in Endovascularly Treated Patients with Acute Stroke INTERVENTIONAL
CONCLUSIONS: Cerebrovascular causes in patients with stroke play a major role in the intrahospital causes of death and reasons for palliation. Considering the large proportion of secondarily palliative–treated patients, reasons for palliation should be considered instead of causes of death to avoid concealment by, for example, life-terminating measures.
Source: American Journal of Neuroradiology - September 7, 2022 Category: Radiology Authors: Nagel, H., Pinho, J., Hasan, D., Ridwan, H., Habib, P., Schulz, J. B., Wiesmann, M., Reich, A., Nikoubashman, O. Tags: INTERVENTIONAL Source Type: research

Alterations of static and dynamic functional network connectivity in acute ischemic brainstem stroke
CONCLUSION: This study suggests that static and dynamic FNC impairment and aberrant connections exist in acute brainstem ischemic stroke, which expands what is known regarding the relationship between stroke and FNC from static and dynamic perspectives.PMID:36113019 | DOI:10.1177/02841851221127271
Source: Acta Radiologica - September 16, 2022 Category: Radiology Authors: Jian Zhang Yi Chang Source Type: research

Nonstenotic Carotid Plaques and Embolic Stroke of Undetermined Source: A Multimodality Review EXTRACRANIAL VASCULAR
Symptomatic nonstenotic carotid artery disease has been increasingly recognized as a thromboembolic source in patients who would otherwise be classified as having embolic stroke of undetermined source. Evidence suggests that certain plaque features seen on sonography, CT, and MR imaging in nonstenotic carotid artery disease may predispose to recurrent stroke in patients with embolic stroke of undetermined source. We performed a focused literature review to further study plaque features in the context of embolic stroke of undetermined source and to determine which plaque features may be associated with ipsilateral ischemic ...
Source: American Journal of Neuroradiology - February 1, 2023 Category: Radiology Authors: Larson, A. S., Brinjikji, W., Lekah, A., Klaas, J. P., Lanzino, G., Huston, J., Saba, L., Benson, J. C. Tags: EXTRACRANIAL VASCULAR Source Type: research

Intracranial Spotty Calcium Predicts Recurrent Stroke in Patients with Symptomatic Intracranial Atherosclerotic Stenosis
ConclusionIn patients with symptomatic ICAS, intracranial spotty calcium is an independent predictor of recurrent ischemic stroke, which will further facilitate risk stratification and suggest that more aggressive treatment should be considered for these patients.
Source: Klinische Neuroradiologie - June 7, 2023 Category: Radiology Source Type: research

Intracranial Atherosclerotic Plaque Enhancement in Patients with Ischemic Stroke BRAIN
CONCLUSIONS: Strong pathologic enhancement of intracranial atherosclerotic plaque was seen in all patients imaged within 4 weeks of ischemic stroke in the vessel supplying the stroke territory. The strength and presence of enhancement of the atherosclerotic plaque decreased with increasing time after the ischemic event. These findings suggest a relationship between enhancing intracranial atherosclerotic plaque and acute ischemic stroke.
Source: American Journal of Neuroradiology - February 13, 2013 Category: Radiology Authors: Skarpathiotakis, M., Mandell, D. M., Swartz, R. H., Tomlinson, G., Mikulis, D. J. Tags: BRAIN Source Type: research

Comparing different analysis methods for quantifying the MRI amide proton transfer (APT) effect in hyperacute stroke patients
In this study, the widely used asymmetry analysis and a model‐based analysis were both assessed on APT data collected from healthy subjects (n = 2) and hyperacute stroke patients (n = 6, median imaging time after onset = 2 hours 59 minutes). It was found that the model‐based approach was able to quantify the APT effect with the lowest variation in grey and white matter (≤ 13.8 %) and the smallest average contrast between these two tissue types (3.48 %) in the healthy volunteers. The model‐based approach also performed quantitatively better than the other measures in the hyperacute stroke patient APT data, where the...
Source: NMR in Biomedicine - June 1, 2014 Category: Radiology Authors: Y. K. Tee, G. W. J. Harston, N. Blockley, Thomas W. Okell, J. Levman, F. Sheerin, M. Cellerini, P. Jezzard, J. Kennedy, S. J. Payne, M. A. Chappell Tags: Research article Source Type: research

The usefulness of diffusion-weighted/fluid-attenuated inversion recovery imaging in the diagnostics and timing of lacunar and nonlacunar stroke
Conclusions The presence of acute ischemic lesions only in DWI can help to identify both lacunar and nonlacunar stroke patients who are in the 4.5 h time window for intravenous thrombolysis with high specificity.
Source: Neuroradiology - September 30, 2014 Category: Radiology Source Type: research

Clinical and imaging features associated with intracranial internal carotid artery calcifications in patients with ischemic stroke
Conclusion ICAC burden reflects a continuum of atherosclerotic disease involving carotid arteries together with other craniocervical vascular beds. ICAC is significantly associated with stroke of large vessel or cardioembolic origin. This information might help the clinician in prioritizing etiologic work-up in the acute period.
Source: Neuroradiology - January 30, 2015 Category: Radiology Source Type: research

Statin Therapy Does Not Affect the Radiographic and Clinical Profile of Patients with TIA and Minor Stroke EDITOR'S CHOICE
CONCLUSIONS: Prestroke or early-stroke statin therapy was not associated with a reduction in the number of DWI lesions, infarct volume, or improved clinical or functional outcome at 3 months. The effect of acute statin treatment in patients with ischemic stroke/TIA remains unclear and needs further investigation.
Source: American Journal of Neuroradiology - June 11, 2015 Category: Radiology Authors: Asdaghi, N., Coulter, J. I., Modi, J., Camden, M. C., Qazi, A., Goyal, M., Rundek, T., Coutts, S. B. Tags: EDITOR ' S CHOICE Source Type: research

Non-stenotic intracranial arteries have atherosclerotic changes in acute ischemic stroke patients: a 3T MRI study
Conclusion In patients with acute ischemic stroke, wall thickening and positive remodeling are evident in non-stenotic intracranial arteries. This change is more definite in stroke subtype that is related to atherosclerosis than that in other subtypes which are not.
Source: Neuroradiology - July 22, 2015 Category: Radiology Source Type: research

Can MRI quantification help evaluate stroke age?
Conclusions The quantification of MRI signal may be a helpful tool for stroke dating but cannot outperform the visual estimation of stroke lesion age.
Source: Journal of Neuroradiology - January 16, 2016 Category: Radiology Source Type: research

Are we armed with the right data? Pooled individual data review of biomarkers in people with severe upper limb impairment after stroke
Publication date: Available online 24 September 2016 Source:NeuroImage: Clinical Author(s): Kathryn S Hayward, Julia Schmidt, Keith R Lohse, Sue Peters MPT, Julie Bernhardt, Natasha A Lannin, Lara A Boyd To build an understanding of the neurobiology underpinning arm recovery in people with severe arm impairment due to stroke, we conducted a pooled individual data systematic review to: 1) characterize brain biomarkers; 2) determine relationship(s) between biomarkers and motor outcome; and 3) establish relationship(s) between biomarkers and motor recovery. Three electronic databases were searched up to October 2, 2015. Elig...
Source: NeuroImage: Clinical - September 23, 2016 Category: Radiology Source Type: research

Magnetic resonance imaging characteristics of ischemic stroke in an Afro-Caribbean population: A 1-year prospective MRI study on 534  consecutive patients
Conclusion Our prospective, consecutive, ischemic stroke series gives a comprehensive description of ischemic stroke imaging patterns and etiologic distributions in an Afro-Caribbean population with high socio-economic status. Our patients’ stroke characteristics are close to those of European-descent populations.
Source: Journal of Neuroradiology - November 8, 2016 Category: Radiology Source Type: research