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Total 5918 results found since Jan 2013.

Vessel Wall Enhancement on Black-Blood MRI Predicts Acute and Future Stroke in Cerebral Amyloid Angiopathy FUNCTIONAL
CONCLUSIONS: Vessel wall enhancement is associated with both acute and future stroke in patients with cerebral amyloid angiopathy.
Source: American Journal of Neuroradiology - June 10, 2021 Category: Radiology Authors: McNally, J. S., Sakata, A., Alexander, M. D., Dewitt, L. D., Sonnen, J. A., Menacho, S. T., Stoddard, G. J., Kim, S.- E., de Havenon, A. H. Tags: FUNCTIONAL Source Type: research

Definitive Diagnostic Evaluation of the Child With Arterial Ischemic Stroke and Approaches to Secondary Stroke Prevention
In children with arterial ischemic stroke (AIS), the definitive diagnosis of stroke subtype and confirmation of stroke etiology is necessary to mitigate stroke morbidity and prevent recurrent stroke. The common causes of AIS in children are sharply differentiated from the common causes of adult AIS. A comprehensive, structured diagnostic approach will identify the etiology of stroke in most children. Adequate diagnostic evaluation relies on advanced brain imaging and vascular imaging studies. A variety of medical and surgical secondary stroke prevention strategies directed at the underlying cause of stroke are available. T...
Source: Topics in Magnetic Resonance Imaging - October 1, 2021 Category: Radiology Tags: Review Articles Source Type: research

Large Culprit Plaque and More Intracranial Plaques Are Associated with Recurrent Stroke: A Case-Control Study Using Vessel Wall Imaging ADULT BRAIN
CONCLUSIONS: Large culprit plaque and more intracranial plaques were independently associated with recurrent stroke. Performing whole-brain vessel wall imaging may help identify patients with a higher risk of recurrent stroke.
Source: American Journal of Neuroradiology - February 4, 2022 Category: Radiology Authors: Wu, G., Wang, H., Zhao, C., Cao, C., Chai, C., Huang, L., Guo, Y., Gong, Z., Tirschwell, D. L., Zhu, C., Xia, S. Tags: ADULT BRAIN Source Type: research

Exact Basilar Artery Occlusion Location Indicates Stroke Etiology and Recanalization Success in Patients Eligible for Endovascular Stroke Treatment
ConclusionThe exact basilar artery occlusion site in patients eligible for endovascular stroke treatment reflects the stroke etiology and is associated with differing recanalization success but does not predict favorable clinical outcome.
Source: Klinische Neuroradiologie - December 2, 2022 Category: Radiology Source Type: research

Imaging of hemorrhagic stroke in magnetic induction tomography: An in vitro study
The objective of the article is to empirically investigate hemorrhagic stroke in MIT based on in vitro study and to improve stroke detectability and visibility to help monitoring stroke patients. The following approaches were evaluated: (i) level setting, (ii) improved spatial filtering, (iii) averaging of multiple measurements, (iv) the combinations of these three approaches, and (v) wavelet denoising. They were evaluated with an in vitro phantom resembling a cerebral stroke in a pig brain. The results showed that these approaches enhanced stroke visibility, lowered stroke detectability threshold from 15 ml to 5 ml, and i...
Source: International Journal of Imaging Systems and Technology - May 5, 2014 Category: Radiology Authors: Yasin Mamatjan Tags: Research Article Source Type: research

Impact of Age and Baseline NIHSS Scores on Clinical Outcomes in the Mechanical Thrombectomy Using Solitaire FR in Acute Ischemic Stroke Study EVIDENCE-BASED MEDICINE LEVEL 2
CONCLUSIONS: A significantly lower proportion of patients with a positive SPAN-100 achieved favorable outcome in this cohort. SPAN-100 was an independent predictor of favorable outcome after adjusting for time to treatment and the extent of preintervention tissue damage according to the Alberta Stroke Program Early CT Score.
Source: American Journal of Neuroradiology - July 15, 2014 Category: Radiology Authors: Almekhlafi, M. A., Davalos, A., Bonafe, A., Chapot, R., Gralla, J., Pereira, V. M., Goyal, M., on behalf of the STAR Registry Investigators Tags: EVIDENCE-BASED MEDICINE LEVEL 2 Source Type: research

Stroke Echoscan Protocol: A Fast and Accurate Pathway to Diagnose Embolic Strokes
CONCLUSIONThe Echoscan protocol was an accurate quick test, which reduced the length of stay and increased the percentage of severe AA plaque diagnosis.
Source: Journal of Neuroimaging - July 15, 2014 Category: Radiology Authors: Jorge Pagola, Teresa González‐Alujas, Marian Muchada, Gisela Teixidó, Alan Flores, Sophie De Blauwe, Laia Seró, David Rodríguez Luna, Marta Rubiera, Marc Ribó, Sandra Boned, José Álvarez‐Sabin, Arturo Evangelista, Carlos A. Molina Tags: Technology Update Source Type: research

Leukoaraiosis Predicts a Poor 90-Day Outcome after Endovascular Stroke Therapy EDITOR'S CHOICE
CONCLUSIONS: The severity of pre-existing leukoaraiosis is independently associated with 90-day functional outcome in patients with stroke who underwent endovascular stroke therapy. These results highlight the need to further explore leukoaraiosis as a promising surrogate marker for poor outcome after endovascular stroke therapy to improve risk assessment, patient selection, and early prognostic accuracy.
Source: American Journal of Neuroradiology - November 14, 2014 Category: Radiology Authors: Zhang, J., Puri, A. S., Khan, M. A., Goddeau, R. P., Henninger, N. Tags: EDITOR ' S CHOICE Source Type: research

Susceptibility-Weighted Imaging in Pediatric Arterial Ischemic Stroke: A Valuable Alternative for the Noninvasive Evaluation of Altered Cerebral Hemodynamics FELLOWS' JOURNAL CLUB
CONCLUSIONS: SWI-DTI mismatch predicts stroke progression in pediatric arterial ischemic stroke. SWI-hyperintense signal is not useful for predicting the development of malignant edema. SWI should be routinely added to the neuroimaging diagnostic protocol of pediatric arterial ischemic stroke.
Source: American Journal of Neuroradiology - April 10, 2015 Category: Radiology Authors: Polan, R. M., Poretti, A., Huisman, T. A. G. M., Bosemani, T. Tags: FELLOWS ' JOURNAL CLUB Source Type: research

Mobile stroke unit for prehospital stroke treatment.
Abstract CLINICAL ISSUE AND DIAGNOSTIC STANDARDS: The management of acute stroke patients suffers from several major problems in the daily clinical routine. In order to achieve optimal treatment a complex diagnostic work-up and rapid initiation of therapy are necessary; however, most patients arrive at hospital too late for any type of acute stroke treatment, although all forms of treatment are highly time-dependent according to the generally accepted "time is brain" concept. DIAGNOSTIC INNOVATIONS: Recently, two randomized clinical trials demonstrated the feasibility of prehospital stroke diagnostic work-up ...
Source: Der Radiologe - January 4, 2016 Category: Radiology Authors: Walter S, Grunwald IQ, Fassbender K Tags: Radiologe Source Type: research

Hypercapnic evaluation of vascular reactivity in healthy aging and acute stroke via functional MRI
Publication date: Available online 25 June 2016 Source:NeuroImage: Clinical Author(s): Ryan V. Raut, Veena A. Nair, Justin A. Sattin, Vivek Prabhakaran Functional MRI (fMRI) is well-established for the study of brain function in healthy populations, though its clinical application has proven more challenging. Specifically, cerebrovascular reactivity (CVR), which allows the assessment of the vascular response that serves as the basis for fMRI, has been shown to be reduced in healthy aging as well as in a range of diseases, including chronic stroke. However, the timing of when this occurs relative to the stroke event i...
Source: NeuroImage: Clinical - June 24, 2016 Category: Radiology Source Type: research

Diffusion weighted imaging and time in acute ischemic stroke, is there any relation?
Conclusion There is no correlation in our findings between the time of stroke symptom onset and the DWI-ASPECT score during the first 6hours from stroke onset.
Source: Journal of Neuroradiology - June 20, 2017 Category: Radiology Source Type: research

Duplex Sonographic Diagnosis of Perinatal Hemorrhagic Stroke.
Abstract Children are particularly at risk for stroke in the neonatal period. Neonatal hemorrhagic stroke is rarer than ischemic stroke. The incidence is 40.7/100 000 live births. Hemorrhagic stroke is caused by a disruption in venous drainage usually due to local thrombosis. As a result of the nonspecific clinical symptoms in this age group, diagnosis is usually made too late. The only relatively specific symptom is a cerebral seizure during the first week of life. Therefore, stroke should be ruled out by diagnostic imaging in the case of any seizure in the first days of life. The diagnostic method of choice is...
Source: Ultraschall in der Medizin - September 26, 2017 Category: Radiology Authors: Deeg KH Tags: Ultraschall Med Source Type: research

Reduced stroke distance of the left ventricular outflow tract is independently associated with long ‐term mortality, in patients hospitalized due to heart failure
ConclusionsStroke distance was associated with long‐term mortality, independently of other known echocardiographic prognostic factors in elderly patients hospitalized with heart failure. Only when stroke distance was excluded from analysis, LVEF became associated with mortality. Stroke distance had additive prognostic value.
Source: Clinical Physiology and Functional Imaging - January 1, 2018 Category: Radiology Authors: You Zhong, Qays Almodares, JieFu Yang, Fang Wang, Michael Fu, Magnus C. Johansson Tags: Original Article Source Type: research

Parietofrontal network upregulation after motor stroke
Publication date: Available online 7 March 2018 Source:NeuroImage: Clinical Author(s): M. Bönstrup, R. Schulz, G. Schoen, B. Cheng, J. Feldheim, G. Thomalla, C. Gerloff Objective Motor recovery after stroke shows a high inter-subject variability. The brain's potential to form new connections determines individual levels of recovery of motor function. Most of our daily activities require visuomotor integration, which engages parietal areas. Compared to the frontal motor system, less is known about the parietal motor system's reconfiguration related to stroke recovery. Here, we tested if functional connectivity among parie...
Source: NeuroImage: Clinical - March 8, 2018 Category: Radiology Source Type: research