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Total 2908 results found since Jan 2013.

Inter-rater Variability for CT Angiography Evaluation between Neurologists and Neuroradiologist in Acute Stroke Patients.
CONCLUSION: Inter-rater agreement of CTA evaluation of occlusion between the neurologists and neuroradiologist was very strong. The ability of trained neurologists to read an intracranial large vessel occlusion correctly may improve door to needle times in acute stroke. Advances in knowledge: In this study, the neurologists were able to recognize occlusion of intracranial arteries. This could accelerate the management of the acute stroke care. PMID: 28118025 [PubMed - as supplied by publisher]
Source: The British Journal of Radiology - January 23, 2017 Category: Radiology Authors: Bar M, Kra J, Jonszta T, Marcian V, Kuliha M, Mikulík R Tags: Br J Radiol Source Type: research

Role of corpus callosum integrity in arm function differs based on motor severity after stroke
This study examined the relationship between structural integrity of the motor and sensory sections of the CC, as reflected by fractional anisotropy (FA), and motor function in individuals with a range of motor impairment level due to stroke. Fifty-five individuals with chronic stroke (Fugl-Meyer motor score range 14 to 61) and 18 healthy controls underwent diffusion tensor imaging and a set of motor behavior tests. Mean FA from the motor and sensory regions of the CC and from corticospinal tract (CST) were extracted and relationships with behavioral measures evaluated. Across all participants, FA in both CC regions was si...
Source: NeuroImage: Clinical - March 2, 2017 Category: Radiology Source Type: research

Diffusion tensor imaging as a prognostic biomarker for motor recovery and rehabilitation after stroke
ConclusionRecovery of motor function probably involves remodeling of the CST proper and/or a greater reliance on alternative motor tracts through spontaneous and treatment-induced plasticity. DTI-metrics represent promising clinical biomarkers to predict motor recovery and to monitor and predict the response to neurorehabilitative interventions.
Source: Neuroradiology - March 13, 2017 Category: Radiology Source Type: research

Synergistic but independent: The role of corticospinal and alternate motor fibers for residual motor output after stroke
Conclusions The structural states of the CST and also – to a smaller degree – of the aMF correlate with residual motor output in late subacute stroke patients. Based on this statistical modeling with all inherent limitations, the novel finding of an absence of a significant interaction between both tracts in regard of their functional role, suggests that both corticofugal pathways act synergistically but largely independently. These findings add to the understanding of the functional role of different corticofugal motor fibers and their interactions for motor output after stroke.
Source: NeuroImage: Clinical - April 19, 2017 Category: Radiology Source Type: research

Acute Stroke differential diagnosis: stroke mimics
Publication date: Available online 5 May 2017 Source:European Journal of Radiology Author(s): Pedro Vilela Stroke mimics (SM) are non-vascular conditions that present with an acute neurological deficit simulating acute ischemic stroke and represent a significant percentage of all acute stroke hospital admissions. The most common clinical SM includes conversion/functional (psychiatric disorder); seizures and postictal paralysis; toxic-metabolic disturbances; brain tumours; infections, and migraine. Imaging is essential for SM recognition, being Diffusion weighted imaging (DWI), perfusion imaging and angiographic studies ve...
Source: European Journal of Radiology - May 6, 2017 Category: Radiology Source Type: research

Age, Sex, and Racial Differences in Neuroimaging Use in Acute Stroke: A Population-Based Study ADULT BRAIN
CONCLUSIONS: Within a large, biracial stroke/TIA population, there is variation in the use of advanced neuroimaging by age and race, depending on the care center type.
Source: American Journal of Neuroradiology - October 6, 2017 Category: Radiology Authors: Vagal, A., Sanelli, P., Sucharew, H., Alwell, K. A., Khoury, J. C., Khatri, P., Woo, D., Flaherty, M., Kissela, B. M., Adeoye, O., Ferioli, S., De Los Rios La Rosa, F., Martini, S., Mackey, J., Kleindorfer, D. Tags: ADULT BRAIN Source Type: research

Resting-state connectivity and executive functions after pediatric arterial ischemic stroke
Conclusion Decreased interhemispheric connections after stroke in childhood may indicate a disruption of typical interhemispheric interactions relating to executive functions. The present results emphasize the relationship between functional organization of the brain at rest and cognitive processes.
Source: NeuroImage: Clinical - October 25, 2017 Category: Radiology Source Type: research

Endovascular Management of Acute Stroke in the Elderly: A Systematic Review and Meta-Analysis ADULT BRAIN
Conclusions: Good functional recovery in octogenarians treated with endovascular therapy for acute stroke can be achieved in a high proportion of patients despite the higher incidence of comorbidity in this cohort. Outcomes are inferior to those reported for younger patients; however, endovascular therapy can allow at least 1 in 4 patients older than 80 years of age to regain independent function at 3 months. More research is required to improve patient selection in the elderly, but age should not be a discriminator when deciding to offer endovascular therapy for patients with acute stroke.
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Hilditch, C. A., Nicholson, P., Murad, M. H., Rabinstein, A., Schaafsma, J., Pikula, A., Krings, T., Pereira, V. M., Agid, R., Brinjikji, W. Tags: ADULT BRAIN Source Type: research

Value of Quantitative Collateral Scoring on CT Angiography in Patients with Acute Ischemic Stroke ADULT BRAIN
CONCLUSIONS: Automated quantitative collateral scoring in patients with acute ischemic stroke is a reliable and user-independent measure of the collateral capacity on baseline CTA and has the potential to augment the triage of patients with acute stroke for endovascular therapy.
Source: American Journal of Neuroradiology - June 13, 2018 Category: Radiology Authors: Boers, A. M. M., Sales Barros, R., Jansen, I. G. H., Berkhemer, O. A., Beenen, L. F. M., Menon, B. K., Dippel, D. W. J., van der Lugt, A., van Zwam, W. H., Roos, Y. B. W. E. M., van Oostenbrugge, R. J., Slump, C. H., Majoie, C. B. L. M., Marquering, H. A. Tags: ADULT BRAIN Source Type: research

Multicentric Experience in Distal-to-Proximal Revascularization of Tandem Occlusion Stroke Related to Internal Carotid Artery Dissection INTERVENTIONAL
CONCLUSIONS: Endovascular treatment of internal carotid dissection–related tandem occlusion stroke using the distal-to-proximal recanalization strategy appears to be feasible, with low complication rates and considerable rates of successful recanalization.
Source: American Journal of Neuroradiology - June 13, 2018 Category: Radiology Authors: Marnat, G., Bühlmann, M., Eker, O. F., Gralla, J., Machi, P., Fischer, U., Riquelme, C., Arnold, M., Bonafe, A., Jung, S., Costalat, V., Mordasini, P. Tags: INTERVENTIONAL Source Type: research

Decreased functional connectivity within the default-mode network in acute brainstem ischemic stroke
Conclusion The finding of decreased functional connectivity within the DMN of patients with acute brainstem stroke provides novel insight into the neural mechanisms that underlie cognitive impairment following ischemic insult to this brain region.
Source: European Journal of Radiology - June 27, 2018 Category: Radiology Source Type: research

Carotid Webs and Ischemic Stroke: Experiences in a Comprehensive Stroke Center
ConclusionsWe provide one of the largest sample sizes of webs gathered in a single study. Given its association with ischemic stroke, carotid webs should be assessed for in all patients presenting with ischemic stroke, especially younger African Americans.
Source: Journal of Neuroradiology - October 5, 2018 Category: Radiology Source Type: research

Study reveals steep cost of delaying stroke treatment
Researchers from Canada have found that delaying treatment for stroke patients...Read more on AuntMinnie.comRelated Reading: 3 CTA signs show which stroke patients can skip surgery Perfusion imaging expands window for stroke treatment Infervision debuts AI stroke screening software CTA helps direct use of clot removal for stroke patients Color mapping boosts vessel interpretation in stroke CT
Source: AuntMinnie.com Headlines - October 18, 2018 Category: Radiology Source Type: news