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Source: Journal of Neuroradiology
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Total 141 results found since Jan 2013.
Thrombus composition in acute ischemic stroke: A histopathological study of thrombus extracted by endovascular retrieval
Conclusion HAS was significantly associated with early phase thrombus composition. This may enable the prediction of thrombus composition and allow for targeted selection of therapeutic modality.
Source: Journal of Neuroradiology - April 3, 2015 Category: Radiology Source Type: research
Early versus late carotid artery stenting for symptomatic carotid stenosis
Conclusions In this study, CAS seems to be safe when used as first intention revascularization treatment within 2weeks of symptoms, if infarcted area is less than one third of the middle cerebral artery territory. Our results need to be confirmed by larger studies.
Source: Journal of Neuroradiology - April 3, 2015 Category: Radiology Source Type: research
Neuroradiology of acute stroke, where are we today?
Publication date: February 2015 Source:Journal of Neuroradiology, Volume 42, Issue 1 Author(s): Karl-Olof Lövblad , Laurent Pierot
Source: Journal of Neuroradiology - February 27, 2015 Category: Radiology Source Type: research
Current status of mechanical thrombectomy for acute stroke treatment
We report the current literature, clinical standards and perspectives on mechanical thrombectomy in acute ischemic stroke.
Source: Journal of Neuroradiology - February 8, 2015 Category: Radiology Source Type: research
Pharmacological recanalization therapy in acute ischemic stroke – Evolution, current state and perspectives of intravenous and intra-arterial thrombolysis
Publication date: Available online 31 January 2015 Source:Journal of Neuroradiology Author(s): Martin Hlavica , Michael Diepers , Carlos Garcia-Esperon , Benjamin Victor Ineichen , Krassen Nedeltchev , Timo Kahles , Luca Remonda Stroke ranges third in mortality in industrialized nations and is the leading cause of disability in older people. Ischemic stroke following thrombotic or embolic vessel occlusion accounts for more than 80% of cerebrovascular events. Immediate restoration of cerebral blood flow is crucial in order to salvage brain tissue. Experimental thrombolytic treatment was introduced into the clinical settin...
Source: Journal of Neuroradiology - January 31, 2015 Category: Radiology Source Type: research
An update on brain imaging in transient ischemic attack
Publication date: Available online 31 January 2015 Source:Journal of Neuroradiology Author(s): R. Souillard-Scemama , M. Tisserand , D. Calvet , D. Jumadilova , S. Lion , G. Turc , M. Edjlali , C. Mellerio , C. Lamy , O. Naggara , J.-F. Meder , C. Oppenheim Neuroimaging is critical in the evaluation of patients with transient ischemic attack (TIA) and MRI is the recommended modality to image an ischemic lesion. The presence of a diffusion (DWI) lesion in a patient with transient neurological symptoms confirms the vascular origin of the deficit and is predictive of a high risk of stroke. Refinement of MR studies including...
Source: Journal of Neuroradiology - January 31, 2015 Category: Radiology Source Type: research
Perfusion CT and acute stroke imaging: Foundations, applications, and literature review
Publication date: Available online 27 January 2015 Source:Journal of Neuroradiology Author(s): Joseph Donahue , Max Wintermark Multimodal CT features prominently in the rapidly evolving field of acute stroke triage, with perfusion CT applications at the forefront of many clinical research efforts. Perfusion CT offers a time sensitive and widely practicable assessment of cerebral hemodynamics and parenchymal viability that is key in acute stroke management. The following article reviews perfusion CT foundations and technical considerations while highlighting recent modality advances and frontline clinical applications. Is...
Source: Journal of Neuroradiology - January 27, 2015 Category: Radiology Source Type: research
MR screening of candidates for thrombolysis: How to identify stroke mimics?
Publication date: December 2014 Source:Journal of Neuroradiology, Volume 41, Issue 5 Author(s): F. Danière , M. Edjlali-Goujon , C. Mellerio , G. Turc , O. Naggara , L. Tselikas , W. Ben Hassen , M. Tisserand , C. Lamy , R. Souillard-Scemama , S. Flais , J.F. Meder , C. Oppenheim Stroke mimics account for up to a third of suspected strokes. The main causes are epileptic deficit, migraine aura, hypoglycemia, and functional disorders. Accurate recognition of stroke mimics is important for adequate identification of candidates for thrombolysis. This decreases the number of unnecessary treatments and invasive vascular inves...
Source: Journal of Neuroradiology - December 13, 2014 Category: Radiology Source Type: research
Defining acute ischemic stroke tissue pathophysiology with whole brain CT perfusion
Conclusions Whole brain CTP can accurately identify penumbra and ischemic core using similar thresholds to previously validated 16 or 64 slice CTP. Additionally, a novel probability based model was closer to defining the ischemic core and penumbra than single thresholds.
Source: Journal of Neuroradiology - December 13, 2014 Category: Radiology Source Type: research
Imaging of acute stroke: CT and/or MRI
Publication date: Available online 25 November 2014 Source:Journal of Neuroradiology Author(s): Karl-Olof Lövblad , Stephen Altrichter , Vitor Mendes Pereira , Maria Vargas , Ana Marcos Gonzalez , Sven Haller , Roman Sztajzel Acute ischemic stroke is now clearly recognized as a medical emergency. As such diagnosis has to be done quickly and in a precise way during the therapeutic window. Both computed tomography and magnetic resonance imaging are tools that can adequately demonstrate ischemia really very early on. MRI using diffusion techniques has a much higher sensitivity for acute lesions but its implementation has n...
Source: Journal of Neuroradiology - December 13, 2014 Category: Radiology Source Type: research
Interest of local intra-arterial fibrinolysis in acute central retinal artery occlusion: Clinical experience in 16 patients
Conclusion In situ fibrinolysis was more effective than medical treatments or natural evolution of CRAO (VA improvement was respectively 40% and 20%). However, the benefit/risk ratio must be discussed, and an angio-CT of supra-aortic trunks could be systematically performed before thrombolysis, to assess the potential VA recovery compared with complications such as ischemic stroke.
Source: Journal of Neuroradiology - December 13, 2014 Category: Radiology Source Type: research
Therapeutic efficacy of brain imaging in acute ischemic stroke patients
This article reviews main pathological findings in ischemic stroke patients as imaged with CT, CTA, MRI, and MRA and discusses its clinical effectiveness on different levels: technical, diagnostic accuracy, impact on diagnosis and treatment decisions affecting patient clinical outcome. It emphasizes the importance of detecting ischemic brain tissue damage (infarction) early during a time period when reperfusion therapy may be beneficial and provides evidence that brain tissue hypoattenuation as displayed by non-enhanced CT represents net water uptake (ionic edema) that is highly accurate in defining brain tissue that will ...
Source: Journal of Neuroradiology - December 13, 2014 Category: Radiology Source Type: research
Computed tomography angiography source images closely reflect the integrity of collateral circulation
Conclusions CTA-SI and CS convey overlapping information. CTA-SI is not a significant predictor of the clinical outcome three months after intravenous thrombolysis when the other CTA-based parameters, CS and the clot location, are considered simultaneously. CTA-SI may have a role in the assessment of the extent of irreversible ischemic changes at admission if contrast injection and image acquisition protocols are designed suitably.
Source: Journal of Neuroradiology - December 13, 2014 Category: Radiology Source Type: research
MRI abnormality of the pulvinar in patients with status epilepticus
Conclusions Our results demonstrated that the involvement of the pulvinar in status epilepticus is more frequent than expected and consisted of unilateral or bilateral DWI hyperintensities that may completely normalize. These pulvinar MRI abnormalities possibly reflect the epileptogenic hyperexcitation of different cortical areas through their connections with the pulvinar.
Source: Journal of Neuroradiology - October 12, 2014 Category: Radiology Source Type: research
FLAIR-hyperintense vessel sign, diffusion-perfusion mismatch and infarct growth in acute ischemic stroke without vascular recanalisation therapy
Conclusion The FHV sign is associated with larger PWI lesion volumes and DWI-to-PWI mismatch volumes in acute stroke and thus seems to be an indicator of collateral flow. However, it is unsuitable to predict infarct growth. The latter occurred when DWI-to-PWI mismatches were present with bigger relative mismatch volumes making subsequent infarct growth more likely.
Source: Journal of Neuroradiology - October 12, 2014 Category: Radiology Source Type: research
