Filtered By:
Condition: Hemorrhagic Stroke
Procedure: Perfusion

This page shows you your search results in order of relevance. This is page number 11.

Order by Relevance | Date

Total 533 results found since Jan 2013.

Ctbrain machine learning predicts stroke thrombolysis result
Conclusions This proof-of-concept study shows that machine learning methods applied to acute stroke CT-scans potentially offers automation, and improved performance in SICH prediction following thrombolysis. Larger-scale cohorts, and incorporation of CT perfusion/angiography data, should be tested with such methods.
Source: Journal of Neurology, Neurosurgery and Psychiatry - September 9, 2014 Category: Neurosurgery Authors: Epton, S., Bentley, P., Ganesalingam, J., Dias, A., Mahady, K., Rinne, P., Sharma, P., Halse, O., Mehta, A., Rueckert, D. Tags: Abstracts Source Type: research

Ischemic stroke in greyhounds
Stroke can be the result of ischemic or hemorrhagic events that cause decreased perfusion to the entire brain or to a specific region of the brain. Ischemic stroke is the result of vascular occlusion secondary to a thrombus or embolus. Hemorrhagic stroke is the result of bleeding.
Source: Advances in Small Animal Medicine and Surgery - January 1, 2015 Category: Veterinary Research Tags: Neurology Source Type: research

E-095 what are the risk factors and outcomes relating to hemorrhagic transformation with large vessel occlusion in the anterior circulation at a comprehensive stroke center?
ConclusionMT is associated with an increased rate of HI hemorrhages but not PH hemorrhages. HI hemorrhages have no correlation with death or mRS. mRS may be too insensitive to detect deficits relating to HI hemorrhages, NIHSS should be used in studies investigating clinical outcomes relating to HI hemorrhages. BG involvement may correlate with both HI and PH hemorrhages in patients treated with and without MT. However, having BG involvement does not seem to correlate with a worse prognosis in MT patients with any type of hemorrhage.DisclosuresG. Bennett: None. M. Al Hasan: None. G. Vidal: 3; C; Penumbra. Q. Luo: None. J. Milburn: None.
Source: Journal of NeuroInterventional Surgery - July 26, 2015 Category: Neurosurgery Authors: Bennett, G., Hasan, M. A., Vidal, G., Luo, Q., Milburn, J. Tags: SNIS 12th Annual Meeting Electronic Poster Abstracts Source Type: research

Movement disorders and stroke.
Authors: Defebvre L, Krystkowiak P Abstract Stroke may be associated with different types of movement disorders, such as hyperkinetic syndromes (hemichorea-hemiballism, unilateral asterixis, limb-shaking, dystonia, tremor, myoclonus) and hypokinetic syndromes (especially vascular parkinsonism). However, movement disorders are rare and transient in acute stroke and, as a permanent consequence, are more often delayed. While ischemic and hemorrhagic strokes can happen at any level of the frontal-subcortical motor system, they can be explained most of the time by a dysfunction in the basal ganglia motor circuit. Howeve...
Source: Revue Neurologique - August 2, 2016 Category: Neurology Tags: Rev Neurol (Paris) Source Type: research

Improving the detection sensitivity of pH ‐weighted amide proton transfer MRI in acute stroke patients using extrapolated semisolid magnetization transfer reference signals
ConclusionsThe quantitative APT study using the extrapolated semisolid magnetization transfer reference signal approach enhances APT MRI sensitivity to pH compared with conventional APT‐weighted MRI, allowing more reliable delineation of an ischemic acidosis in the penumbra. Magn Reson Med, 2017. © 2017 International Society for Magnetic Resonance in Medicine.
Source: Magnetic Resonance in Medicine - June 21, 2017 Category: Radiology Authors: Hye ‐Young Heo, Yi Zhang, Tina M. Burton, Shanshan Jiang, Yansong Zhao, Peter C.M. van Zijl, Richard Leigh, Jinyuan Zhou Tags: Rapid Communication Source Type: research

3 CTA signs show which stroke patients can skip surgery
There are three key characteristics evident on CT angiography (CTA) scans that...Read more on AuntMinnie.comRelated Reading: 5 risk factors help predict brain hemorrhage on CT AI algorithm can triage head CT exams for urgent review Perfusion imaging expands window for stroke treatment CTA helps direct use of clot removal for stroke patients Color mapping boosts vessel interpretation in stroke CT
Source: AuntMinnie.com Headlines - September 13, 2018 Category: Radiology Source Type: news

Mechanical Thrombectomy in Acute Stroke Due to Carotid Occlusion: A Series of 153 Consecutive Patients
Conclusions: In our population, patients with CAO clinically present with severe strokes. Isolated occlusions of the extra- or intracranial segments of the carotid are more frequent than tandem occlusions. Successful recanalization after thrombectomy is achieved in most of the patients, but association with favorable functional outcome is poor. Clinical evolution is similar in patients treated with PMT and BT. Intracranial symptomatic hemorrhage after treatment is associated with higher intrahospital mortality and worse 3 months-mRS. Poor perfusion-CT mismatch, symptomatic hemorrhage, and isolated CAO are independent predi...
Source: Cerebrovascular Diseases - September 17, 2018 Category: Neurology Source Type: research

Start-up BURL develops ultrasound-based 'ECG for stroke'
SAN FRANCISCO - A California start-up is developing an ultrasound-based device...Read more on AuntMinnie.comRelated Reading: Study reveals steep cost of delaying stroke treatment 3 CTA signs show which stroke patients can skip surgery 5 risk factors help predict brain hemorrhage on CT AI algorithm can triage head CT exams for urgent review Perfusion imaging expands window for stroke treatment
Source: AuntMinnie.com Headlines - January 9, 2019 Category: Radiology Source Type: news

Combined Perfusion and Permeability Imaging Reveals Different Pathophysiologic Tissue Responses After Successful Thrombectomy
AbstractDespite successful recanalization of large-vessel occlusions in acute ischemic stroke, individual patients profit to a varying degree. Dynamic susceptibility-weighted perfusion and dynamic T1-weighted contrast-enhanced blood-brain barrier permeability imaging may help to determine secondary stroke injury and predict clinical outcome. We prospectively performed perfusion and permeability imaging in 38 patients within 24  h after successful mechanical thrombectomy of an occlusion of the middle cerebral artery M1 segment. Perfusion alterations were evaluated on cerebral blood flow maps, blood-brain barrier disruption...
Source: Translational Stroke Research - January 11, 2021 Category: Neurology Source Type: research

Collateral and permeability imaging derived from dynamic contrast material-enhanced MR angiography in prediction of PH 2 hemorrhagic transformation after acute ischemic stroke: a pilot study
ConclusionIndividual-based prediction of PH 2 hemorrhagic transformation in patients with acute ischemic stroke may be possible with multiphase collateral map and permeability imaging derived from dynamic contrast material-enhanced magnetic resonance angiography.
Source: Neuroradiology - February 3, 2021 Category: Radiology Source Type: research

Cost-Consequence Analysis of Advanced Imaging in Acute Ischemic Stroke Care
Conclusions: Our study reveals that adoption of advanced CTAP imaging at presentation increases the demand for treatment of acute ischemic stroke patients as more patients are diagnosed within the treatment time window compared to standard-of-care imaging. Advanced imaging also leads to more patients with good functional outcomes and fewer patients with dependent functional status.
Source: Frontiers in Neurology - November 26, 2021 Category: Neurology Source Type: research

Clinical Relevance of Computed Tomography Perfusion-Estimated Infarct Volume in Acute Ischemic Stroke Patients within the 6-h Therapeutic Time Window
Conclusion: Larger initial infarct volumes are significantly associated with worse clinical outcomes in patients who underwent EVT because of early time window stroke. Furthermore, our study of 6-h data demonstrated that an initial infarction of more than a certain volume might be an independent risk factor for sICH development and poor outcomes even in patients with successful recanalization. However, we still observed benefits of EVT in patients with large ischemic cores. The CTP-estimated infarct volume might be an important prognostic factor after EVT rather than a biomarker predicting treatment effectiveness.Cerebrovasc Dis
Source: Cerebrovascular Diseases - January 21, 2022 Category: Neurology Source Type: research

Time to Endovascular Reperfusion and Outcome in Acute Ischemic Stroke
ConclusionAmong patients with acute ischemic stroke in routine clinical practice, shorter time to reperfusion was associated with better outcome after endovascular therapy. Standardized workflows and training in endovascular treatment techniques should be promoted nationally to reduce in-hospital delays.
Source: Klinische Neuroradiologie - May 27, 2022 Category: Radiology Source Type: research

Association of hyperglycemia and computed tomographic perfusion deficits in patients who underwent endovascular treatment for acute ischemic stroke caused by a proximal intracranial occlusion: A subgroup analysis of a randomized phase 3 trial (MR CLEAN)
Hyperglycemia is highly prevalent in patients with acute ischemic stroke and is associated with increased risk of symptomatic intracranial hemorrhage, larger infarct size and unfavorable outcome. Furthermore, glucose may modify the effect of endovascular treatment (EVT) in patients with ischemic stroke. Hyperglycemia might lead to accelerated conversion of penumbra into infarct core. However, it remains uncertain whether hyperglycemia on admission is associated with the size of penumbra or infarct core in acute ischemic stroke.
Source: Journal of the Neurological Sciences - June 30, 2022 Category: Neurology Authors: C.J.B.A. Kersten, A.A.M. Zandbergen, O.A. Berkhemer, J. Borst, M. Haalboom, Y.B.W.E.M. Roos, D.W.J. Dippel, R.J. van Oostenbrugge, A. van der Lugt, W.H. van Zwam, C.B. Majoie, H.M. den Hertog, on behalf of the MR CLEAN investigators Source Type: research

Proposal of multimodal computed tomography-based scoring system in prediction of hemorrhagic transformation in acute ischemic stroke
ConclusionMultimodal CT-based scoring system may provide highly reliable predictive model of hemorrhagic transformation in acute ischemic stroke.
Source: Acta Neurologica Belgica - April 8, 2023 Category: Neurology Source Type: research