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Specialty: Radiology
Condition: Thrombosis

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Total 469 results found since Jan 2013.

Use of optical coherence tomography in selected patients with recurrent cryptogenic stroke: A case series and technical discussion
CONCLUSION: Intravascular OCT is a feasible and safe approach to identifying patients with covert carotid wall abnormalities, like carotid WEBs and ulcerated plaques, that are amenable to carotid stenting to reduce recurrent stroke risk.PMID:36628417 | DOI:10.1177/15910199221150472
Source: Interventional Neuroradiology - January 11, 2023 Category: Radiology Authors: R ăzvan Alexandru Radu Federico Cagnazzo Imad Derraz Cyril Dargazanli Gr égory Gascou Pierre-Henri Lefevre Caroline Arquizan Vincent Costalat Source Type: research

Automated Segmentation of Intracranial Thrombus on NCCT and CTA in Patients with Acute Ischemic Stroke Using a Coarse-to-Fine Deep Learning Model ADULT BRAIN
CONCLUSIONS: The proposed deep learning method can reliably detect and measure thrombi on NCCT and CTA in patients with acute ischemic stroke.
Source: American Journal of Neuroradiology - June 8, 2023 Category: Radiology Authors: Zhu, K., Bala, F., Zhang, J., Benali, F., Cimflova, P., Kim, B. J., McDonough, R., Singh, N., Hill, M. D., Goyal, M., Demchuk, A., Menon, B. K., Qiu, W. Tags: ADULT BRAIN Source Type: research

Measurement of Length of Hyperdense MCA Sign in Acute Ischemic Stroke Predicts Disappearance after IV tPA
CONCLUSIONHMCAS length >10 mm infrequently disappears with IV tPA suggesting a potential need for ancillary therapy in this group.
Source: Journal of Neuroimaging - January 14, 2013 Category: Radiology Authors: Nandavar Shobha, Simerpreet Bal, Matthew Boyko, Eric Kroshus, Bijoy K. Menon, Rohit Bhatia, Sung‐Il Sohn, Gopukumar Kumarpillai, Jayme Kosior, Michael D. Hill, Andrew M. Demchuk Tags: Clinical Investigative Study Source Type: research

IMSIII, SYNTHESIS, and MR-RESCUE studies: the end of endovascular treatment for stroke?
Abstract Last March, in a single issue New England Journal of Medicine published 3 studies that evaluated the efficacy of endovascular treatment for ischemic stroke, leading to a heated controversy between neurologists and interventional neuroradiologists. The negative results have resulted in numerous reviews pointing out serious methodological defects. In this article, we analyze the outcomes of thrombolytic treatment for stroke and discuss the strengths and weaknesses of the three above-mentioned studies. Despite the negative results, these studies can point the way for new trials that will justify this treatme...
Source: Radiologia - October 19, 2013 Category: Radiology Authors: Moreno A, Hernández-Fernández F Tags: Radiologia Source Type: research

Spontaneous Solitaire™ AB Thrombectomy Stent Detachment During Stroke Treatment
Abstract Spontaneous Solitaire™ stent retriever detachment is a rarely defined entity seen during stroke treatment, which can result in a disastrous clinical outcome if it cannot be solved within a critical stroke treatment time window. Two solutions to this problem are presented in the literature. The first is to leave the stent in place and apply angioplasty to the detached stent, while the second involves surgically removing the stent from the location at which it detached. Here, we present a case of inadvertent stent detachment during stroke treatment for a middle cerebral artery M1 occlusion resulting in p...
Source: CardioVascular and Interventional Radiology - March 12, 2015 Category: Radiology Source Type: research

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

The Curved MCA: Influence of Vessel Anatomy on Recanalization Results of Mechanical Thrombectomy after Acute Ischemic Stroke INTERVENTIONAL
CONCLUSIONS: This retrospective analysis showed that mechanical thrombectomy in the anterior circulation was significantly less often successful in patients with large vessel angles. Therefore, vessel curvature significantly influences the results of mechanical thrombectomy with stent retrievers for treatment of acute ischemic stroke. Further work is needed to understand the underlying causality.
Source: American Journal of Neuroradiology - May 15, 2015 Category: Radiology Authors: Schwaiger, B. J., Gersing, A. S., Zimmer, C., Prothmann, S. Tags: INTERVENTIONAL Source Type: research

Magnetic Resonance Imaging in Ischemic Stroke and Cerebral Venous Thrombosis
Abstract: Imaging is indispensable in the evaluation of patients presenting with central nervous system emergencies. Although computed tomography (CT) is the mainstay of initial assessment and triage, magnetic resonance imaging (MRI) has become vital in expanding diagnostic capabilities, refining management strategies, and developing our understanding of disease processes. Ischemic stroke and cerebral venous thrombosis are 2 areas wherein MRI is actively revolutionizing patient care. Familiarity with the imaging manifestations of these 2 disease processes is crucial for any radiologist reading brain MR studies. In this rev...
Source: Topics in Magnetic Resonance Imaging - December 1, 2015 Category: Radiology Tags: Review Articles Source Type: research

Susceptibility Vessel Sign on MRI Predicts Favorable Clinical Outcome in Patients with Anterior Circulation Acute Stroke Treated with Mechanical Thrombectomy ADULT BRAIN
CONCLUSIONS: Our study strongly suggests that the susceptibility vessel sign on MR imaging before treatment is predictive of favorable clinical outcome for patients presenting with anterior circulation acute stroke and treated with mechanical thrombectomy.
Source: American Journal of Neuroradiology - December 15, 2015 Category: Radiology Authors: Bourcier, R., Volpi, S., Guyomarch, B., Daumas-Duport, B., Lintia-Gaultier, A., Papagiannaki, C., Serfaty, J. M., Desal, H. Tags: ADULT BRAIN Source Type: research

ASL and susceptibility-weighted imaging contribution to the management of acute ischaemic stroke
AbstractMagnetic resonance imaging (MRI) plays a central role in the early diagnosis of cerebral vascular events. Today, MRI is used not only for the detection of acute ischaemic lesions, but also to fine tune the diagnosis and improve patient selection for early therapeutic decision-making. In this perspective, new tools such as arterial spin labelling (ASL) and susceptibility-weighted imaging (SWI) sequences have been developed. These MRI sequences enable noninvasive assessment of brain damage, providing important diagnostic and prognostic information: evaluation of cerebral parenchymal perfusion; detection and aetiologi...
Source: Insights into Imaging - November 6, 2016 Category: Radiology Source Type: research

Retrograde semi-retrieval technique for combined stentriever plus aspiration thrombectomy in acute ischemic stroke.
We describe a modified retrieval technique using a distal intracranial catheter (DIC) for the semi-retrieval of stentriever during the thrombectomy procedure. The retrograde semi-retrieval technique involves completely unfolding the stent retriever by pulling a Navien catheter and the partial re-sheath of a retrievable stent forming a tapered configuration by pushing the Navien catheter, which results in the thrombi being embedded into the strut, securing the clot within the stent and there being a shorter distance for the clot to travel. This technique may lessen the occurrence of thrombus fragmentation and injury to the ...
Source: Interventional Neuroradiology - March 10, 2017 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Risk of Thrombus Fragmentation during Endovascular Stroke Treatment INTERVENTIONAL
CONCLUSIONS: Younger age, easy-to-retrieve thrombi, and bridging thrombolysis may be risk factors for periprocedural thrombus fragmentation. Findings from standard histologic stains did not provide insight into thrombectomy-relevant thrombus stability. However, higher neutrophil levels in the thrombus tissue were related to an increased risk of periprocedural thrombus fragmentation. This observation aligns with the proposed thrombolytic capacity of neutrophil elastase and points to its potential clinical relevance in the context of stroke thrombectomy.
Source: American Journal of Neuroradiology - May 15, 2017 Category: Radiology Authors: Kaesmacher, J., Boeckh-Behrens, T., Simon, S., Maegerlein, C., Kleine, J. F., Zimmer, C., Schirmer, L., Poppert, H., Huber, T. Tags: INTERVENTIONAL Source Type: research

Correlation between Intravoxel Incoherent Motion Magnetic Resonance Imaging Derived Metrics and Serum Soluble CD40 Ligand Level in an Embolic Canine Stroke Model.
CONCLUSION: The f value derived from IVIM imaging was negatively correlated with serum sCD40L level. f value might serve as a potential imaging biomarker to assess the formation of microvascular thrombosis in hyperacute period of ischemic stroke. PMID: 28860901 [PubMed - in process]
Source: Korean J Radiol - September 1, 2017 Category: Radiology Authors: Xu XQ, Wu CJ, Lu SS, Gao QQ, Zu QQ, Liu XL, Shi HB, Liu S Tags: Korean J Radiol Source Type: research

Endovascular management of extracranial occlusions at the hyperacute phase of stroke with tandem occlusions
Conclusions ervical occlusion with coils and thrombectomy with stent-retrievers may be relevant to prevent early embolic recurrence in cervical occlusions with intraluminal thrombus. Stent-retrievers should be further assessed as a first-line approach, since delayed stroke may occur following occlusion with coils.
Source: Journal of Neuroradiology - November 11, 2017 Category: Radiology Source Type: research

Safety profile of an 8F femoral arteriotomy closure using the Angio-Seal device in thrombolysed acute stroke patients undergoing thrombectomy.
Conclusion Use of the Angio-Seal closure device for 8F femoral access is safe in acute stroke patients. Intravenous thrombolysis prior to endovascular thrombectomy does not significantly alter femoral access site complication rate if this approach is used. PMID: 29871562 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - June 8, 2018 Category: Radiology Tags: Interv Neuroradiol Source Type: research