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Specialty: Radiology
Condition: Thrombosis
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Total 469 results found since Jan 2013.
Identifying ex vivo acute ischemic stroke thrombus composition using electrochemical impedance spectroscopy
CONCLUSION: Combination of EIS and machine learning can reliably predict the RBC composition of retrieved ex vivo AIS thrombi and then classify them into groups according to their RBC composition with good sensitivity and specificity.PMID:37192738 | DOI:10.1177/15910199231175377
Source: Interventional Neuroradiology - May 16, 2023 Category: Radiology Authors: Jean Darcourt Waleed Brinjikji Olivier Fran çois Alice Giraud Collin R Johnson Smita Patil Senna Staessens Ramanathan Kadirvel Mahmoud H Mohammaden Leonardo Pisani Gabriel Martins Rodrigues Nicole M Cancelliere Vitor Mendes Pereira Franz Bozsak Karen Doy Source Type: research
Angiographic Baseline Proximal Thrombus Appearance of M1/M2 Occlusions in Mechanical Thrombectomy
ConclusionBaseline cut off thrombus appearance predicts a higher number of thrombectomy maneuvers. In day to day practice this may prepare the neurointerventionalist for a more challenging endovascular procedure ahead. Stroke etiology, clinical outcomes and thrombus-specific characteristics did not show any associations with the thrombus appearance.
Source: Klinische Neuroradiologie - December 4, 2019 Category: Radiology Source Type: research
Postoperative in-stent protrusion is an important predictor of perioperative ischemic complications after carotid artery stenting
Conclusions Postoperative ipsilateral stroke was observed more frequently in patients with demonstrated ISP following CAS.
Source: Journal of Neuroradiology - March 8, 2018 Category: Radiology Source Type: research
Initial and follow-up high-resolution vessel wall MRI study of spontaneous cervicocranial artery dissection
ConclusionsMultiple initial factors were found to be related to stroke occurrence and anatomical outcomes of sCCAD. High-resolution VW-MRI may provide valuable insights into the pathophysiology and evolution of sCCAD.Clinical relevance statementInitial and follow-up high-resolution vessel wall MRI may help elucidate the pathophysiology of spontaneous cervicocranial artery dissection and provide important insights into the evolution and further facilitate the optimal management of patients with spontaneous cervicocranial artery dissection.Key Points•Clinical and imaging factors, as well as the status of primary collateral...
Source: European Radiology - September 5, 2023 Category: Radiology Source Type: research
Posterior Circulation Occlusions May Be Associated with Distal Emboli During Thrombectomy
ConclusionPosterior circulation occlusions were significantly associated with distal emboli during thrombectomy, possibly due to the lack of flow arrest during such procedures. New techniques and devices should be developed to protect against embolic complications during posterior circulation stroke thrombectomy.
Source: Klinische Neuroradiologie - March 22, 2018 Category: Radiology Source Type: research
MR Perfusion in the Evaluation of Mechanical Thrombectomy Candidacy
Stroke is a leading cause of disability and mortality, and the incidence of ischemic stroke is projected to continue to rise in coming decades. These projections emphasize the need for improved imaging techniques for accurate diagnosis allowing effective treatments for ischemic stroke. Ischemic stroke is commonly evaluated with computed tomography (CT) or magnetic resonance imaging (MRI). Noncontrast CT is typically used within 4.5 hours of symptom onset to identify candidates for thrombolysis. Beyond this time window, thrombolytic therapy may lead to poor outcomes if patients are not optimally selected using appropriate...
Source: Topics in Magnetic Resonance Imaging - August 1, 2021 Category: Radiology Tags: Review Articles Source Type: research
The Effects of DWI ‐Infarct Lesion Volume on DWI‐FLAIR Mismatch: Is There a Need for Size Stratification?
CONCLUSIONThe effects of stroke onset‐to‐scan time gap on DWI‐FLAIR mismatch are not the same for different DWI lesion volumes. At DWI lesion volumes >15 mL, the DWI‐FLAIR mismatch is highly specific for acute infarcts within IV thrombolytic therapy time, and can identify wake‐up stroke patients eligible for treatment.
Source: Journal of Neuroimaging - October 31, 2016 Category: Radiology Authors: Seyedmehdi Payabvash, Shayandokht Taleb, John C. Benson, Jeffrey B. Rykken, Mark C. Oswood, Alexander M. McKinney, Benjamin Hoffman Tags: Clinical Investigative Study Source Type: research
Beyond the embolus: “do not miss” diffusion abnormalities of ischaemic and non-ischaemic neurological disease
AbstractGiven the rapid evolution and technological advances in the diagnosis and treatment of acute ischaemic stroke (AIS), including the proliferation of comprehensive stroke centres and increasing emphasis on interventional stroke therapies, the need for prompt recognition of stroke due to acute large vessel occlusion has received significant attention in the recent literature. Diffusion-weighted imaging (DWI) is the gold standard for the diagnosis of acute ischaemic stroke, as images appear positive within minutes of ischaemic injury, and a high signal-to-noise ratio enables even punctate infarcts to be readily detecte...
Source: Insights into Imaging - October 6, 2017 Category: Radiology Source Type: research
Potential for the Use of the Solitaire Stent for Recanalization of Middle Cerebral Artery Occlusion without a Susceptibility Vessel Sign INTERVENTIONAL
CONCLUSIONS:
The Solitaire stent is a feasible tool as the first-line device for multimodal endovascular recanalization therapy in acute ischemic stroke with a negative MCA susceptibility vessel sign. It has a good rate of successful and complete recanalization and is a fast yet safe procedure.
Source: American Journal of Neuroradiology - January 13, 2014 Category: Radiology Authors: Bae, Y. J., Jung, C., Kim, J. H., Choi, B. S., Kim, E., Han, M.- K., Bae, H.- J., Han, M. H. Tags: INTERVENTIONAL Source Type: research
Intraoperative Sonography During Carotid Endarterectomy: Normal Appearance and Spectrum of Complications
Carotid endarterectomy is a commonly performed procedure for prevention of stroke related to carotid stenosis. Intraoperative sonography is used to identify potentially correctable technical defects during carotid endarterectomy. The main risk of endarterectomy is perioperative stroke, and great effort has been put into trying to reduce this risk through various surgical techniques and evaluation of the surgical bed. Postoperative carotid thrombosis, or thombo-embolization from the arterectomy site, remains a common cause of perioperative stroke and is often related to technical defects in the arterial reconstruction proce...
Source: Journal of Ultrasound in Medicine - April 24, 2015 Category: Radiology Authors: Weinstein, S., Mabray, M. C., Aslam, R., Hope, T., Yee, J., Owens, C. Tags: Pictorial Essay Source Type: research
Outcomes of early carotid stenting and angioplasty in large-vessel anterior circulation strokes treated with mechanical thrombectomy and intravenous thrombolytics.
Conclusions If indicated, it is reasonable to consider concurrent carotid stenting and/or angioplasty for large-vessel anterior circulation stroke patients treated with mechanical thrombectomy who also receive intravenous thrombolytics.
PMID: 29697301 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - April 28, 2018 Category: Radiology Tags: Interv Neuroradiol Source Type: research
A direct aspiration first pass technique with the new ARC catheter for thrombectomy of large vessel occlusion strokes: A multicenter study.
Conclusions In the present study, the ARC catheter allowed a 98% successful reperfusion rate. The complication rate was in line with those of previous a direct aspiration first pass technique publications.
PMID: 30290720 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - October 7, 2018 Category: Radiology Tags: Interv Neuroradiol Source Type: research
Left atrial thrombus in patients with atrial fibrillation and under oral anticoagulant therapy; 3-D transesophageal echocardiographic study
AbstractIschemic stroke is the major complication of atrial fibrillation (AF) and only proven preventive therapy is oral anticoagulant therapy (OAC). Previous studies reported the presence of thrombus in the left atrium (LA) or left atrial appendage (LAA) despite anticoagulant therapy. We aim to investigate the predictors of LA/LAA thrombus in patients under OAC therapy and long-term clinical impact of thrombus. We prospectively enrolled consecutive patients with permanent AF under OAC therapy. Patients baseline characteristics were recorded. Transesophageal echocardiographic study performed after complete transthoracic ec...
Source: The International Journal of Cardiovascular Imaging - March 4, 2020 Category: Radiology Source Type: research
