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Total 156 results found since Jan 2013.

Preprocedural determination of an occlusion pathomechanism in endovascular treatment of acute stroke: a machine learning-based decision
Conclusions An ML-PM could accurately determine an occlusion pathomechanism with common preprocedural findings. A decision flowchart consisting of the four most influential findings was clinically applicable and superior to single common preprocedural findings for determining an occlusion pathomechanism.
Source: Journal of NeuroInterventional Surgery - August 29, 2023 Category: Neurosurgery Authors: Baek, J.-H., Kim, B. M., Kim, D. J., Heo, J. H., Nam, H. S., Kim, Y. D., Rho, M. H., Chung, P.-W., Won, Y. S., Chung, Y. Tags: Ischemic stroke Source Type: research

P040/41 Imaging study in stroke diagnosis and treatment in a referral center Chile
ConclusionAs a conclusion, different topics of obtaining and observing images in Stroke are obtained. Either CT, MRA, Cerebral Angiography. Both nurses and technicians should know some generalities and topics of nomenclature, neuroanatomy, general and specific characteristics of each of the imaging techniques that we want to share for this ETMINT 2023 seminar.Disclosure of InterestNothing to disclose
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Nunez, F. B. Tags: 4. Ischemic stroke Source Type: research

P041/42 Imaging study in stroke diagnosis and treatment in a referral center in Chile
ConclusionAs a conclusion, different topics of obtaining and observing images in Stroke are obtained. Either CT, MRA, Cerebral Angiography. Both nurses and technicians should know some generalities and topics of nomenclature, neuroanatomy, general and specific characteristics of each of the imaging techniques that we want to share for this ETMINT 2023 seminar.Disclosure of InterestNothing to disclose
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Nunez, F. B. Tags: 4. Ischemic stroke Source Type: research

Computed tomography angiography-based radiomics model for predicting carotid atherosclerotic plaque vulnerability
This study aimed to identify radiomic features associated with the neovascularization of CAP and construct a prediction model for CAP vulnerability based on radiomic features. CTA data and clinical data of patients with CAPs who underwent CTA and CEUS between January 2018 and December 2021 in Beijing Hospital were retrospectively collected. The data were divided into a training cohort and a testing cohort using a 7:3 split. According to the examination of CEUS, CAPs were dichotomized into vulnerable and stable groups. 3D Slicer software was used to delineate the region of interest in CTA images, and the Pyradiomics package...
Source: Frontiers in Neurology - June 16, 2023 Category: Neurology Source Type: research

CT Angiography Radiomics Combining Traditional Risk Factors to Predict Brain Arteriovenous Malformation Rupture: a Machine Learning, Multicenter Study
This study aimed to develop a machine learning model for predicting brain arteriovenous malformation (bAVM) rupture using a combination of traditional risk factors and radiomics features. This multicenter retrospective study enrolled 586 patients with unruptured bAVMs from 2010 to 2020. All patients were grouped into the hemorrhage (n = 368) and non-hemorrhage (n = 218) groups. The bAVM nidus were segmented on CT angiography images using Slicer software, and radiomic features were extracted using Pyradiomics. The dataset included a training set and an independent testing set. The machine learning model was developed on the...
Source: Translational Stroke Research - June 13, 2023 Category: Neurology Source Type: research

Machine learning-based identification of symptomatic carotid atherosclerotic plaques with dual-energy computed tomography angiography
CONCLUSION: FF and NID can serve as useful imaging markers of symptomatic carotid plaques. This tree-based machine learning model incorporating both DECT and clinical features could potentially comprise a non-invasive method for identification of symptomatic carotid plaques to guide clinical treatment strategies.PMID:37290153 | DOI:10.1016/j.jstrokecerebrovasdis.2023.107209
Source: Atherosclerosis - June 8, 2023 Category: Cardiology Authors: Ling-Jie Wang Pei-Qing Zhai Li-Li Xue Cai-Yun Shi Qian Zhang Hua Zhang Source Type: research

The Great Contrast Shortage of 2022 —Lessons learnt in Australia
ConclusionOur findings demonstrate that the IBCM shortage crisis had a very significant impact on the delivery of healthcare. While V/Q scans could (partially) substitute for CTPA studies in suspected pulmonary emboli, there appeared to be no valid alternative for CTNA studies in stroke calls. The unexpected and critical shortage of IBCM forced healthcare professionals to conserve resources, prioritise indications, triage patients based on risk, explore alternate imaging strategies and prepare for similar events recurring in the future.
Source: Journal of Medical Imaging and Radiation Oncology - May 18, 2023 Category: Radiology Authors: Giles Kisby, James H Seow, Greg Schie, Constantine C Phatouros, Kay ‐Vin Lam, Tracey Muir, Sally Burrows, Paul M Parizel Tags: Medical Imaging —Original Article Source Type: research

Automated detection of arterial landmarks and vascular occlusions in patients with acute stroke receiving digital subtraction angiography using deep learning
Conclusion These results may serve as an unbiased standard for clinical stroke trials, as optimal standardization would be useful for core laboratories in endovascular thrombectomy studies, and also expedite decision-making during DSA-based procedures.
Source: Journal of NeuroInterventional Surgery - May 16, 2023 Category: Neurosurgery Authors: Khankari, J., Yu, Y., Ouyang, J., Hussein, R., Do, H. M., Heit, J. J., Zaharchuk, G. Tags: Ischemic stroke Source Type: research

Quantitative CTA vascular calcification, atherosclerosis burden, and stroke mechanism in patients with ischemic stroke
CONCLUSION: Atherosclerosis calcium volumes in major vessels were significantly higher in LAA compared to non-LAA stroke in younger age.PMID:37148773 | DOI:10.1016/j.jns.2023.120667
Source: Atherosclerosis - May 6, 2023 Category: Cardiology Authors: Takashi Shimoyama Sibaji Gaj Kunio Nakamura Shivakrishna Kovi Shumei Man Ken Uchino Source Type: research

Custom-Made Candy-Plug for Distal False Lumen Occlusion in Aortic Dissection: International Experience
CONCLUSION: This international CP technique experience confirmed its feasibility and low mortality and morbidity. Aortic remodelling and false lumen thrombosis rates were high and support the concept of distal FL occlusion in AD using the CP technique.PMID:36958480 | DOI:10.1016/j.ejvs.2023.03.020
Source: PubMed: Eur J Vasc Endovasc ... - March 23, 2023 Category: Surgery Authors: Ahmed Eleshra Stephan Haulon Luca Bertoglio Thomas Lindsay Fiona Rohlffs Nuno Dias Nikolaos Tsilimparis Giuseppe Panuccio Tilo K ölbel Candy-Plug Collaborators Source Type: research

Deep Learning-based Assessment of Internal Carotid Artery Anatomy to Predict Difficult Intracranial Access in Endovascular Recanalization of Acute Ischemic Stroke
ConclusionThe association between ICA angle and EVT duration could be verified and a  DL-based method for semi-automatic assessment with the potential for full automation was developed. More anatomical features of interest could be examined in a similar fashion.
Source: Clinical Neuroradiology - March 16, 2023 Category: Neurology Source Type: research