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Specialty: Radiology

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Total 5918 results found since Jan 2013.

Evaluation of Artificial Intelligence-Powered Identification of Large-Vessel Occlusions in a Comprehensive Stroke Center FUNCTIONAL
CONCLUSIONS: Our experience evaluating Viz LVO shows that the system has the potential for early identification of patients with stroke with large-vessel occlusions, hopefully improving future management and stroke care.
Source: American Journal of Neuroradiology - February 9, 2021 Category: Radiology Authors: Yahav-Dovrat, A., Saban, M., Merhav, G., Lankri, I., Abergel, E., Eran, A., Tanne, D., Nogueira, R. G., Sivan-Hoffmann, R. Tags: FUNCTIONAL Source Type: research

Analysis of Stroke Detection during the COVID-19 Pandemic Using Natural Language Processing of Radiology Reports ADULT BRAIN
CONCLUSIONS: Acute or subacute ischemic stroke cases detected by neuroimaging decreased during the COVID-19 pandemic, though a higher proportion of studies ordered for stroke were positive for acute or subacute ischemic strokes. Natural language processing approaches can help automatically track acute or subacute ischemic stroke numbers for epidemiologic studies, though local classifier training is important due to radiologist reporting style differences.
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Li, M. D., Lang, M., Deng, F., Chang, K., Buch, K., Rincon, S., Mehan, W. A., Leslie-Mazwi, T. M., Kalpathy-Cramer, J. Tags: ADULT BRAIN Source Type: research

Rapid Assessment of Acute Ischemic Stroke by Computed Tomography Using Deep Convolutional Neural Networks
This study proposes an automatic identification scheme for acute ischemic stroke using deep convolutional neural networks (DCNNs) based on non-contrast computed tomographic (NCCT) images. Our image database for the classification model was composed of 1254 grayscale NCCT images from 96 patients (573 images) with acute ischemic stroke and 121 normal controls (681 images). According to the consensus of critical stroke findings by two neuroradiologists, a gold standard was established and used to train the proposed DCNN using machine-generated image features. Including the earliest DCNN, AlexNet, the popular Inception-v3, and...
Source: Journal of Digital Imaging - May 7, 2021 Category: Radiology Source Type: research

Development and external validation of a stability machine learning model to identify wake-up stroke onset time from MRI
ConclusionsThe svmRadial model using DWI  + FLAIR is the most stable and generalizable for identifying the onset time of wake-up stroke patients within 4.5 h of symptom onset.Key Points• Machining learning model helps clinicians to identify wake-up stroke patients within 4.5 h of symptom onset.• A prospective study showed that svmRadial model based on DWI + FLAIR was the most stable in predicting the stroke onset time.• External validation showed that svmRadial model has good generalization ability in predicting the stroke onset time.
Source: European Radiology - January 17, 2022 Category: Radiology Source Type: research

Rule-based natural language processing for automation of stroke data extraction: a validation study
ConclusionsRule-based NLP has a moderate to good performance for stroke-related data extraction from free-text imaging reports. The algorithm ’s accuracy was affected by inconsistent report styles and lexicon among reporting radiologists.
Source: Neuroradiology - November 9, 2022 Category: Radiology Source Type: research

The role of non-stenosing carotid artery plaques in embolic stroke of undetermined source, is it a silent offender? A review of literature
CONCLUSION: Nonstenosing carotid artery plaques with high-risk features carry a remarkable risk for stroke occurrence and randomized clinical trials are warranted for further evaluation of using carotid artery stenting or carotid endarterectomy to mitigate the risk of stroke.PMID:36451548 | DOI:10.1177/15910199221143172
Source: Interventional Neuroradiology - December 1, 2022 Category: Radiology Authors: Ammar Jumah Hassan Aboul Nour Michael Fana Omar Choudhury Lara Eltous Sohaib Zoghoul Fareed Jumah Owais K Alsrouji Hisham Alhajala Osama Intikhab Horia Marin Alex Chebl Daniel Miller Source Type: research

Association of Left Vertebral Artery Hypoplasia with Posterior Circulation Stroke and the Functional Outcome of Patients with Atrial Fibrillation-Related Cardioembolic Stroke EXTRACRANIAL VASCULAR
CONCLUSIONS: Patients with cardioembolic stroke and left vertebral artery hypoplasia had posterior circulation stroke, basilar artery occlusion, and poor functional outcomes after 3 months.
Source: American Journal of Neuroradiology - January 11, 2023 Category: Radiology Authors: Bae, J.- H., Ryu, J.- C., Ha, S. H., Kim, B. J., Kang, D.- W., Kwon, S. U., Kim, J.- S., Chang, J. Y. Tags: EXTRACRANIAL VASCULAR Source Type: research

The gut-brain connection: Inflammatory bowel disease increases risk of acute ischemic stroke
CONCLUSIONS: IBD patients develop AIS at a younger age with similar rates of stroke severity to their non-IBD counterparts, but receive higher rates of tissue plasminogen activator administration and decreased rates of mechanical thrombectomy. Our research shows that patients with IBD are at risk for AIS at an earlier age and are more likely to have complications. This underlies a connection between IBD and a hypercoagulable state that could predispose patients to AIS.PMID:37157802 | DOI:10.1177/15910199231170679
Source: Interventional Neuroradiology - May 9, 2023 Category: Radiology Authors: Nicholas W Mui Anaz Uddin Michael P Fortunato Bridget E Nolan Kevin M Clare Aiden K Lui Mohammed Al-Juboori Chirag D Gandhi Fawaz Al-Mufti Source Type: research

Impact on etiology diagnosis by high-resolution vessel wall imaging in young adults with ischemic stroke or transient ischemic attack
ConclusionsHRVWI had a substantial impact on etiologic classification in young adults with ischemic stroke or TIA, particularly for those primarily classified as having SAO or SUE. This impact of HRVWI will be beneficial for therapeutic decision-making.
Source: Neuroradiology - May 10, 2023 Category: Radiology Source Type: research

The gut-brain connection: Inflammatory bowel disease increases risk of acute ischemic stroke
CONCLUSIONS: IBD patients develop AIS at a younger age with similar rates of stroke severity to their non-IBD counterparts, but receive higher rates of tissue plasminogen activator administration and decreased rates of mechanical thrombectomy. Our research shows that patients with IBD are at risk for AIS at an earlier age and are more likely to have complications. This underlies a connection between IBD and a hypercoagulable state that could predispose patients to AIS.PMID:37157802 | DOI:10.1177/15910199231170679
Source: Interventional Neuroradiology - May 9, 2023 Category: Radiology Authors: Nicholas W Mui Anaz Uddin Michael P Fortunato Bridget E Nolan Kevin M Clare Aiden K Lui Mohammed Al-Juboori Chirag D Gandhi Fawaz Al-Mufti Source Type: research

Influence of geography, stroke timing, and weather conditions on transport and workflow times: Results from a longitudinal 5-year Canadian provincial registry
CONCLUSION: Geographic factors and stroke timing were associated with EVT workflow times. However, no association with clinical outcomes was seen, suggesting that EVT patients living remote areas of Saskatchewan have similar benefit from EVT compared to urban areas. Every effort should be made to offer timely EVT to patients from remote areas.PMID:37608547 | DOI:10.1177/15910199231196614
Source: Interventional Neuroradiology - August 23, 2023 Category: Radiology Authors: Nima Kashani Johanna Maria Ospel Nishita Singh Amy Zhou Aravind Ganesh Jessalyn Kathryn Holodinsky Mohammed Almekhlafi Saman Fouladirad Adam Frost Lotus Yang Robert Otani Braedon Newton Amit Persad Sanchea Wasyliw Brett R Graham Gary Hunter Aaron Gardner Source Type: research

The balloon occlusion sheath for stroke (BOSS) balloon guide catheter for stroke intervention: Safety and technical success
CONCLUSIONS: The BOSSTM balloon-guide catheter is a safe and technically effective adjunctive device for mechanical thrombectomy of acute ischemic stroke due to large vessel occlusion.PMID:37649344 | DOI:10.1177/15910199231198273
Source: Interventional Neuroradiology - August 31, 2023 Category: Radiology Authors: Joshua A Cuoco John J Entwistle Farhan Siddiq Ajit S Puri Keith Woodward Ricardo A Hanel Sameer A Ansari Donald Frei Biraj M Patel Source Type: research