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Source: American Journal of Neuroradiology

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Total 580 results found since Jan 2013.

Low-Dose Eptifibatide for Tandem Occlusion in Stroke: Safety and Carotid Artery Patency EXTRACRANIAL VASCULAR
CONCLUSIONS: Low-dose eptifibatide seemed to be safe in tandem occlusions (symptomatic intracranial hemorrhage, 2%), although asymptomatic cervical carotid artery re-occlusions still occurred in 14% of patients.
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Jost, A., Roels, C., Brown, M., Janjua, R., Heck, D. Tags: EXTRACRANIAL VASCULAR Source Type: research

Validation of the National Institute of Neurological Disorders and Stroke Spinal Cord Injury MRI Common Data Elements Instrument SPINE
CONCLUSIONS: Agreement was more consistent for the ordinal measures of spinal cord injury than continuous measures. Good to excellent agreement on length and location of spinal cord hemorrhage and edema can be achieved with ordinal measures alone.
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Fisher, J., Krisa, L., Middleton, D. M., Leiby, B. E., Harrop, J. S., Shah, L. M., Schwartz, E. D., Doshi, A., Faro, S. H., Mohamed, F. B., Flanders, A. E. Tags: SPINE Source Type: research

A Comparison of Chest Radiograph and CTA Apical Pulmonary Findings in Patients Presenting with Suspected Acute Stroke during the COVID-19 Pandemic LETTERS
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Siddiqui, J., Bala, F., Sciacca, S., Falzon, A. M., Benger, M., Matloob, S. A., Miller, F. N. A. C., Simister, R. J., Chatterjee, I., Sztriha, L. K., Davagnanam, I., Booth, T. C. Tags: LETTERS Source Type: research

Correlation between ASPECTS and Core Volume on CT Perfusion: Impact of Time since Stroke Onset and Presence of Large-Vessel Occlusion FUNCTIONAL
CONCLUSIONS: In a large cohort of patients with acute ischemic stroke, we found a moderate correlation between ASPECTS and CTP core. However, this was stronger in patients with large-vessel occlusion and longer delay from stroke onset. Our results could support the use of ASPECTS as a surrogate marker of CTP core in late-arriving patients with acute ischemic stroke with large-vessel occlusion.
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Nannoni, S., Ricciardi, F., Strambo, D., Sirimarco, G., Wintermark, M., Dunet, V., Michel, P. 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

CTA Protocols in a Telestroke Network Improve Efficiency for Both Spoke and Hub Hospitals ADULT BRAIN
CONCLUSIONS: Implementation of CTA at spoke hospitals in our telestroke network was feasible and improved the efficiency of stroke triage. Rates of patients retained at spoke hospitals remained stable despite higher numbers of patients screened. Emergent large-vessel occlusion confirmation at the spoke hospital lead to a more than 2-fold increase in thrombectomy rates among transferred patients at the hub.
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Yu, A. T., Regenhardt, R. W., Whitney, C., Schwamm, L. H., Patel, A. B., Stapleton, C. J., Viswanathan, A., Hirsch, J. A., Lev, M., Leslie-Mazwi, T. M. Tags: ADULT BRAIN Source Type: research

Quantification of Oscillatory Shear Stress from Reciprocating CSF Motion on 4D Flow Imaging ADULT BRAIN
CONCLUSIONS: Oscillatory shear stress, which reflects wall shear stress vector changes better than the conventional wall shear stress magnitude and the oscillatory shear index, can be directly measured on 4D flow MR imaging. Oscillatory shear stress at the cerebral aqueduct was considerably higher in patients with idiopathic normal pressure hydrocephalus.
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Yamada, S., Ito, H., Ishikawa, M., Yamamoto, K., Yamaguchi, M., Oshima, M., Nozaki, K. Tags: ADULT BRAIN Source Type: research

Mechanical Thrombectomy in Nighttime Hours: Is There a Difference in 90-Day Clinical Outcome for Patients with Ischemic Stroke? INTERVENTIONAL
CONCLUSIONS: In a highly organized stroke care network, mechanical thrombectomy is quite effective in the nighttime hours among acute ischemic stroke presentations. Unexpectedly, we found that those patients achieved favorable clinical outcomes more frequently than those treated during daytime hours. Larger series are needed to confirm these results.
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Benali, A., Moynier, M., Dargazanli, C., Deverdun, J., Cagnazzo, F., Mourand, I., Bonafe, A., Arquizan, C., Derraz, I., Menjot de Champfleur, N., Molino, F., Ducros, A., Le Bars, E., Costalat, V. Tags: INTERVENTIONAL Source Type: research

Multiphase CT Angiography: A Useful Technique in Acute Stroke Imaging--Collaterals and Beyond ADULT BRAIN
SUMMARY: Multiphase CTA offers several important advantages over the traditional single-phase CTA technique in acute ischemic stroke, including improved detection of large-vessel occlusion, improved characterization of collateral status, improved tolerance of patient motion and poor hemodynamics, and higher interrater reliability. These benefits are gleaned at little additional cost in terms of time, risk to the patient, and capital expense. Existing data suggest that there are important benefits to using multiphase CTA in lieu of single-phase CTA in the initial vessel assessment of patients with acute stroke.
Source: American Journal of Neuroradiology - February 9, 2021 Category: Radiology Authors: Dundamadappa, S., Iyer, K., Agrawal, A., Choi, D. J. Tags: ADULT BRAIN Source Type: research

Prediction of Clinical Outcome in Patients with Large-Vessel Acute Ischemic Stroke: Performance of Machine Learning versus SPAN-100 FUNCTIONAL
CONCLUSIONS: Machine learning–based feature selection can identify parameters with higher performance in outcome prediction. Machine learning models with the best-performing features, especially advanced CTP data, had superior performance of the recovery outcome prediction for patients with stroke at admission in comparison with SPAN-100.
Source: American Journal of Neuroradiology - February 9, 2021 Category: Radiology Authors: Jiang, B., Zhu, G., Xie, Y., Heit, J. J., Chen, H., Li, Y., Ding, V., Eskandari, A., Michel, P., Zaharchuk, G., Wintermark, M. Tags: FUNCTIONAL Source Type: research

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

Emerging Artificial Intelligence Imaging Applications for Stroke Interventions article-commentary
Source: American Journal of Neuroradiology - February 9, 2021 Category: Radiology Authors: Lotan, E. Tags: article-commentary Source Type: research

COVID-19 Severity and Stroke: Correlation of Imaging and Laboratory Markers ADULT BRAIN
CONCLUSIONS: Patients with stroke hospitalized with severe COVID-19 are characterized by higher inflammatory, coagulopathy, and tissue-damage biomarkers, supporting proposed pathogenic mechanisms of hyperinflammation activating a prothrombotic state. Cautious balancing of thrombosis and the risk of hemorrhagic transformation is warranted when considering anticoagulation.
Source: American Journal of Neuroradiology - February 9, 2021 Category: Radiology Authors: Katz, J. M., Libman, R. B., Wang, J. J., Filippi, C. G., Sanelli, P., Zlochower, A., Gribko, M., Pacia, S. V., Kuzniecky, R. I., Najjar, S., Azhar, S. Tags: ADULT BRAIN Source Type: research

Basal Ganglia versus Peripheral Infarcts: Predictive Value of Early Fiber Alterations FUNCTIONAL
CONCLUSIONS: Corticospinal tract abnormalities can be observed in the early stage after mechanical recanalization and have prognostic capacity. This finding increases the clinical value of early DTI imaging parameters. Because the effects observed were limited to peripheral infarcts, further and longitudinal evaluation of fiber integrities within basal ganglia infarction is required.
Source: American Journal of Neuroradiology - February 9, 2021 Category: Radiology Authors: Berndt, M. T., Pürner, D., Maegerlein, C., Wunderlich, S., Friedrich, B., Zimmer, C., Sepp, D., Kaesmacher, J., Boeckh-Behrens, T. Tags: FUNCTIONAL Source Type: research

Diffusion Tensor Imaging for Predicting the Outcome of Large-Vessel Ischemic Stroke Treated with Mechanical Thrombectomy: Is This the Prime Time? article-commentary
Source: American Journal of Neuroradiology - February 9, 2021 Category: Radiology Authors: Hannawi, Y. Tags: article-commentary Source Type: research