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Source: American Journal of Neuroradiology

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Total 580 results found since Jan 2013.

Perceived Limits of Endovascular Treatment for Secondary Medium-Vessel-Occlusion Stroke INTERVENTIONAL
CONCLUSIONS: Physicians’ willingness to treat secondary medium vessel occlusions endovascularly is limited and varies per occlusion location and change in neurologic status. More evidence on the safety and efficacy of endovascular treatment for secondary medium vessel occlusion stroke is needed.
Source: American Journal of Neuroradiology - December 13, 2021 Category: Radiology Authors: Cimflova, P., McDonough, R., Kappelhof, M., Singh, N., Kashani, N., Ospel, J. M., Demchuk, A. M., Menon, B. K., Chen, M., Sakai, N., Fiehler, J., Goyal, M. Tags: INTERVENTIONAL Source Type: research

Detection of Early Ischemic Changes with Virtual Noncontrast Dual-Energy CT in Acute Ischemic Stroke: A Noninferiority Analysis ADULT BRAIN
CONCLUSIONS: Dual-energy virtual NCCT is noninferior compared with conventional NCCT for the detection of early ischemic changes with ASPECTS.
Source: American Journal of Neuroradiology - September 7, 2022 Category: Radiology Authors: Kauw, F., Ding, V. Y., Dankbaar, J. W., van Ommen, F., Zhu, G., Boothroyd, D. B., Wolman, D. N., Molvin, L., de Jong, H. W. A. M., Kappelle, L. J., Velthuis, B. K., Heit, J. J., Wintermark, M. Tags: ADULT BRAIN Source Type: research

Automated Estimation of Quantitative Lesion Water Uptake as a Prognostic Biomarker for Patients with Ischemic Stroke and Large-Vessel Occlusion ADULT BRAIN
CONCLUSIONS: ASPECTS–net water uptake could independently predict 90-day neurologic outcomes in patients with acute ischemic stroke and large-vessel occlusion. Integrating ASPECTS–net water uptake with clinical models could improve the efficiency of outcome stratification.
Source: American Journal of Neuroradiology - January 11, 2023 Category: Radiology Authors: Lu, S. S., Wu, R. R., Cao, Y. Z., Xu, X. Q., Jia, Z. Y., Shi, H. B., Liu, S., Wu, F. Y. Tags: ADULT BRAIN Source Type: research

Comprehensive Venous Outflow Predicts Functional Outcomes in Patients with Acute Ischemic Stroke Treated by Thrombectomy INTERVENTIONAL
CONCLUSIONS: A favorable comprehensive venous profile is strongly associated with functional independence and excellent postthrombectomy reperfusion. Future studies should focus on patients with venous outflow status that is discrepant with the eventual outcome.
Source: American Journal of Neuroradiology - June 8, 2023 Category: Radiology Authors: Adusumilli, G., Faizy, T. D., Christensen, S., Mlynash, M., Loh, Y., Albers, G. W., Lansberg, M. G., Fiehler, J., Heit, J. J. Tags: INTERVENTIONAL Source Type: research

Effect of Radiographic Contrast Media Shortage on Stroke Evaluation in the United States ADULT BRAIN
CONCLUSIONS: Our analysis reported changes in the use of CTA and CTP in patients with acute ischemic stroke during the contrast media shortage. Further research needs to identify effective strategies to reduce the reliance on contrast media–based studies such as CTA and CTP without compromising patient outcomes.
Source: American Journal of Neuroradiology - August 9, 2023 Category: Radiology Authors: Qureshi, A. I., Grintal, A., DeGaetano, A. C., Goren, M., Lodhi, A., Golan, D., Hassan, A. E. Tags: ADULT BRAIN Source Type: research

CT Perfusion Does Not Modify the Effect of Reperfusion in Patients with Acute Ischemic Stroke Undergoing Endovascular Treatment in the ESCAPE-NA1 Trial INTERVENTIONAL
CONCLUSIONS: CTP did not modify the effect of near-complete reperfusion on clinical outcomes. Thus, CTP cannot explain why some patients with near-complete reperfusion have poor clinical outcomes.
Source: American Journal of Neuroradiology - September 11, 2023 Category: Radiology Authors: Rex, N. B., McDonough, R. V., Ospel, J. M., Kashani, N., Sehgal, A., Fladt, J. C., McTaggart, R. A., Nogueira, R., Menon, B., Demchuk, A. M., Tymianski, M., Hill, M. D., Goyal, M., on behalf of the ESCAPE-NA1 Investigators Tags: INTERVENTIONAL Source Type: research

Comparison of Stent-Retriever Devices versus the Merci Retriever for Endovascular Treatment of Acute Stroke INTERVENTIONAL
CONCLUSIONS: Patients treated with Trevo and Solitaire stents had a better revascularization rate, better clinical outcome, and lower complication rate than patients treated with the Merci retriever.
Source: American Journal of Neuroradiology - February 13, 2013 Category: Radiology Authors: Broussalis, E., Trinka, E., Hitzl, W., Wallner, A., Chroust, V., Killer-Oberpfalzer, M. Tags: INTERVENTIONAL Source Type: research

Geniculocalcarine Tract Disintegration after Ischemic Stroke: A Diffusion Tensor Imaging Study BRAIN
CONCLUSIONS: The geniculocalcarine tract fibers affected by infarction and the ipsilateral unaffected GCT fibers showed different disintegration processes. The progressive disintegration of geniculocalcarine tract fibers affected by infarction was stable until the eighth week poststroke. The ipsilateral unaffected GCT fibers began to disintegrate at the fourth week, but to a lesser degree than the geniculocalcarine tract fibers affected by infarction.
Source: American Journal of Neuroradiology - October 8, 2013 Category: Radiology Authors: Zhang, Y., Wan, S., Zhang, X. Tags: BRAIN Source Type: research

Hyperattenuated Intracerebral Lesions after Mechanical Recanalization in Acute Stroke INTERVENTIONAL
CONCLUSIONS: Our data show that the extent of postinterventional hyperattenuated intracerebral lesions underestimates the volume of final infarction. Although hyperattenuated lesions indicate a higher risk of secondary hemorrhagic transformation, their presence seems not to be of any prognostic value regarding clinical outcome.
Source: American Journal of Neuroradiology - February 12, 2014 Category: Radiology Authors: Lummel, N., Schulte-Altedorneburg, G., Bernau, C., Pfefferkorn, T., Patzig, M., Janssen, H., Opherk, C., Bruckmann, H., Linn, J. Tags: INTERVENTIONAL Source Type: research

Emergency Cervical Internal Carotid Artery Stenting in Combination with Intracranial Thrombectomy in Acute Stroke INTERVENTIONAL
CONCLUSIONS: Emergency ICA stent implantation was technically feasible in all patients, and the intracranial recanalization Thrombolysis in Cerebral Infarction score of ≥2b was reached in a high number of patients. Clinical outcome and mortality seem to be acceptable for a cohort with severe stroke. However, a high rate of symptomatic intracranial hemorrhage occurred in our study.
Source: American Journal of Neuroradiology - April 10, 2014 Category: Radiology Authors: Stampfl, S., Ringleb, P. A., Mohlenbruch, M., Hametner, C., Herweh, C., Pham, M., Bosel, J., Haehnel, S., Bendszus, M., Rohde, S. Tags: INTERVENTIONAL Source Type: research

Inter- and Intraobserver Agreement in Scoring Angiographic Results of Intra-Arterial Stroke Therapy INTERVENTIONAL
CONCLUSIONS: There is an important variability in the assessment of angiographic outcomes of endovascular treatments, invalidating comparisons among publications. A simple dichotomous judgment can be used as a surrogate outcome when treatments are assessed by the same observers in randomized trials.
Source: American Journal of Neuroradiology - June 11, 2014 Category: Radiology Authors: Gaha, M., Roy, C., Estrade, L., Gevry, G., Weill, A., Roy, D., Chagnon, M., Raymond, J. Tags: INTERVENTIONAL Source Type: research

Diffusion-Weighted Imaging with Dual-Echo Echo-Planar Imaging for Better Sensitivity to Acute Stroke BRAIN
CONCLUSIONS: Parallel imaging–enhanced dual-echo diffusion-weighted EPI is a useful method for evaluating lesions with reduced diffusivity. The long TE of echo 2 produced DWIs that exhibited superior lesion conspicuity compared with images acquired at a shorter TE. Echo 1 provided higher SNR ADC maps for specificity to acute infarction. The relaxivity maps may serve to complement information regarding blood products and mineralization.
Source: American Journal of Neuroradiology - July 15, 2014 Category: Radiology Authors: Holdsworth, S. J., Yeom, K. W., Antonucci, M. U., Andre, J. B., Rosenberg, J., Aksoy, M., Straka, M., Fischbein, N. J., Bammer, R., Moseley, M. E., Zaharchuk, G., Skare, S. Tags: BRAIN Source Type: research

Double Solitaire Mechanical Thrombectomy in Acute Stroke: Effective Rescue Strategy for Refractory Artery Occlusions? INTERVENTIONAL
CONCLUSIONS: In this preliminary feasibility study, the double Solitaire stent retriever technique proved to be an effective method for recanalization of anterior circulation large-artery occlusions refractory to standard stent retriever mechanical thrombectomy.
Source: American Journal of Neuroradiology - March 12, 2015 Category: Radiology Authors: Klisch, J., Sychra, V., Strasilla, C., Taschner, C. A., Reinhard, M., Urbach, H., Meckel, S. Tags: INTERVENTIONAL Source Type: research

Qualitative and Quantitative Analysis of MR Imaging Findings in Patients with Middle Cerebral Artery Stroke Implanted with Mesenchymal Stem Cells BRAIN
CONCLUSIONS: Postoperative changes consistent with stereotactic implantation were seen, but no teratoma, tumor, or heterotopia was identified. Initial findings suggest a trend toward less volume loss after mesenchymal stem cell implantation compared with that in age- and sex-matched controls with chronic, stable MCA infarcts, with a significantly greater growth-to-loss ratio in the infarcted tissue.
Source: American Journal of Neuroradiology - June 11, 2015 Category: Radiology Authors: Wanamaker, C. P., Fakhran, S., Alhilali, L. M. Tags: BRAIN Source Type: research

Proton Resonance Frequency Chemical Shift Thermometry: Experimental Design and Validation toward High-Resolution Noninvasive Temperature Monitoring and In Vivo Experience in a Nonhuman Primate Model of Acute Ischemic Stroke FUNCTIONAL
CONCLUSIONS: These findings confirm the comparability in performance of 3 competing approaches to MR thermometry and present in vivo applications under physiologic and ischemic conditions in a primate stroke model.
Source: American Journal of Neuroradiology - June 11, 2015 Category: Radiology Authors: Dehkharghani, S., Mao, H., Howell, L., Zhang, X., Pate, K. S., Magrath, P. R., Tong, F., Wei, L., Qiu, D., Fleischer, C., Oshinski, J. N. Tags: FUNCTIONAL Source Type: research