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Source: American Journal of Neuroradiology

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Total 580 results found since Jan 2013.

Redundant Neurovascular Imaging: Who Is to Blame and What Is the Value? research-article
CONCLUSIONS: Of cases with redundant neurovascular imaging, most were generated by clinicians, but radiologists recommended redundant neurovascular imaging in 17.6% of patients; 81.8% occurred following MRA. Overall, most secondary studies (68.8%) confirmed the findings of the first study. Such low-value, same-result redundant neurovascular imaging was more common when clinicians ordered the studies (73.8%) than when radiologists ordered them (54.6%).
Source: American Journal of Neuroradiology - January 9, 2020 Category: Radiology Authors: Beheshtian, E., Emamzadehfard, S., Sahraian, S., Jalilianhasanpour, R., Yousem, D. M. Tags: research-article Source Type: research

Prediction of Hemorrhage after Successful Recanalization in Patients with Acute Ischemic Stroke: Improved Risk Stratification Using Dual-Energy CT Parenchymal Iodine Concentration Ratio Relative to the Superior Sagittal Sinus ADULT BRAIN
CONCLUSIONS: Within our cohort of patients, the relative percentage of iodine concentration at dual-energy CT compared with the superior sagittal sinus was a reliable predictor of intracerebral hemorrhage development and may be a useful imaging biomarker for risk stratification after endovascular treatment.
Source: American Journal of Neuroradiology - January 9, 2020 Category: Radiology Authors: Byrne, D., Walsh, J. P., Schmiedeskamp, H., Settecase, F., Heran, M. K. S., Niu, B., Salmeen, A. K., Rohr, B., Field, T. S., Murray, N., Rohr, A. Tags: ADULT BRAIN Source Type: research

Diffusion Properties of Normal-Appearing White Matter Microstructure and Severity of Motor Impairment in Acute Ischemic Stroke FUNCTIONAL
CONCLUSIONS: The microstructural integrity of normal-appearing white matter is a significant parameter to identify neural differences not only between those individuals with and without acute ischemic stroke but also correlated with the severity of acute motor impairment.
Source: American Journal of Neuroradiology - January 9, 2020 Category: Radiology Authors: Ingo, C., Lin, C., Higgins, J., Arevalo, Y. A., Prabhakaran, S. Tags: FUNCTIONAL Source Type: research

Vessel Wall Thickening and Enhancement in High-Resolution Intracranial Vessel Wall Imaging: A Predictor of Future Ischemic Events in Moyamoya Disease ADULT BRAIN
CONCLUSIONS: High-resolution intracranial vessel wall imaging characteristics of concentric wall thickening and enhancement are relatively rare in our cohort of patients with Moyamoya disease. The presence of wall thickening and enhancement may predict future ischemic events in patients with Moyamoya disease.
Source: American Journal of Neuroradiology - January 9, 2020 Category: Radiology Authors: Kathuveetil, A., Sylaja, P. N., Senthilvelan, S., Chandrasekharan, K., Banerjee, M., Jayanand Sudhir, B. Tags: ADULT BRAIN Source Type: research

Emergency Conversion to General Anesthesia Is a Tolerable Risk in Patients Undergoing Mechanical Thrombectomy INTERVENTIONAL
CONCLUSIONS: Patients with emergency conversion did not have lower chances of successful reperfusion or functional independence compared those with primary general anesthesia, and time to flow restoration was also similar. We found no evidence supporting the primary induction of general anesthesia in patients at risk for emergency conversion.
Source: American Journal of Neuroradiology - January 9, 2020 Category: Radiology Authors: Flottmann, F., Leischner, H., Broocks, G., Faizy, T. D., Aigner, A., Deb-Chatterji, M., Thomalla, G., Krauel, J., Issleib, M., Fiehler, J., Brekenfeld, C. Tags: INTERVENTIONAL Source Type: research

Imaging Triage of Patients with Late-Window (6-24 Hours) Acute Ischemic Stroke: A Comparative Study Using Multiphase CT Angiography versus CT Perfusion INTERVENTIONAL
CONCLUSIONS: The collateral-based imaging paradigm using multiphase CTA compares well with CTP in selecting patients for endovascular thrombectomy in the late time window.
Source: American Journal of Neuroradiology - January 9, 2020 Category: Radiology Authors: Almekhlafi, M. A., Kunz, W. G., McTaggart, R. A., Jayaraman, M. V., Najm, M., Ahn, S. H., Fainardi, E., Rubiera, M., Khaw, A. V., Zini, A., Hill, M. D., Demchuk, A. M., Goyal, M., Menon, B. K. Tags: INTERVENTIONAL Source Type: research

Predicting Ischemic Risk Using Blood Oxygen Level-Dependent MRI in Children with Moyamoya FUNCTIONAL
CONCLUSIONS: Our study demonstrates that idiopathic moyamoya and the presence of steal are independently associated with ischemic events. The use of blood oxygen level–dependent cerebrovascular reactivity could potentially assist in the selection of patients for revascularization surgery and the direction of therapy in children with moyamoya.
Source: American Journal of Neuroradiology - January 9, 2020 Category: Radiology Authors: Dlamini, N., Slim, M., Kirkham, F., Shroff, M., Dirks, P., Moharir, M., MacGregor, D., Robertson, A., deVeber, G., Logan, W. Tags: FUNCTIONAL Source Type: research

Acute Cortical Lesions in MELAS Syndrome: Anatomic Distribution, Symmetry, and Evolution PEDIATRICS
CONCLUSIONS: Acute cortical lesions in MELAS most commonly affect the primary visual, somatosensory, and auditory cortices, all regions of high neuronal density and metabolic demand. The most common pattern of temporal evolution is acute cortical diffusion restriction with subacute cortical laminar necrosis and chronic volume loss. Symmetric involvement is more common than previously described.
Source: American Journal of Neuroradiology - January 9, 2020 Category: Radiology Authors: Bhatia, K. D., Krishnan, P., Kortman, H., Klostranec, J., Krings, T. Tags: PEDIATRICS Source Type: research

Cost and Utility of Routine Contrast-Enhanced Neck MRA in a Pediatric MRI Stroke Evaluation Protocol PEDIATRICS
CONCLUSIONS: In our large series, the addition of a routine contrast-enhanced neck MRA to our pediatric stroke MR imaging protocol was of extremely low yield. We believe the use of neck MRA should reasonably be limited to cases in which abnormalities are initially detected on standard brain sequences or to patients with atypical presentation or recurrent pathology.
Source: American Journal of Neuroradiology - December 12, 2019 Category: Radiology Authors: Baltensperger, A., Mirsky, D., Maloney, J., Neuberger, I., Fenton, L., Bernard, T., Borgstede, J., Stence, N. Tags: PEDIATRICS Source Type: research

Intracranial Atherosclerotic Burden on 7T MRI Is Associated with Markers of Extracranial Atherosclerosis: The SMART-MR Study ADULT BRAIN
CONCLUSIONS: Intracranial atherosclerosis was associated with various extracranial markers of atherosclerosis, not supporting a different etiology.
Source: American Journal of Neuroradiology - December 12, 2019 Category: Radiology Authors: Zwartbol, M. H. T., Geerlings, M. I., Ghaznawi, R., Hendrikse, J., van der Kolk, A. G., on behalf of the UCC-SMART Study Group Tags: ADULT BRAIN Source Type: research

Automated ASPECTS in Acute Ischemic Stroke: A Comparative Analysis with CT Perfusion ADULT BRAIN
CONCLUSIONS: ASPECTS derived from an automated software performs equally as well as consensus reads of expert neuroradiologists and concurrent CTP-CBV ASPECTS and can be used to standardize ASPECTS reporting and minimize interpretation variability.
Source: American Journal of Neuroradiology - December 12, 2019 Category: Radiology Authors: Sundaram, V. K., Goldstein, J., Wheelwright, D., Aggarwal, A., Pawha, P. S., Doshi, A., Fifi, J. T., Leacy, R. D., Mocco, J., Puig, J., Nael, K. Tags: ADULT BRAIN Source Type: research

Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke ADULT BRAIN
CONCLUSIONS: The MCA plaque hyperintensity on T2-weighted vessel wall imaging is independently associated with ischemic stroke and adds value to symptomatic MCA plaque classification. Measuring the normalized signal intensity may serve as a practical and integrative approach to the analysis of intracranial atherosclerotic plaque.
Source: American Journal of Neuroradiology - November 12, 2019 Category: Radiology Authors: Yu, Y.- N., Liu, M.- W., Villablanca, J. P., Li, M.- L., Xu, Y.- Y., Gao, S., Feng, F., Liebeskind, D. S., Scalzo, F., Xu, W.- H. Tags: ADULT BRAIN Source Type: research

Time to Discontinue Use of the Term "Hemorrhagic Stroke" EDITORIALS
Source: American Journal of Neuroradiology - November 12, 2019 Category: Radiology Authors: Aftab, M., Salman, M. Tags: EDITORIALS Source Type: research

The Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment Modalities INTERVENTIONAL
CONCLUSIONS: When treating intracranial vertebrobasilar dissecting aneurysms with brain stem compression, parent artery occlusion and flow diversion should be considered to reduce aneurysm size and improve the mRS score.
Source: American Journal of Neuroradiology - November 12, 2019 Category: Radiology Authors: Cho, D. Y., Kim, B.- S., Choi, J. H., Park, Y. K., Shin, Y. S. Tags: INTERVENTIONAL Source Type: research

Diagnostic Impact of Intracranial Vessel Wall MRI in 205 Patients with Ischemic Stroke or TIA ADULT BRAIN
CONCLUSIONS: When vessel wall MR imaging is performed to clarify the etiology of a stroke or TIA, it frequently alters the etiologic classification. This is important because the etiologic classification is the basis for therapeutic decision-making.
Source: American Journal of Neuroradiology - October 7, 2019 Category: Radiology Authors: Schaafsma, J. D., Rawal, S., Coutinho, J. M., Rasheedi, J., Mikulis, D. J., Jaigobin, C., Silver, F. L., Mandell, D. M. Tags: ADULT BRAIN Source Type: research