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Source: American Journal of Neuroradiology

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Total 580 results found since Jan 2013.

Cerebrovascular Disease in COVID-19 ADULT BRAIN
We report a case of COVID-19 with acute ischemic stroke. To our knowledge, this is the first reported case of COVID-19-related cerebral infarcts that includes brain imaging at multiple time points and CT angiography. There is a growing body of published evidence that complications of COVID-19 are not limited to the pulmonary system. Neuroradiologists should be aware of a wide range of neurologic manifestations, including cerebrovascular disease.
Source: American Journal of Neuroradiology - July 12, 2020 Category: Radiology Authors: Goldberg, M. F., Goldberg, M. F., Cerejo, R., Tayal, A. H. Tags: ADULT BRAIN Source Type: research

Surprise Diagnosis of COVID-19 following Neuroimaging Evaluation for Unrelated Reasons during the Pandemic in Hot Spots ADULT BRAIN
We report such a scenario in 17 patients who were admitted and investigated with CT spine imaging and CT angiography for nonpulmonary reasons (trauma = 13, stroke = 4). Their initial work-up did not suggest COVID-19 as a diagnosis but showed unsuspected/incidental lung findings, which led to further investigations and a diagnosis of COVID-19.
Source: American Journal of Neuroradiology - July 12, 2020 Category: Radiology Authors: Jain, R., Young, M., Dogra, S., Kennedy, H., Nguyen, V., Raz, E. Tags: ADULT BRAIN Source Type: research

High Spatiotemporal Resolution 4D Flow MRI of Intracranial Aneurysms at 7T in 10 Minutes ADULT BRAIN
CONCLUSIONS: Highly accelerated high spatiotemporal resolution 4D flow MR imaging at 7T in intracranial arteries and aneurysms provides repeatable and accurate quantitative flow values. Flow rate accuracy is significantly increased compared with conventional 4D flow scans.
Source: American Journal of Neuroradiology - July 12, 2020 Category: Radiology Authors: Gottwald, L. M., Töger, J., Markenroth Bloch, K., Peper, E. S., Coolen, B. F., Strijkers, G. J., van Ooij, P., Nederveen, A. J. Tags: ADULT BRAIN Source Type: research

Stroke Health Care Use and COVID-19 LETTERS
Source: American Journal of Neuroradiology - June 9, 2020 Category: Radiology Authors: Derraz, I. Tags: LETTERS Source Type: research

Multicenter Postmarket Analysis of the Neuroform Atlas Stent for Stent-Assisted Coil Embolization of Intracranial Aneurysms INTERVENTIONAL
CONCLUSIONS: This multicenter analysis provides a real-world safety and efficacy profile for the treatment of intracranial aneurysms with the Neuroform Atlas stent.
Source: American Journal of Neuroradiology - June 9, 2020 Category: Radiology Authors: Burkhardt, J.- K., Srinivasan, V., Srivatsan, A., Albuquerque, F., Ducruet, A. F., Hendricks, B., Gross, B. A., Jankowitz, B. T., Thomas, A. J., Ogilvy, C. S., Maragkos, G. A., Enriquez-Marulanda, A., Crowley, R. W., Levitt, M. R., Kim, L. J., Griessenaue Tags: INTERVENTIONAL Source Type: research

Fast Stent Retrieval Improves Recanalization Rates of Thrombectomy: Experimental Study on Different Thrombi INTERVENTIONAL
CONCLUSIONS: In our experimental model, a fast removal improved recanalization rates of mechanical thrombectomy, especially in the case of fibrin-rich clots. An in vivo confirmation is warranted to see whether our findings can have an impact in clinical practice.
Source: American Journal of Neuroradiology - June 9, 2020 Category: Radiology Authors: Soize, S., Pierot, L., Mirza, M., Gunning, G., Gilvarry, M., Gawlitza, M., Vivien, D., Zuber, M., Touze, E. Tags: INTERVENTIONAL Source Type: research

Relevance of Distal Arterial Collapse in Stenting of Atherosclerotic Near-Occlusion of the Carotid Artery INTERVENTIONAL
CONCLUSIONS: Care should be taken to minimize hyperperfusion risk in patients with near-occlusion undergoing CAS, especially in the subgroup of patients with collapse and in patients with both symptomatic and asymptomatic carotid stenosis.
Source: American Journal of Neuroradiology - June 9, 2020 Category: Radiology Authors: Cay, F., Cil, B. E., Balcı, S., Arsava, E. M., Topcuoglu, M. A., Arat, A. Tags: INTERVENTIONAL Source Type: research

Time to Discontinue Use of the Term Stroke in Neuroradiology LETTERS
Source: American Journal of Neuroradiology - May 14, 2020 Category: Radiology Authors: Ortega, D. A. L., Morillo, A. J., Gonzalez-Gomez, S. Tags: LETTERS Source Type: research

Spatial Resolution and the Magnitude of Infarct Volume Measurement Error in DWI in Acute Ischemic Stroke ADULT BRAIN
CONCLUSIONS: Partial volume effect is an important source of error in infarct volume measurement in acute stroke. Increasing spatial resolution substantially decreases the mean error. Standard use of high-resolution DWI should be considered to increase the reliability of infarct volume measurements.
Source: American Journal of Neuroradiology - May 14, 2020 Category: Radiology Authors: Ospel, J. M., Jaffray, A., Schulze-Zachau, V., Kozerke, S., Federau, C. Tags: ADULT BRAIN Source Type: research

A Critical Assessment of the Golden Hour and the Impact of Procedural Timing in Stroke Thrombectomy INTERVENTIONAL
CONCLUSIONS: Thrombectomy procedural times beyond 60 minutes are associated with lower revascularization rates and worse 90-day outcomes. Procedural time itself was not an independent predictor of outcome. While stroke thrombectomy procedures should be performed rapidly, our study emphasizes the significance of achieving revascularization despite the requisite procedural time. However, the potential for revascularization must be weighed against the risks associated with multiple thrombectomy attempts.
Source: American Journal of Neuroradiology - May 14, 2020 Category: Radiology Authors: Wessell, A. P., Carvalho, H. D. P., Le, E., Cannarsa, G., Kole, M. J., Stokum, J. A., Chryssikos, T., Miller, T. R., Chaturvedi, S., Gandhi, D., Yarbrough, K., Satti, S. R., Jindal, G. Tags: INTERVENTIONAL Source Type: research

MR Thermometry in Cerebrovascular Disease: Physiologic Basis, Hemodynamic Dependence, and a New Frontier in Stroke Imaging ADULT BRAIN
SUMMARY: The remarkable temperature sensitivity of the brain is widely recognized and has been studied for its role in the potentiation of ischemic and other neurologic injuries. Pyrexia frequently complicates large-vessel acute ischemic stroke and develops commonly in critically ill neurologic patients; the profound sensitivity of the brain even to minor intraischemic temperature changes, together with the discovery of brain-to-systemic as well as intracerebral temperature gradients, has thus compelled the exploration of cerebral thermoregulation and uncovered its immutable dependence on cerebral blood flow. A lack of pra...
Source: American Journal of Neuroradiology - April 8, 2020 Category: Radiology Authors: Dehkharghani, S., Qiu, D. Tags: ADULT BRAIN Source Type: research

CT Angiography in Evaluating Large-Vessel Occlusion in Acute Anterior Circulation Ischemic Stroke: Factors Associated with Diagnostic Error in Clinical Practice INTERVENTIONAL
CONCLUSIONS: Several factors may have an association with missing a large-vessel occlusion on CTA, including the CTA interpreter (non-neuroradiologists versus neuroradiologists), large-vessel occlusion location (M2 segment versus the distal internal carotid artery and/or M1 segment), and large-vessel occlusion caused by calcified emboli. Awareness of these factors may improve the accuracy in interpreting CTA and eventually improve stroke outcome.
Source: American Journal of Neuroradiology - April 8, 2020 Category: Radiology Authors: Fasen, B. A. C. M., Heijboer, R. J. J., Hulsmans, F.- J. H., Kwee, R. M. Tags: INTERVENTIONAL Source Type: research

MRI Vessel Wall Imaging after Intra-Arterial Treatment for Acute Ischemic Stroke INTERVENTIONAL
CONCLUSIONS: Patients with intra-arterial treatment by means of thrombosuction showed more (concentric) enhancing foci of the vessel wall ipsilateral compared with contralateral to the treated artery than the patients without intra-arterial treatment, suggesting reactive changes of the vessel wall. This finding should be taken into account when assessing vessel wall MR images in patients with stroke.
Source: American Journal of Neuroradiology - April 8, 2020 Category: Radiology Authors: Lindenholz, A., van der Schaaf, I. C., van der Kolk, A. G., van der Worp, H. B., Harteveld, A. A., Kappelle, L. J., Hendrikse, J. Tags: INTERVENTIONAL Source Type: research

Contrast-Induced Acute Kidney Injury in Radiologic Management of Acute Ischemic Stroke in the Emergency Setting INTERVENTIONAL
CONCLUSIONS: Patients with low baseline renal function had the highest incidence of postcontrast acute kidney injury after CTA and cerebral angiography, but no fatal adverse effects were documented. Thus, patients suspected of having a stroke should be actively managed with respect to neurovascular function.
Source: American Journal of Neuroradiology - April 8, 2020 Category: Radiology Authors: Myung, J. W., Kim, J. H., Cho, J., Park, I., Kim, H. Y., Beom, J. H. Tags: INTERVENTIONAL Source Type: research

White Matter Disease and Outcomes of Mechanical Thrombectomy for Acute Ischemic Stroke INTERVENTIONAL
CONCLUSIONS: Moderate-to-severe white matter disease is associated with worse outcomes in patients undergoing endovascular treatment without a significant increase in hemorrhagic complications. Studies comparing patients with and without endovascular treatment are necessary to determine whether the benefit of endovascular treatment is attenuated with greater white matter disease.
Source: American Journal of Neuroradiology - April 8, 2020 Category: Radiology Authors: Mistry, E. A., Mistry, A. M., Mehta, T., Arora, N., Starosciak, A. K., La Rosa, F. D. L. R., Siegler, J. E., Kasner, S. E., Chitale, R., Fusco, M., Froehler, M., Yaghi, S., Schrag, M., Khatri, P., on behalf of BEST Collaborators Tags: INTERVENTIONAL Source Type: research