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Source: American Journal of Neuroradiology

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Total 580 results found since Jan 2013.

Focal Low and Global High Permeability Predict the Possibility, Risk, and Location of Hemorrhagic Transformation following Intra-Arterial Thrombolysis Therapy in Acute Stroke INTERVENTIONAL
CONCLUSIONS: Global high Ktrans values can predict the likelihood of hemorrhagic transformation or symptomatic intracranial hemorrhage at the patient level, whereas focal low Ktrans values can predict the spatial distributions of hemorrhagic transformation at the region level.
Source: American Journal of Neuroradiology - September 8, 2017 Category: Radiology Authors: Li, Y., Xia, Y., Chen, H., Liu, N., Jackson, A., Wintermark, M., Zhang, Y., Hu, J., Wu, B., Zhang, W., Tu, J., Su, Z., Zhu, G. Tags: INTERVENTIONAL Source Type: research

Value of Thrombus CT Characteristics in Patients with Acute Ischemic Stroke ADULT BRAIN
CONCLUSIONS: In our study on patients with large-vessel occlusion of the anterior circulation, CT thrombus characteristics appear useful for predicting functional outcome. However, in our study cohort, the effect of intra-arterial treatment was independent of the thrombus CT characteristics. Therefore, no arguments were provided to select patients for intra-arterial treatment using thrombus CT characteristics.
Source: American Journal of Neuroradiology - September 8, 2017 Category: Radiology Authors: Borst, J., Berkhemer, O. A., Santos, E. M. M., Yoo, A. J., den Blanken, M., Roos, Y. B. W. E. M., van Bavel, E., van Zwam, W. H., van Oostenbrugge, R. J., Lingsma, H. F., van der Lugt, A., Dippel, D. W. J., Marquering, H. A., Majoie, C. B. L. M., on behal Tags: ADULT BRAIN Source Type: research

Iodine Extravasation Quantification on Dual-Energy CT of the Brain Performed after Mechanical Thrombectomy for Acute Ischemic Stroke Can Predict Hemorrhagic Complications INTERVENTIONAL
CONCLUSIONS: The presence of parenchymal hyperdensity with a maximum iodine concentration of >1.35 mg/mL may identify patients developing intracerebral hemorrhage with 100% sensitivity and 67.6% specificity.
Source: American Journal of Neuroradiology - March 14, 2018 Category: Radiology Authors: Bonatti, M., Lombardo, F., Zamboni, G. A., Vittadello, F., Curro Dossi, R., Bonetti, B., Pozzi Mucelli, R., Bonatti, G. Tags: INTERVENTIONAL Source Type: research

Accuracy of CT Angiography for Differentiating Pseudo-Occlusion from True Occlusion or High-Grade Stenosis of the Extracranial ICA in Acute Ischemic Stroke: A Retrospective MR CLEAN Substudy INTERVENTIONAL
CONCLUSIONS: On CTA, extracranial ICA pseudo-occlusions can be differentiated from true carotid occlusions.
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Kappelhof, M., Marquering, H. A., Berkhemer, O. A., Borst, J., van der Lugt, A., van Zwam, W. H., Vos, J. A., Lycklama a Nijeholt, G., Majoie, C. B. L. M., Emmer, B. J., on behalf of the MR CLEAN Investigators Tags: INTERVENTIONAL Source Type: research

MR Imaging for Differentiating Contrast Staining from Hemorrhagic Transformation after Endovascular Thrombectomy in Acute Ischemic Stroke: Phantom and Patient Study ADULT BRAIN
CONCLUSIONS: According to our preliminary results, contrast staining might be differentiated from hemorrhagic transformation using an immediate postinterventional DWI protocol including gradient recalled-echo sequences. It might be possible to expedite establishment of postinterventional medical treatment strategy.
Source: American Journal of Neuroradiology - December 14, 2018 Category: Radiology Authors: You, S.- H., Kim, B., Kim, B. K., Suh, S.- i. Tags: ADULT BRAIN Source Type: research

Radiomics-Based Intracranial Thrombus Features on CT and CTA Predict Recanalization with Intravenous Alteplase in Patients with Acute Ischemic Stroke FUNCTIONAL
CONCLUSIONS: Thrombus radiomics features derived from NCCT and CTA are more predictive of recanalization with IV alteplase in patients with acute ischemic stroke with proximal occlusion than previously known thrombus imaging features such as length, volume, and permeability.
Source: American Journal of Neuroradiology - January 11, 2019 Category: Radiology Authors: Qiu, W., Kuang, H., Nair, J., Assis, Z., Najm, M., McDougall, C., McDougall, B., Chung, K., Wilson, A. T., Goyal, M., Hill, M. D., Demchuk, A. M., Menon, B. K. Tags: FUNCTIONAL Source Type: research

Clinical Outcome after Thrombectomy in Patients with Stroke with Premorbid Modified Rankin Scale Scores of 3 and 4: A Cohort Study with 136 Patients INTERVENTIONAL
CONCLUSIONS: Good outcome in patients with premorbid mRS 3 and 4 is less frequent compared with premorbid mRS 0–2. Nevertheless, about 20% of the patients return to their premorbid mRS, which may justify endovascular treatment. The most important predictor of good outcome is successful recanalization.
Source: American Journal of Neuroradiology - February 13, 2019 Category: Radiology Authors: Seker, F., Pfaff, J., Schönenberger, S., Herweh, C., Nagel, S., Ringleb, P. A., Bendszus, M., Möhlenbruch, M. A. Tags: INTERVENTIONAL Source Type: research

Risk of Acute Kidney Injury with Consecutive, Multidose Use of Iodinated Contrast in Patients with Acute Ischemic Stroke PATIENT SAFETY
SUMMARY: Currently, CTA is the imaging technique most frequently used to evaluate acute ischemic stroke, and patients with intracranial large-vessel occlusion usually undergo endovascular treatment. This single-center, prospective, cohort study showed that consecutive, multidose use of contrast during CTA and DSA does not increase the incidence of acute kidney injury in patients with acute ischemic stroke, though acute kidney injury tended to have a higher incidence in the contrast multiexposure group (P = .172).
Source: American Journal of Neuroradiology - April 10, 2019 Category: Radiology Authors: Jia, Z. Y., Wang, S. X., Zhao, L. B., Cao, Y. Z., Shi, H. B., Liu, S. Tags: PATIENT SAFETY Source Type: research

First-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of Success INTERVENTIONAL
CONCLUSIONS: The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Source: American Journal of Neuroradiology - June 11, 2019 Category: Radiology Authors: Marnat, G., Barreau, X., Detraz, L., Bourcier, R., Gory, B., Sgreccia, A., Gariel, F., Berge, J., Menegon, P., Kyheng, M., Labreuche, J., Consoli, A., Blanc, R., Lapergue, B., on behalf of the ETIS Investigators Tags: INTERVENTIONAL Source Type: research

The Association between FLAIR Vascular Hyperintensity and Stroke Outcome Varies with Time from Onset ADULT BRAIN
CONCLUSIONS: FLAIR vascular hyperintensity is associated with unfavorable outcome within 6 hours to 14 days of onset, while the wider distribution of distal FLAIR vascular hyperintensity may be favorable beyond 14 days of onset in MCA infarction. Symptom-to-MR imaging time should be considered when assessing the prognostic value of FLAIR vascular hyperintensity.
Source: American Journal of Neuroradiology - August 13, 2019 Category: Radiology Authors: Shang, W. J., Chen, H. B., Shu, L. M., Liao, H. Q., Huang, X. Y., Xiao, S., Hong, H. Tags: ADULT BRAIN Source Type: research

Defining Ischemic Core in Acute Ischemic Stroke Using CT Perfusion: A Multiparametric Bayesian-Based Model ADULT BRAIN
CONCLUSIONS: We established thresholds for the Bayesian model to estimate the ischemic core. The described multiparametric Bayesian-based model improved consistency in CTP estimation of the ischemic core compared with the methodology used in current clinical routine.
Source: American Journal of Neuroradiology - September 3, 2019 Category: Radiology Authors: Nael, K., Tadayon, E., Wheelwright, D., Metry, A., Fifi, J. T., Tuhrim, S., De Leacy, R. A., Doshi, A. H., Chang, H. L., Mocco, J. Tags: ADULT BRAIN Source Type: research

Assessment of a Bayesian Vitrea CT Perfusion Analysis to Predict Final Infarct and Penumbra Volumes in Patients with Acute Ischemic Stroke: A Comparison with RAPID ADULT BRAIN
CONCLUSIONS: Compared with RAPID, the Vitrea default setting was noninferior for patients with interventions and superior in penumbra estimation for patients without interventions as indicated by mean infarct differences and correlations with final infarct volumes.
Source: American Journal of Neuroradiology - February 11, 2020 Category: Radiology Authors: Rava, R. A., Snyder, K. V., Mokin, M., Waqas, M., Allman, A. B., Senko, J. L., Podgorsak, A. R., Shiraz Bhurwani, M. M., Hoi, Y., Siddiqui, A. H., Davies, J. M., Levy, E. I., Ionita, C. N. Tags: ADULT BRAIN Source Type: research

How Do Physicians Approach Intravenous Alteplase Treatment in Patients with Acute Ischemic Stroke Who Are Eligible for Intravenous Alteplase and Endovascular Therapy? Insights from UNMASK-EVT INTERVENTIONAL
CONCLUSIONS: In patients eligible for endovascular therapy and intravenous alteplase, we observed a slightly lower decision rate in favor of intravenous alteplase under assumed ideal conditions compared with the decision rate under current local resources.
Source: American Journal of Neuroradiology - February 11, 2020 Category: Radiology Authors: Ospel, J. M., Kashani, N., Fischer, U., Menon, B. K., Almekhlafi, M., Wilson, A. T., Foss, M. M., Saposnik, G., Goyal, M., Hill, M. D. Tags: INTERVENTIONAL Source Type: research

Fractional Flow on TOF-MRA as a Measure of Stroke Risk in Children with Intracranial Arterial Stenosis PEDIATRICS
CONCLUSIONS: Signal intensity ratios from TOF-MRA can serve as a noninvasive measure of intracranial arterial stenosis and allow identification of high-risk lesions in pediatric stroke.
Source: American Journal of Neuroradiology - March 16, 2020 Category: Radiology Authors: Ibrahim, A. Y., Amirabadi, A., Shroff, M. M., Dlamini, N., Dirks, P., Muthusami, P. Tags: PEDIATRICS 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