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Cost-Effectiveness of CT Angiography and Perfusion Imaging for Delayed Cerebral Ischemia and Vasospasm in Aneurysmal Subarachnoid Hemorrhage EDITOR'S CHOICE
CONCLUSIONS: Our model results suggest that CTA and CTP are the preferred imaging strategy in SAH, compared with transcranial Doppler ultrasound, leading to improved clinical outcomes and lower health care costs.
Source: American Journal of Neuroradiology - September 9, 2014 Category: Radiology Authors: Sanelli, P. C., Pandya, A., Segal, A. Z., Gupta, A., Hurtado-Rua, S., Ivanidze, J., Kesavabhotla, K., Mir, D., Mushlin, A. I., Hunink, M. G. M. Tags: EDITOR ' S CHOICE Source Type: research

A Novel Technique for the Measurement of CBF and CBV with Robot-Arm-Mounted Flat Panel CT in a Large-Animal Model BRAIN
CONCLUSIONS: In this small study, it was feasible to qualitatively measure CBV and CBF by using a flat panel detector angiographic system.
Source: American Journal of Neuroradiology - September 9, 2014 Category: Radiology Authors: Beuing, O., Boese, A., Kyriakou, Y., Deuerling-Zengh, Y., Jollenbeck, B., Scherlach, C., Lenz, A., Serowy, S., Gugel, S., Rose, G., Skalej, M. Tags: BRAIN Source Type: research

One-Year MR Angiographic and Clinical Follow-Up after Intracranial Mechanical Thrombectomy Using a Stent Retriever Device INTERVENTIONAL
CONCLUSIONS: One-year follow-up identifies delayed asymptomatic arterial abnormalities in patients treated with the Solitaire device.
Source: American Journal of Neuroradiology - January 13, 2015 Category: Radiology Authors: Eugene, F., Gauvrit, J.- Y., Ferre, J.- C., Gentric, J.- C., Besseghir, A., Ronziere, T., Raoult, H. Tags: INTERVENTIONAL Source Type: research

Impact of Time-to-Reperfusion on Outcome in Patients with Poor Collaterals EDITOR'S CHOICE
CONCLUSIONS: Time-to-reperfusion including onset-to-reperfusion time and puncture-to-reperfusion time in patients with poor collaterals is an important limiting factor for favorable outcome in a time-dependent fashion. Future trials may benefit from a noninvasive imaging technique to detect poor collaterals along with a strategy for rapid reperfusion.
Source: American Journal of Neuroradiology - March 12, 2015 Category: Radiology Authors: Hwang, Y.- H., Kang, D.- H., Kim, Y.- W., Kim, Y.- S., Park, S.- P., Liebeskind, D. S. Tags: EDITOR ' S CHOICE Source Type: research

Patency of the Anterior Choroidal Artery after Flow-Diversion Treatment of Internal Carotid Artery Aneurysms INTERVENTIONAL
CONCLUSIONS: In this small study, placement of a Pipeline Embolization Device across the anterior choroidal artery ostium resulted in occlusion of the artery in only 1 patient. It was not associated with ischemic changes in the distribution of the anterior choroidal artery in any patient.
Source: American Journal of Neuroradiology - March 12, 2015 Category: Radiology Authors: Brinjikji, W., Kallmes, D. F., Cloft, H. J., Lanzino, G. Tags: INTERVENTIONAL Source Type: research

Endoluminal Reconstruction for Nonsaccular Aneurysms of the Proximal Posterior Cerebral Artery with the Pipeline Embolization Device INTERVENTIONAL
CONCLUSIONS: Endovascular reconstruction with the Pipeline Embolization Device for nonsaccular aneurysms arising from the P1 and P2 segments compares favorably with historical treatment options in terms of occlusion rate, margin of safety, and neurologic outcome.
Source: American Journal of Neuroradiology - July 15, 2015 Category: Radiology Authors: Zumofen, D. W., Shapiro, M., Becske, T., Raz, E., Potts, M. B., Riina, H. A., Nelson, P. K. Tags: INTERVENTIONAL Source Type: research

Reversible Cerebral Vasoconstriction Syndrome, Part 2: Diagnostic Work-Up, Imaging Evaluation, and Differential Diagnosis ADULT BRAIN
SUMMARY: The diagnostic evaluation of a patient with reversible cerebral vasoconstriction syndrome integrates clinical, laboratory, and radiologic findings. Imaging plays an important role by confirming the presence of cerebral vasoconstriction; monitoring potential complications such as ischemic stroke; and suggesting alternative diagnoses, including CNS vasculitis and aneurysmal subarachnoid hemorrhage. Noninvasive vascular imaging, including transcranial Doppler sonography and MR angiography, has played an increasingly important role in this regard, though conventional angiography remains the criterion standard for the ...
Source: American Journal of Neuroradiology - September 10, 2015 Category: Radiology Authors: Miller, T. R., Shivashankar, R., Mossa-Basha, M., Gandhi, D. Tags: ADULT BRAIN Source Type: research

Characterization of Craniocervical Artery Dissection by Simultaneous MR Noncontrast Angiography and Intraplaque Hemorrhage Imaging at 3T INTERVENTIONAL
CONCLUSIONS: 3D simultaneous noncontrast angiography and intraplaque hemorrhage imaging showed excellent agreement with multisequence MR imaging in evaluating luminal stenosis and intramural hematoma in patients with craniocervical artery dissection. The simultaneous noncontrast angiography and intraplaque hemorrhage imaging saved nearly 50% of scanning time compared with multisequence MR imaging. Our findings suggest that 3D simultaneous noncontrast angiography and intraplaque hemorrhage imaging might be an alternative, time-efficient diagnostic tool for craniocervical artery dissection.
Source: American Journal of Neuroradiology - September 10, 2015 Category: Radiology Authors: Li, Q., Wang, J., Chen, H., Gong, X., Ma, N., Gao, K., He, L., Guan, M., Chen, Z., Li, R., Mi, D., Yuan, C., Zhao, X., Zhao, X. H. Tags: INTERVENTIONAL Source Type: research

Posterior Inferior Cerebellar Artery Patency after Flow-Diverting Stent Treatment INTERVENTIONAL
CONCLUSIONS: Flow-diverting stent placement across the PICA ostium in the treatment of vertebral and vertebrobasilar artery aneurysms may not result in immediate or midterm PICA occlusion.
Source: American Journal of Neuroradiology - March 14, 2016 Category: Radiology Authors: Levitt, M. R., Park, M. S., Albuquerque, F. C., Moon, K., Kalani, M. Y. S., McDougall, C. G. Tags: INTERVENTIONAL Source Type: research

C-Arm Conebeam CT Perfusion Imaging in the Angiographic Suite: A Comparison with Multidetector CT Perfusion Imaging ADULT BRAIN
CONCLUSIONS: After postprocessing methods were applied to enhance image quality for conebeam CT perfusion maps, the conebeam CT perfusion maps were not inferior to those generated from multidetector CT perfusion.
Source: American Journal of Neuroradiology - July 13, 2016 Category: Radiology Authors: Niu, K., Yang, P., Wu, Y., Struffert, T., Doerfler, A., Schafer, S., Royalty, K., Strother, C., Chen, G.- H. Tags: ADULT BRAIN Source Type: research

MRI Appearance of Intracerebral Iodinated Contrast Agents: Is It Possible to Distinguish Extravasated Contrast Agent from Hemorrhage? INTERVENTIONAL
CONCLUSIONS: It is unlikely that iodinated contrast agents extravasated into infarcted brain parenchyma cause signal changes that mimic hemorrhage on T1WI, T2WI, and T2*WI. Our results imply that extravasated contrast agents can be distinguished from hemorrhage on MR imaging.
Source: American Journal of Neuroradiology - August 11, 2016 Category: Radiology Authors: Nikoubashman, O., Jablawi, F., Dekeyzer, S., Oros-Peusquens, A. M., Abbas, Z., Lindemeyer, J., Othman, A. E., Shah, N. J., Wiesmann, M. Tags: INTERVENTIONAL Source Type: research

Impact of Pial Collaterals on Infarct Growth Rate in Experimental Acute Ischemic Stroke ADULT BRAIN
CONCLUSIONS: In an experimental permanent MCA occlusion model, assessment of pial collaterals correlates with the infarct growth rate index and has the potential to predict asymptotic infarct volume growth.
Source: American Journal of Neuroradiology - February 12, 2017 Category: Radiology Authors: Christoforidis, G. A., Vakil, P., Ansari, S. A., Dehkordi, F. H., Carroll, T. J. Tags: ADULT BRAIN Source Type: research

Improved Detection of Anterior Circulation Occlusions: The "Delayed Vessel Sign" on Multiphase CT Angiography ADULT BRAIN
CONCLUSIONS: The delayed vessel sign is a reliable indicator of anterior circulation vessel occlusion, particularly in cases involving distal branches. Assessment of the later phases of multiphase CTA for the delayed vessel sign leads to a significant improvement in the speed and confidence of interpretation, compared with single-phase CTA.
Source: American Journal of Neuroradiology - October 6, 2017 Category: Radiology Authors: Byrne, D., Sugrue, G., Stanley, E., Walsh, J. P., Murphy, S., Kavanagh, E. C., MacMahon, P. J. Tags: ADULT BRAIN Source Type: research

Triage in the Angiography Suite for Mechanical Thrombectomy in Acute Ischemic Stroke: Not Such a Good Idea letter
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Clarencon, F., Rosso, C., Degos, V., Shotar, E., Rolla-Bigliani, C., Samson, Y., Alamowitch, S., Sourour, N.- A. Tags: letter Source Type: research

Transient Ischemic Attack and Carotid Web EXTRACRANIAL VASCULAR
CONCLUSIONS: The incidence of carotid web in patients with TIA was 8.9%. There is an association between carotid web and patients with TIA without other identified risks. Carotid web may be an underestimated risk factor for TIA.
Source: American Journal of Neuroradiology - February 13, 2019 Category: Radiology Authors: Hu, H., Zhang, X., Zhao, J., Li, Y., Zhao, Y. Tags: EXTRACRANIAL VASCULAR Source Type: research

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