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Source: American Journal of Neuroradiology
Procedure: Perfusion

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Total 88 results found since Jan 2013.

Acute Ischemic Stroke or Epileptic Seizure? Yield of CT Perfusion in a "Code Stroke" Situation FUNCTIONAL
CONCLUSIONS: CTP patterns helped to differentiate acute ischemic stroke from epileptic seizure in a "code stroke" situation. Our results indicate that a hyperperfusion pattern, especially if not restricted to a vascular territory, may suggest reconsideration of intravenous thrombolysis therapy.
Source: American Journal of Neuroradiology - January 11, 2021 Category: Radiology Authors: Lucas, L., Gariel, F., Menegon, P., Aupy, J., Thomas, B., Tourdias, T., Sibon, I., Renou, P. Tags: FUNCTIONAL Source Type: research

Large Culprit Plaque and More Intracranial Plaques Are Associated with Recurrent Stroke: A Case-Control Study Using Vessel Wall Imaging ADULT BRAIN
CONCLUSIONS: Large culprit plaque and more intracranial plaques were independently associated with recurrent stroke. Performing whole-brain vessel wall imaging may help identify patients with a higher risk of recurrent stroke.
Source: American Journal of Neuroradiology - February 4, 2022 Category: Radiology Authors: Wu, G., Wang, H., Zhao, C., Cao, C., Chai, C., Huang, L., Guo, Y., Gong, Z., Tirschwell, D. L., Zhu, C., Xia, S. Tags: ADULT BRAIN Source Type: research

Susceptibility-Weighted Imaging in Pediatric Arterial Ischemic Stroke: A Valuable Alternative for the Noninvasive Evaluation of Altered Cerebral Hemodynamics FELLOWS' JOURNAL CLUB
CONCLUSIONS: SWI-DTI mismatch predicts stroke progression in pediatric arterial ischemic stroke. SWI-hyperintense signal is not useful for predicting the development of malignant edema. SWI should be routinely added to the neuroimaging diagnostic protocol of pediatric arterial ischemic stroke.
Source: American Journal of Neuroradiology - April 10, 2015 Category: Radiology Authors: Polan, R. M., Poretti, A., Huisman, T. A. G. M., Bosemani, T. Tags: FELLOWS ' JOURNAL CLUB Source Type: research

Prediction of the Multisegment Clot Sign on Dynamic CT Angiography of Cardioembolic Stroke ADULT BRAIN
CONCLUSIONS: The presence of the multisegment clot sign on dynamic CTA specifically indicates intracranial large-artery occlusion caused by an embolism from a cardiac source, which may be useful for acute management and secondary prevention of stroke.
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Chen, Z., Shi, F., Zhang, M., Gong, X., Lin, L., Lou, M. Tags: ADULT BRAIN Source Type: research

Stroke Mimics in the Acute Setting: Role of Multimodal CT Protocol ADULT BRAIN
CONCLUSIONS: Multimodal CT demonstrated low sensitivity but high specificity in the diagnosis of stroke mimics in the acute setting. The high specificity of multimodal CT allows ruling out stroke and thereby avoiding unnecessary revascularization treatment in patients with diagnosis of a stroke mimic.
Source: American Journal of Neuroradiology - February 4, 2022 Category: Radiology Authors: Prodi, E., Danieli, L., Manno, C., Pagnamenta, A., Pravata, E., Roccatagliata, L., Städler, C., Cereda, C. W., Cianfoni, A. Tags: ADULT BRAIN Source Type: research

Mechanical Thrombectomy Using the New ERIC Retrieval Device Is Feasible, Efficient, and Safe in Acute Ischemic Stroke: A Swiss Stroke Center Experience INTERVENTIONAL
CONCLUSIONS: In this observational study, the new ERIC retrieval device was technically feasible, safe, and effective in acute ischemic stroke with large-vessel occlusion.
Source: American Journal of Neuroradiology - January 13, 2016 Category: Radiology Authors: Kahles, T., Garcia-Esperon, C., Zeller, S., Hlavica, M., Anon, J., Diepers, M., Nedeltchev, K., Remonda, L. Tags: INTERVENTIONAL Source Type: research

Focal Hypoperfusion in Acute Ischemic Stroke Perfusion CT: Clinical and Radiologic Predictors and Accuracy for Infarct Prediction ADULT BRAIN
CONCLUSIONS: Compared with NCCT, perfusion CT doubles the sensitivity in detecting acute ischemic stroke. Focal hypoperfusion is independently predicted by stroke severity, cortical clinical deficits, nonlacunar supratentorial strokes, and shorter onset-to-imaging delays. A high proportion of patients with focal hypoperfusion developed infarction on subsequent imaging, as did some patients without focal hypoperfusion, indicating the complementarity of perfusion CT and MR imaging in acute ischemic stroke.
Source: American Journal of Neuroradiology - March 13, 2019 Category: Radiology Authors: Bill, O., Inacio, N. M., Lambrou, D., Wintermark, M., Ntaios, G., Dunet, V., Michel, P. Tags: ADULT BRAIN Source Type: research

Combined Low-Dose Contrast-Enhanced MR Angiography and Perfusion for Acute Ischemic Stroke at 3T: A More Efficient Stroke Protocol EVIDENCE-BASED MEDICINE LEVEL 2
CONCLUSIONS: In patients with acute stroke, combined low-dose contrast-enhanced MRA and dynamic susceptibility contrast perfusion at 3T is feasible and results in significant scan time and contrast dose reductions.
Source: American Journal of Neuroradiology - June 11, 2014 Category: Radiology Authors: Nael, K., Meshksar, A., Ellingson, B., Pirastehfar, M., Salamon, N., Finn, P., Liebeskind, D. S., Villablanca, J. P. Tags: EVIDENCE-BASED MEDICINE LEVEL 2 Source Type: research

Combining MRI with NIHSS Thresholds to Predict Outcome in Acute Ischemic Stroke: Value for Patient Selection BRAIN
CONCLUSIONS: Our predictive model is validated in a much larger patient cohort. Outcome may be predicted in up to two-thirds of patients, and thresholds are affected by stroke side and reperfusion therapy.
Source: American Journal of Neuroradiology - February 11, 2015 Category: Radiology Authors: Schaefer, P. W., Pulli, B., Copen, W. A., Hirsch, J. A., Leslie-Mazwi, T., Schwamm, L. H., Wu, O., Gonzalez, R. G., Yoo, A. J. Tags: BRAIN Source Type: research

Correlation between ASPECTS and Core Volume on CT Perfusion: Impact of Time since Stroke Onset and Presence of Large-Vessel Occlusion FUNCTIONAL
CONCLUSIONS: In a large cohort of patients with acute ischemic stroke, we found a moderate correlation between ASPECTS and CTP core. However, this was stronger in patients with large-vessel occlusion and longer delay from stroke onset. Our results could support the use of ASPECTS as a surrogate marker of CTP core in late-arriving patients with acute ischemic stroke with large-vessel occlusion.
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Nannoni, S., Ricciardi, F., Strambo, D., Sirimarco, G., Wintermark, M., Dunet, V., Michel, P. Tags: FUNCTIONAL Source Type: research

Quantitative Collateral Assessment on CTP in the Prediction of Stroke Etiology FUNCTIONAL
CONCLUSIONS: Patients with large-artery atherosclerosis had a more adequate collateral perfusion supply with the new quantitative collateral assessment. The new quantitative collateral measurement might contribute to the prediction of stroke etiology in the acute clinical scenario for patients with acute ischemic stroke.
Source: American Journal of Neuroradiology - July 7, 2022 Category: Radiology Authors: Shi, F., Zeng, Q., Gong, X., Zhong, W., Chen, Z., Yan, S., Lou, M. Tags: FUNCTIONAL Source Type: research

Association of CT Perfusion Parameters with Hemorrhagic Transformation in Acute Ischemic Stroke EDITOR'S CHOICE
CONCLUSIONS: Of the examined CTP parameters, only lower rCBV was found to be significantly associated with a relatively higher chance of hemorrhagic transformation.
Source: American Journal of Neuroradiology - October 8, 2013 Category: Radiology Authors: Jain, A. R., Jain, M., Kanthala, A. R., Damania, D., Stead, L. G., Wang, H. Z., Jahromi, B. S. Tags: EDITOR ' S CHOICE Source Type: research

Relative Filling Time Delay Based on CT Perfusion Source Imaging: A Simple Method to Predict Outcome in Acute Ischemic Stroke BRAIN
CONCLUSIONS: Relative filling time delay is a useful independent predictor of clinical outcome after ischemic stroke.
Source: American Journal of Neuroradiology - September 9, 2014 Category: Radiology Authors: Cao, W., Campbell, B. C. V., Dong, Q., Davis, S. M., Yan, B. Tags: BRAIN Source Type: research

Emergent Endovascular Management of Long-Segment and Flow-Limiting Carotid Artery Dissections in Acute Ischemic Stroke Intervention with Multiple Tandem Stents EXTRACRANIAL VASCULAR
CONCLUSIONS: Emergent stent reconstruction of long-segment and flow-limiting carotid dissections in acute ischemic stroke intervention is safe and effective, with favorable clinical outcomes, allowing successful thrombectomy, vessel salvage, restoration of cerebral perfusion, and/or prevention of recurrent thromboembolic stroke.
Source: American Journal of Neuroradiology - January 10, 2017 Category: Radiology Authors: Ansari, S. A., Kühn, A. L., Honarmand, A. R., Khan, M., Hurley, M. C., Potts, M. B., Jahromi, B. S., Shaibani, A., Gounis, M. J., Wakhloo, A. K., Puri, A. S. Tags: EXTRACRANIAL VASCULAR Source Type: research

Clinical Outcomes of Endovascular Treatment within 24 Hours in Patients with Mild Ischemic Stroke and Perfusion Imaging Selection INTERVENTIONAL
CONCLUSIONS: Patients with mild ischemic stroke and large-vessel occlusion in the anterior circulation, an imaging mismatch, and endovascular treatment within 6–24 hours of initial symptoms showed no heterogeneity in the efficacy and safety outcome compared with those treated ≤6 hours from symptom onset.
Source: American Journal of Neuroradiology - June 13, 2018 Category: Radiology Authors: Shang, X., Lin, M., Zhang, S., Li, S., Guo, Y., Wang, W., Zhang, M., Wan, Y., Zhou, Z., Zi, W., Liu, X. Tags: INTERVENTIONAL Source Type: research