Filtered By:
Procedure: Perfusion

This page shows you your search results in order of relevance. This is page number 17.

Order by Relevance | Date

Total 4550 results found since Jan 2013.

Agreement and Accuracy of Ischemic Core Volume Evaluated by Three CT Perfusion Software Packages in Acute Ischemic Stroke
To compare the ischemic core volume estimated by CT Perfusion 4D and Vue PACS with that estimated by RAPID software in acute ischemic stroke (AIS).
Source: Journal of Stroke and Cerebrovascular Diseases - June 18, 2021 Category: Neurology Authors: Qin Chen Liu, Zhen Yu Jia, Lin Bo Zhao, Yue Zhou Cao, Gao Ma, Hai Bin Shi, Sheng Liu Source Type: research

POSITIVE: Perfusion imaging selection of ischemic stroke patients for endovascular therapy
Conclusion POSITIVE supports the already established practice of delayed thrombectomy for appropriately selected patients presenting within 0–12 hours selected by perfusion imaging from any vendor. The results of the POSITIVE trial are consistent with other thrombectomy trials. The statistically significant effect on functional improvement, despite the small number of patients, reinforces the robust benefits of thrombectomy. Clinical trial registration NCT01852201
Source: Journal of NeuroInterventional Surgery - January 18, 2022 Category: Neurosurgery Authors: Mocco, J., Siddiqui, A. H., Fiorella, D., Alexander, M. J., Arthur, A. S., Baxter, B. W., Budzik, R. F., Froehler, M. T., Hanel, R. A., Lena, J., Persaud, S., Puri, A. S., Rai, A. T., Wintermark, M., Woodward, K., Zhang, X., Turk, A. Tags: Ischemic stroke Source Type: research

A Deep Learning-Based Automatic Collateral Assessment in Patients with Acute Ischemic Stroke
This study aimed to develop a supervised deep learning (DL) model for grading collateral status from dynamic susceptibility contrast magnetic resonance perfusion (DSC-MRP) images from patients with large vessel occlusion (LVO) acute ischemic stroke (AIS) and compare its performance against experts ’ manual grading. Among consecutive LVO-AIS at three medical center sites, DSC-MRP data were processed to generate collateral flow maps consisting of arterial, capillary, and venous phases. With the use of expert readings as a reference, a DL model was developed to analyze collateral status with o utput classified into good and...
Source: Translational Stroke Research - May 21, 2022 Category: Neurology Source Type: research

Non-contrast head CT alone for thrombectomy in acute ischemic stroke: analysis of the ANGEL-ACT registry
Conclusions In patients selected for MT using NCHCT alone versus NCHCT + NVI, there were improved procedural outcomes and smaller increases in baseline mRS scores at 90 days.
Source: Journal of NeuroInterventional Surgery - August 12, 2022 Category: Neurosurgery Authors: Ren, Z., Ma, G., Mokin, M., Jadhav, A. P., Jia, B., Tong, X., Bauer, C., Liu, R., Wang, A., Zhang, X., Mo, D., Ma, N., Gao, F., Song, L., Sun, X., Huo, X., Deng, Y., Liu, L., Luo, G., Luo, X., Peng, Y., Gui, L., Song, C., Wu, J., Wang, L., Li, C., Jovin, Tags: Ischemic stroke Source Type: research

Quantifying infarct core volume in ischemic stroke: What is the optimal threshold and parameters of computed tomography perfusion?
Although computed tomography perfusion (CTP) is used to select and guide decision-making processes in patients with acute ischemic stroke, there is no clear standardization of the optimal threshold to predict ischemic core volume accurately. The infarct core volume with a relative cerebral blood flow(rCBF) threshold of
Source: Journal of Stroke and Cerebrovascular Diseases - March 20, 2023 Category: Neurology Authors: Chuluunbaatar Otgonbaatar, Ji Ye Lee, Keun-Hwa Jung, Inpyeong Hwang, Roh-Eul Yoo, Koung Mi Kang, Tae Jin Yun, Seung Hong Choi, Ji-Hoon Kim, Chul-Ho Sohn Source Type: research

Post-reperfusion hyperperfusion after endovascular stroke treatment: a prospective comparative study of TCD versus MRI
Conclusions TCD is a reliable bedside tool to identify post-reperfusion hyperperfusion, correlates well with perfusion MRI, and indicates risk of reperfusion injury after MT.
Source: Journal of NeuroInterventional Surgery - September 15, 2023 Category: Neurosurgery Authors: Kneihsl, M., Hinteregger, N., Nistl, O., Deutschmann, H., Horner, S., Poltrum, B., Fandler-Höfler, S., Hatab, I., Haidegger, M., Pinter, D., Pichler, A., Willeit, K., Knoflach, M., Enzinger, C., Gattringer, T. Tags: Ischemic stroke Source Type: research

Intravenous Thrombolysis in Posterior Circulation Stroke
Conclusions: Up to date, no data about PCIS and IVT are available from RTCs. Based on limited results from retrospective clinical studies and case series, IVT is safer for use in PCIS than in ACIS. Patients with brainstem ischemia, vertebral artery occlusion, and absence of basilar or posterior cerebral artery occlusion could be considered for treatment with IVT even in borderline cases. Time to IVT in PCIS seems to be a less crucial factor than in ACIS. IVT for PCIS may be beneficial even after 4.5 h from symptom onset. Introduction History of Intravenous Thrombolysis—The Most Relevant Studies Intravenous...
Source: Frontiers in Neurology - April 25, 2019 Category: Neurology Source Type: research

Combining Human Umbilical Cord Blood Cells With Erythropoietin Enhances Angiogenesis/Neurogenesis and Behavioral Recovery After Stroke
In conclusion, our results suggest that hUCBC infusion in combination with EPO administration demonstrates therapeutic efficacy in the treatment of stroke-induced injury by promoting neurogenesis and angiogenesis. Further research that delineates the therapeutic mechanism of systemically administered hUCBC and EPO is required. Ethics Statement All experimental procedures involving animals were performed in accordance with the Guide for the Care and Use of Laboratory Animals as adopted and promulgated by the U. S. National Institutes of Health and were approved by CHA University Institutional Animal Care & Use Com...
Source: Frontiers in Neurology - April 9, 2019 Category: Neurology Source Type: research

Postreperfusion Blood Pressure Variability After Endovascular Thrombectomy Affects Outcomes in Acute Ischemic Stroke Patients With Poor Collateral Circulation
Conclusion: Postreperfusion BP management by decreasing BPV may have influence on improving clinical outcome in cases of poor collateral circulation among patients achieving successful recanalization after ERT. Introduction Endovascular recanalization therapy (ERT) has been adopted as standard stroke care in patients with acute ischemic stroke (1–6). Time to recanalization and degree of recanalization are the most important predictors of clinical outcomes after ERT (7). Before recanalization, an effort to reduce the time from symptom onset to reperfusion is critical for penumbral salvage. After recanalization...
Source: Frontiers in Neurology - April 11, 2019 Category: Neurology Source Type: research

Conveniently-Grasped Field Assessment Stroke Triage (CG-FAST): A Modified Scale to Detect Large Vessel Occlusion Stroke
Conclusions: CG-FAST scale could be an effective and simple scale for accurate identification of LVOS among AIS patients. Introduction Large vessel occlusion stroke (LVOS) often leads to severe disability and mortality. Although endovascular therapy (EVT) has been proved to be effective for LVOS patients (1–9), especially in anterior circulation, its benefit is highly time-dependent (10, 11). As hospitals with around-the-clock endovascular capability are scarce in many parts of the world and patients admitted directly to a CSC would have better outcomes than those receiving drip and ship treatment (12, 13), t...
Source: Frontiers in Neurology - April 16, 2019 Category: Neurology Source Type: research

Influence of Sex on Stroke Prognosis: A Demographic, Clinical, and Molecular Analysis
Conclusion Our data suggest that women who suffer from IS present with a poorer functional outcome than men at 3-months, regardless of other preclinical and clinical factors during the acute phase. These relationships seem to be mediated by atrial dysfunction and inflammation. The inflammatory response is slightly higher in women; however, there are no sex differences in their functional behavior. There is a probable relationship between the molecular marker of atrial dysfunction NT-proBNP and worse functional outcome in women, and the connection seems to be more important in cardioembolic stroke patients. In patients wi...
Source: Frontiers in Neurology - April 16, 2019 Category: Neurology Source Type: research

Status epilepticus mimicking stroke recurrence.
CONCLUSION: Status epilepticus is not infrequent in patients with previous stroke and may present with negative neurological symptoms, thus mimicking a stroke recurrence. EEG should be considered as a potential diagnostic tool in the acute stroke setting, at least in patients with previous stroke. This article is part of the Special Issue "Seizures & Stroke". PMID: 31629647 [PubMed - as supplied by publisher]
Source: Epilepsy and Behaviour - October 15, 2019 Category: Neurology Authors: Pauletto G, Bax F, Gigli GL, Lorenzut S, Verriello L, Corazza E, Valente M Tags: Epilepsy Behav Source Type: research

Magnetic resonance perfusion imaging provides a significant tool for the identification of cardioembolic stroke.
In conclusion, perfusion MRI could be a reliable tool to identify cardioembolic stroke with its lower collateral. This is important as it could be used to reveal the exact mechanism and provide supportive evidence to classify a stroke. PMID: 27586679 [PubMed - as supplied by publisher]
Source: Current Neurovascular Research - August 31, 2016 Category: Neurology Authors: Lin C, Tsai YH, Lee JD, Weng HH, Yang JT, Lin LC, Lin YH, Wu CY, Huang YC, Hsu HL, Lee M, Hsu CY, Pan YT, Huang YC Tags: Curr Neurovasc Res Source Type: research

Improving diagnosis of childhood stroke arterial ischemic stroke.
Authors: Mackay MT, Monagle P, Babl FE Abstract INTRODUCTION: At least half of childhood stroke survivors suffer long-term impairments. Rapid identification of stroke is essential to minimize the extent of injury by restoring perfusion to viable brain. Improving diagnosis of childhood stroke requires correct identification of stroke by prehospital and emergency physicians, rapid performance of appropriate neuroimaging to confirm infarction, and targeted investigations to determine underlying causes, which guide treatment decisions to reduce recurrence risk. Areas covered: This review will summarize the barriers to rap...
Source: Expert Review of Neurotherapeutics - October 24, 2017 Category: Neurology Tags: Expert Rev Neurother Source Type: research

Status epilepticus mimicking stroke recurrence
This article is part of the Special Issue “Seizures & Stroke”
Source: Epilepsy and Behavior - October 17, 2019 Category: Neurology Source Type: research