scholarly journals Ability of Emergency Physicians to Detect Early Ischemic Changes of Acute Ischemic Stroke on Cranial Computed Tomography

2012 ◽  
Vol 21 (6) ◽  
pp. 534-537 ◽  
Author(s):  
Erden Erol Ünlüer ◽  
Erdem Yaka ◽  
Galip Akhan ◽  
Önder Limon ◽  
Pinar Hanife Kara ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Cranial Computed Tomography ◽  
Emergency Physicians

scholarly journals Structured Reporting of Acute Ischemic Stroke – Consensus-Based Reporting Templates for Non-Contrast Cranial Computed Tomography, CT Angiography, and CT Perfusion

2021 ◽  
Author(s):  
Cornelia Brendle ◽  
Benjamin Bender ◽  
Nadja Selo ◽  
Sven Poli ◽  
Johannes Tünnerhoff ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Ct Angiography ◽  
Ct Perfusion ◽  
German Society ◽  
Structured Reporting ◽  
Cranial Computed Tomography ◽  
Key Points ◽  
Reporting Templates

Purpose Structured reporting is an essential step in establishing standardized quality standards in diagnostic radiology. The German Society of Radiology and the German Society of Neuroradiology aim to provide templates for the structured reporting of different radiological examinations. Method The Information Technology working group of the German Society of Radiology developed structured templates for the radiological reporting of different indications in consensus with specialist support by experts. Results We present a template for the structured reporting of examinations of patients with acute ischemic stroke by non-contrast computed tomography, CT angiography, and CT perfusion. This template is provided on the website www.befundung.drg.de for free use. Conclusion Implementation of the structured template may increase quality and provide a minimum standard for radiological reports in patients with acute ischemic stroke. Key Points: Citation Format

scholarly journals Computed Tomography Using a Low Tube Voltage Technique for Acute Ischemic Stroke

2019 ◽  
Vol 08 (02) ◽  
pp. 24-35
Author(s):  
Kenji Nakamura ◽  
Katsuhiko Maeda ◽  
Masao Tanooka ◽  
Shuhei Aoyama ◽  
Reiichi Ishikura ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Tube Voltage ◽  
Low Tube Voltage

Abstract WMP15: Automated Volumetric Assessment of Infarct Core in Non-Contrast Computed Tomography in Patients With Acute Ischemic Stroke Secondary to Large Vessel Occlusion

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Alvaro Garcia-Tornel ◽  
Matias Deck ◽  
Marc Ribo ◽  
David Rodriguez-Luna ◽  
Jorge Pagola ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Functional Outcome ◽  
Infarct Volume ◽  
Large Vessel Occlusion ◽  
Infarct Core ◽  
Vessel Occlusion ◽  
Good Functional Outcome ◽  
Volumetric Assessment

Introduction: Perfusion imaging has emerged as an imaging tool to select patients with acute ischemic stroke (AIS) secondary to large vessel occlusion (LVO) for endovascular treatment (EVT). We aim to compare an automated method to assess the infarct ischemic core (IC) in Non-Contrast Computed Tomography (NCCT) with Computed Tomography Perfusion (CTP) imaging and its ability to predict functional outcome and final infarct volume (FIV). Methods: 494 patients with anterior circulation stroke treated with EVT were included. Volumetric assessment of IC in NCCT (eA-IC) was calculated using eASPECTS™ (Brainomix, Oxford). CTP was processed using availaible software considering CTP-IC as volume of Cerebral Blood Flow (CBF) <30% comparing with the contralateral hemisphere. FIV was calculated in patients with complete recanalization using a semiautomated method with a NCCT performed 48-72 hours after EVT. Complete recanalization was considered as modified Thrombolysis In Cerebral Ischemia (mTICI) ≥2B after EVT. Good functional outcome was defined as modified Rankin score (mRs) ≤2 at 90 days. Statistical analysis was performed to assess the correlation between EA-IC and CTP-IC and its ability to predict prognosis and FIV. Results: Median eA-IC and CTP-IC were 16 (IQR 7-31) and 8 (IQR 0-28), respectively. 419 patients (85%) achieved complete recanalization, and their median FIV was 17.5cc (IQR 5-52). Good functional outcome was achieved in 230 patients (47%). EA-IC and CTP-IC had moderate correlation between them (r=0.52, p<0.01) and similar correlation with FIV (r=0.52 and 0.51, respectively, p<0.01). Using ROC curves, both methods had similar performance in its ability to predict good functional outcome (EA-IC AUC 0.68 p<0.01, CTP-IC AUC 0.66 p<0.01). Multivariate analysis adjusted by confounding factors showed that eA-IC and CTP-IC predicted good functional outcome (for every 10cc and >40cc, OR 1.5, IC1.3-1.8, p<0.01 and OR 1.3, IC1.1-1.5, p<0.01, respectively). Conclusion: Automated volumetric assessment of infarct core in NCCT has similar performance predicting prognosis and final infarct volume than CTP. Prospective studies should evaluate a NCCT-core / vessel occlusion penumbra missmatch as an alternative method to select patients for EVT.

Abstract 215: Differing Perspectives Between Physicians, Patients And Caregivers On The Value Of An Individualized Estimate Of The Benefits Of Thrombolysis At The Time Of Acute Ischemic Stroke: Designing The Resolve (Rapid Evaluation for Stroke Outcomes using Lytics in Vascular Event) Decision Aid

2013 ◽  
Vol 6 (suppl_1) ◽  
Author(s):  
Carole J Decker ◽  
Emily Chhatriwalla ◽  
Brian Garavalia ◽  
John A Spertus ◽  
Er Chen ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Qualitative Interviews ◽  
Treatment Decision ◽  
Recombinant Tissue Plasminogen Activator ◽  
Active Role ◽  
Cultural Barriers ◽  
Emergency Physicians ◽  
Stroke Treatment ◽  
Risks And Benefits

Background: Explaining the risks and benefits of recombinant tissue plasminogen activator (rt-PA) occurs in a hurried conversation in the emergency department and may not be fully grasped by patients and their caregivers. Risk models describing the heterogeneity of benefits from rt-PA in acute ischemic stroke (AIS) have been created, but are not used in routine clinical practice. To develop a tool (RESOLVE) for modeling each patient’s benefits and risks for rt-PA, we conducted qualitative interviews with survivors, their caregivers and emergency physicians to inform the design and improve usability. Methods: A multidisciplinary research team conducted qualitative research through 10 focus groups of survivors and caregivers. We obtained feedback on their preferred role, desired information and their impressions of alternative formats for presenting risk and benefits. Three emergency physicians from 2 sites have been interviewed (with >15 additional physician interviews being currently conducted, the results of which will supplement these preliminary data at the time of presentation). Results: Survivors and caregivers (63 participants: 39 stroke survivors; 43% male) express a need for more information, including specific risks and benefits to treatment. In general, both groups desired an active role in the acute stroke treatment decision. In contrast, the initial physician interviews indicated a hesitancy to provide NINDS data to patients and caregivers, skepticism of the existing data and cultural barriers to the use of rt-PA in AIS, the latter acquired through residency training or the opinions of their clinical colleagues. The interviewed clinicians, however, felt more positive about using rt-PA when a neurologist was readily available to support the decision. Conclusions: Preliminary findings suggest reluctance by emergency physicians to share data about the benefits of rt-PA to stroke patients and their caregivers, despite the desire of the latter for such information. While the additional planned interviews will be needed to confirm these findings, preliminary insights suggest a compelling need to overcome the reticence of emergency physicians to use clinical data to better engage patients in making a shared decision about rt-PA in AIS.

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