BAR, Michal, Jiří KRÁL, Tomas JONSZTA, Vaclav MARCIAN, Martin KULIHA and Robert MIKULÍK. Interrater variability for CT angiography evaluation between neurologists and neuroradiologist in acute stroke patients. BRITISH JOURNAL OF RADIOLOGY. LONDON: BRITISH INST RADIOLOGY, 2017, vol. 90, No 1071, p. 1-7. ISSN 0007-1285. Available from: https://dx.doi.org/10.1259/bjr.20160670.
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Basic information
Original name Interrater variability for CT angiography evaluation between neurologists and neuroradiologist in acute stroke patients
Authors BAR, Michal (203 Czech Republic), Jiří KRÁL (203 Czech Republic, belonging to the institution), Tomas JONSZTA (203 Czech Republic), Vaclav MARCIAN (203 Czech Republic), Martin KULIHA (203 Czech Republic) and Robert MIKULÍK (203 Czech Republic, guarantor, belonging to the institution).
Edition BRITISH JOURNAL OF RADIOLOGY, LONDON, BRITISH INST RADIOLOGY, 2017, 0007-1285.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30224 Radiology, nuclear medicine and medical imaging
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 1.814
RIV identification code RIV/00216224:14110/17:00100388
Organization unit Faculty of Medicine
Doi http://dx.doi.org/10.1259/bjr.20160670
UT WoS 000396597200011
Keywords in English CT angiography evaluation; acute stroke patient
Tags EL OK
Tags International impact, Reviewed
Changed by Changed by: Soňa Böhmová, učo 232884. Changed: 26/4/2018 10:39.
Abstract
Objective: The diagnosis of arterial occlusion has a considerable impact on the indication of mechanical thrombectomy, and CT angiography (CTA) is recommended in the management of acute stroke. The goal of the present study is to assess the interrater agreement in the diagnosis of occlusion of intracranial arteries on CTA between a neuroradiologist and neurologists. Methods: CTA images of 75 acute stroke patients were evaluated for occlusion of intracranial arteries by an experienced interventional neuroradiologist, and stroke and general neurologists. Results: 75 patients who were treated by intravenous thrombolysis were enrolled in the study. CTA images were available for all 75 patients (34 females; mean age +/- SD, 72 +/- 14 years; National Institutes of Health Stroke Scale 10; median 8-14; and Alberta Stroke Program Early CT mean 9.7). The agreement between the neuroradiologist and neurologists in evaluation of intracranial artery occlusion was as follows: occlusion of the middle cerebral artery segment M1: observer agreement 77%, kappa (kappa) = 0.61 and middle cerebral artery M2: observer agreement 77%, kappa 0.48; internal carotid artery: observer agreement 92%, kappa 0.84; T occlusion: observer agreement 90.0%, kappa 0.33; posterior cerebral artery segments P1 and P2: observer agreement 98%, kappa 0.97; basilar artery: observer agreement 96%, kappa 0.92; and vertebral artery segment V4: observer agreement 88%, kappa 0.48. Conclusion: Interrater agreement of CTA evaluation of occlusion between the neurologists and the neuroradiologist was very strong. The ability of the trained neurologists to read an intracranial large vessel occlusion correctly may improve the door-to-needle times in acute stroke.
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