Interrater variability for CT angiography evaluation between
neurologists and neuroradiologist in acute stroke patients

J 2017

Interrater variability for CT angiography evaluation between neurologists and neuroradiologist in acute stroke patients

BAR, Michal, Jiří KRÁL, Tomas JONSZTA, Vaclav MARCIAN, Martin KULIHA et. al.

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

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30224 Radiology, nuclear medicine and medical imaging

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

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

Abstract

V originále

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.

Citovat

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.

@article{1411317,
   author = {Bar, Michal and Král, Jiří and Jonszta, Tomas and Marcian, Vaclav and Kuliha, Martin and Mikulík, Robert},
   article_location = {LONDON},
   article_number = {1071},
   doi = {http://dx.doi.org/10.1259/bjr.20160670},
   keywords = {CT angiography evaluation; acute stroke patient},
   language = {eng},
   issn = {0007-1285},
   journal = {BRITISH JOURNAL OF RADIOLOGY},
   title = {Interrater variability for CT angiography evaluation between neurologists and neuroradiologist in acute stroke patients},
   volume = {90},
   year = {2017}
}

TY  - JOUR
ID  - 1411317
AU  - Bar, Michal - Král, Jiří - Jonszta, Tomas - Marcian, Vaclav - Kuliha, Martin - Mikulík, Robert
PY  - 2017
TI  - Interrater variability for CT angiography evaluation between neurologists and neuroradiologist in acute stroke patients
JF  - BRITISH JOURNAL OF RADIOLOGY
VL  - 90
IS  - 1071
SP  - 1-7
EP  - 1-7
PB  - BRITISH INST RADIOLOGY
SN  - 00071285
KW  - CT angiography evaluation
KW  - acute stroke patient
N2  - 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.
ER  -

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. \textit{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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