Universität zu Köln

Matz, Oliver, Nikoubashman, Omid, Rajkumar, Parajuli, Keuler, Andreas, Wiesmann, Martin, Schulz, Joerg B. and Reich, Arno (2017). Grading of proximal internal carotid artery (ICA) stenosis by Doppler/duplex ultrasound (DUS) and computed tomographic angiography (CTA): correlation and interrater reliability in real-life practice. Acta Neurol. Belg., 117 (1). S. 183 - 189. HEIDELBERG: SPRINGER HEIDELBERG. ISSN 2240-2993

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Abstract

Doppler/duplex ultrasound (DUS) and computed tomographic angiography (CTA) are frequently applied methods to assess the degree of proximal internal carotid artery (ICA) stenoses in patients with acute ischemic stroke. This study evaluated the agreement and interrater reliability (IR) of both methods using a revised DUS grading system as well as different criteria (ECST/NASCET) under real-life conditions. CTA and DUS data of 281 proximal ICA stenoses [143 patients; 65.7 % male; age (mean (years) +/- SD, range) 72.2 +/- 11.1, 40-99] were retrospectively analyzed. For both methods, two independent raters estimated the degree of stenosis according to NASCET and ECST criteria. DUS raters applied revised German DUS criteria. For agreement and IR assessment, the linear weighted Kappa statistic was used. Correlation between DUS and CTA was substantial irrespective of the applied classification [weighted Kappa: 0.77 (NASCET)/0.79 (ECST)]. IR for DUS was almost perfect (weighted Kappa: 0.94) and better than for CTA [weighted Kappa: 0.78 (NASCET)/0.78 (ECST)]. In a real-life setting, CTA and DUS assessments of the degree of proximal ICA stenoses agreed substantially irrespective of the criteria applied (ECST/NASCET). For DUS, IR was better than for CTA.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Matz, Oliver UNSPECIFIED UNSPECIFIED UNSPECIFIED Nikoubashman, Omid UNSPECIFIED UNSPECIFIED UNSPECIFIED Rajkumar, Parajuli UNSPECIFIED UNSPECIFIED UNSPECIFIED Keuler, Andreas UNSPECIFIED UNSPECIFIED UNSPECIFIED Wiesmann, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED Schulz, Joerg B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Reich, Arno UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-237576
DOI:	10.1007/s13760-016-0676-4
Journal or Publication Title:	Acta Neurol. Belg.
Volume:	117
Number:	1
Page Range:	S. 183 - 189
Date:	2017
Publisher:	SPRINGER HEIDELBERG
Place of Publication:	HEIDELBERG
ISSN:	2240-2993
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language POPULATION; ATHEROSCLEROSIS; CRITERIA; ENDARTERECTOMY; TRIAL Multiple languages Clinical Neurology; Neurosciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/23757