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. 2013 Feb;34(2):E13-8.
doi: 10.3174/ajnr.A2796. Epub 2011 Nov 11.

Carotid artery wall thickness measured using CT: inter- and intraobserver agreement analysis

L Saba  1 , R Sanfilippo, R Montisci, J S Suri, G Mallarini
Affiliations

Carotid artery wall thickness measured using CT: inter- and intraobserver agreement analysis

L Saba et al. AJNR Am J Neuroradiol. 2013 Feb.

Abstract

The purpose of this work was to compare inter- and intraobserver agreement in the analysis of CAWT by using MDCTA. The CAWT in 35 patients was quantified by 4 observers. Bland-Altman statistics were used to measure the agreement between observers. The results of our study demonstrated that the CAWT measured by using MDCTA shows a good reproducibility between observers by considering inter- and intraobserver agreement.

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Figures

Fig 1.
Fig 1.
MDCTA axial image of a 63-year-old woman. The white arrow indicates the CAWT of the left common carotid artery. Panel A is a 100% zoom of the CAWT.
Fig 2.
Fig 2.
Bland-Altman plot for intraobserver agreement.
Fig 3.
Fig 3.
Bland-Altman plot for interobserver agreement in the first measurement.
Fig 4.
Fig 4.
Bland-Altman plot for interobserver agreement in the second measurement.
Fig 5.
Fig 5.
Mountain plot analysis for the intraobserver agreement.
See this image and copyright information in PMC

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