Assessment of Operator Reliability in Ultrasound of the Median and Ulnar Nerve Using Bland-Altman Analysis

Currently, there is no standardized method to evaluate operator reliability in nerve ultrasound. A short prospective protocol using Bland–Altman analysis was developed to assess the level of agreement between operators with different expertise levels. A control rater without experience in nerve ultr...

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Autores principales:	Jörg Philipps, Hannah Mork, Maria Katz, Mark Knaup, Kira Beyer, Kristina Spies, Johannes Corbach, Peter D. Schellinger
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	nerve ultrasound cross-sectional area reliability training effect Bland–Altman agreement analysis Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/fe10f4ea93174e3da7da32b46f1f5ab2
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spelling	oai:doaj.org-article:fe10f4ea93174e3da7da32b46f1f5ab22021-11-25T17:21:54ZAssessment of Operator Reliability in Ultrasound of the Median and Ulnar Nerve Using Bland-Altman Analysis10.3390/diagnostics111121342075-4418https://doaj.org/article/fe10f4ea93174e3da7da32b46f1f5ab22021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4418/11/11/2134https://doaj.org/toc/2075-4418Currently, there is no standardized method to evaluate operator reliability in nerve ultrasound. A short prospective protocol using Bland–Altman analysis was developed to assess the level of agreement between operators with different expertise levels. A control rater without experience in nerve ultrasound, three novices after two months of training, an experienced rater with two years of experience, and a reference rater performed blinded ultrasound examinations of the left median and ulnar nerve in 42 nerve sites in healthy volunteers. The precision of Bland–Altman agreement analysis was tested using the Preiss–Fisher procedure. Intraclass correlation coefficients (ICC), coefficients of variation, and Bland–Altman limits of agreement were calculated. The sample size calculation and Preiss–Fisher procedure showed a sufficient precision of Bland–Altman agreement analysis. Limits of agreement of all trained novices ranged from 2.0 to 2.9 mm<sup>2</sup> and were within the test’s maximum tolerated difference. Ninety-five percent confidence intervals of limits of agreement revealed a higher precision in the experienced rater’s measurements. Operator reliability in nerve ultrasound of the median and ulnar nerve arm nerves can be evaluated with a short prospective controlled protocol using Bland–Altman statistics, allowing a clear distinction between an untrained rater, trained novices after two months of training, and an experienced rater.Jörg PhilippsHannah MorkMaria KatzMark KnaupKira BeyerKristina SpiesJohannes CorbachPeter D. SchellingerMDPI AGarticlenerve ultrasoundcross-sectional areareliabilitytraining effectBland–Altman agreement analysisMedicine (General)R5-920ENDiagnostics, Vol 11, Iss 2134, p 2134 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	nerve ultrasound cross-sectional area reliability training effect Bland–Altman agreement analysis Medicine (General) R5-920
spellingShingle	nerve ultrasound cross-sectional area reliability training effect Bland–Altman agreement analysis Medicine (General) R5-920 Jörg Philipps Hannah Mork Maria Katz Mark Knaup Kira Beyer Kristina Spies Johannes Corbach Peter D. Schellinger Assessment of Operator Reliability in Ultrasound of the Median and Ulnar Nerve Using Bland-Altman Analysis
description	Currently, there is no standardized method to evaluate operator reliability in nerve ultrasound. A short prospective protocol using Bland–Altman analysis was developed to assess the level of agreement between operators with different expertise levels. A control rater without experience in nerve ultrasound, three novices after two months of training, an experienced rater with two years of experience, and a reference rater performed blinded ultrasound examinations of the left median and ulnar nerve in 42 nerve sites in healthy volunteers. The precision of Bland–Altman agreement analysis was tested using the Preiss–Fisher procedure. Intraclass correlation coefficients (ICC), coefficients of variation, and Bland–Altman limits of agreement were calculated. The sample size calculation and Preiss–Fisher procedure showed a sufficient precision of Bland–Altman agreement analysis. Limits of agreement of all trained novices ranged from 2.0 to 2.9 mm<sup>2</sup> and were within the test’s maximum tolerated difference. Ninety-five percent confidence intervals of limits of agreement revealed a higher precision in the experienced rater’s measurements. Operator reliability in nerve ultrasound of the median and ulnar nerve arm nerves can be evaluated with a short prospective controlled protocol using Bland–Altman statistics, allowing a clear distinction between an untrained rater, trained novices after two months of training, and an experienced rater.
format	article
author	Jörg Philipps Hannah Mork Maria Katz Mark Knaup Kira Beyer Kristina Spies Johannes Corbach Peter D. Schellinger
author_facet	Jörg Philipps Hannah Mork Maria Katz Mark Knaup Kira Beyer Kristina Spies Johannes Corbach Peter D. Schellinger
author_sort	Jörg Philipps
title	Assessment of Operator Reliability in Ultrasound of the Median and Ulnar Nerve Using Bland-Altman Analysis
title_short	Assessment of Operator Reliability in Ultrasound of the Median and Ulnar Nerve Using Bland-Altman Analysis
title_full	Assessment of Operator Reliability in Ultrasound of the Median and Ulnar Nerve Using Bland-Altman Analysis
title_fullStr	Assessment of Operator Reliability in Ultrasound of the Median and Ulnar Nerve Using Bland-Altman Analysis
title_full_unstemmed	Assessment of Operator Reliability in Ultrasound of the Median and Ulnar Nerve Using Bland-Altman Analysis
title_sort	assessment of operator reliability in ultrasound of the median and ulnar nerve using bland-altman analysis
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/fe10f4ea93174e3da7da32b46f1f5ab2
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Assessment of Operator Reliability in Ultrasound of the Median and Ulnar Nerve Using Bland-Altman Analysis

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