Interobserver agreement for thyroid elastography. Value of the quality factor

Cepero Calvete, Angela; Rodriguez, José Manuel; Berná Mestre, Juan de Dios; Rios, Antonio; Abellán Rivero, Delores; Reus Pintado, Manuel

Publication:
Interobserver agreement for thyroid elastography. Value of the quality factor

dc.contributor.author	Cepero Calvete, Angela
dc.contributor.author	Rodriguez, José Manuel
dc.contributor.author	Berná Mestre, Juan de Dios
dc.contributor.author	Rios, Antonio
dc.contributor.author	Abellán Rivero, Delores
dc.contributor.author	Reus Pintado, Manuel
dc.contributor.department	Dermatología, Estomatología, Radiología y Medicina Física
dc.date.accessioned	2025-01-17T09:37:15Z
dc.date.available	2025-01-17T09:37:15Z
dc.date.issued	2013-03-01
dc.description	© 2013 by the American Institute of Ultrasound in Medicine. This document is the Published Manuscript version of a Published Work that appeared in final form in Journal of Ultrasound in Medicine. To access the final edited and published work see https://doi.org/10.7863/jum.2013.32.3.495
dc.description.abstract	Objectives—The purpose of our study was to investigate interobserver agreement for thyroid ultrasound elastography and to analyze the reproducibility of real-time free hand elastography in thyroid nodules. Methods—A prospective nonrandomized double-blind study was conducted between September 2008 and June 2010. Real-time elastography of 89 thyroid nodules was performed by two radiologists, with the first radiologist evaluating each thyroid nodule 5 minutes before the second. The elastograms were obtained with the patients holding their breath and considered valid when the quality factor was 50 or higher. The region of interest was positioned to include the nodule and 0.5 cm of surrounding normal thyroid parenchyma but to exclude the carotids and esophageal-tracheal structures. The elastograms were classified on a scale of 5 different patterns. Results—Observers 1 and 2 coincided in 79 elastographic patterns and disagreed on 10 nodules (11.2%). The results between the radiologists had a statistically significant agreement (P < .005), with a κ value of 0.838. Conclusions—The introduction of a quality factor in elastographic software and the selection of elastograms with a quality factor of 50 or higher confer almost perfect interobserver agreement for thyroid nodule elastography and make elastography a reproducible technique that could be used in daily clinical practice.	es
dc.format	application/pdf	es
dc.format.extent	10	es
dc.identifier.citation	Journal of Ultrasound in Medicine, 2013, Vol. 32, Issue 3, pp. 381-550
dc.identifier.doi	https://doi.org/10.7863/jum.2013.32.3.495
dc.identifier.issn	Print: 0278-4297
dc.identifier.issn	Electronic: 1550-9613
dc.identifier.uri	http://hdl.handle.net/10201/148649
dc.language	eng	es
dc.publisher	Wiley	es
dc.relation	Sin financiación externa a la Universidad	es
dc.relation.publisherversion	https://onlinelibrary.wiley.com/doi/10.7863/jum.2013.32.3.495
dc.rights.accessRights	info:eu-repo/semantics/restrictedAccess
dc.subject	Thyroid	es
dc.subject	Thyroid cancer	es
dc.subject	Ultrasound (US)	es
dc.subject.other	CDU::6 - Ciencias aplicadas::61 - Medicina::615 - Farmacología. Terapéutica. Toxicología. Radiología	es
dc.title	Interobserver agreement for thyroid elastography. Value of the quality factor	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es