Ability of ultrasound imaging to detect erosions in a bone phantom model

Annals of the Rheumatic Diseases
Juhani M KoskiSimo Saarakkala

Abstract

The authors examined the validity, interobserver reliability and interscanner variation in detecting bone erosions with ultrasonography using a custom-made phantom. 21 bovine bones were used. Artificial erosions were made into 15 bones and six bones were left as controls. In the processed bones the numbers of erosions, their depths and widths varied between 1-7, 1-4 and 1.5-5 mm, respectively. Each bone was coated with polyvinyl alcohol cryogel to mimic overlying soft tissue and to hide the erosions. Four musculoskeletal sonography experts scanned the 21 blind-coded phantoms using one of the three sets of ultrasound equipment. Finally, quality assurance measurements of the ultrasound equipment was carried out using two additional bone samples. The sonographers detected the erosions successfully with ultrasound. The mean correlation coefficient for a correct result in terms of the number of erosions detected was 0.88 (range 0.75-0.975). The overall Cohen's kappa coefficient for interobserver agreement was 0.683 in terms of discrimination between healthy bones and bones with erosions. The different sets of equipment showed that their overall performance was equal. The sonographers had good correlations with the number of erosions...Continue Reading

Citations

Dec 10, 2013·Best Practice & Research. Clinical Rheumatology·Fiona M McQueen
Aug 25, 2011·AJR. American Journal of Roentgenology·Emma L Rowbotham, Andrew J Grainger
Jul 6, 2012·Current Rheumatology Reports·Hilde Berner Hammer, Lene Terslev
Mar 13, 2014·Ultrasound in Medicine & Biology·Karen McCreeshJeremy Lewis
Sep 15, 2015·Radiology Research and Practice·Sadaf AdibiLeila Khojastepour
Jan 17, 2013·The Journal of Rheumatology·Esperanza NaredoUNKNOWN Ultrasound School of the Spanish Society of Rheumatology
Dec 3, 2015·The Journal of Rheumatology·Marcin SzkudlarekMaria Antonietta d'Agostino
Jan 24, 2021·Annals of the Rheumatic Diseases·Félicie CostantinoMaria-Antonietta D'Agostino

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