Interobserver Agreement in the Study of 2D and 3D Sonographic Criteria for Adenomyosis

J. M. Puente, Juan Luis Alcázar, Pilar Martínez-Ten, Carmina Bermejo, María T. Troncoso, Juan A. García-Velasco
In: Journal of Endometriosis and Pelvic Pain Disorders · 2017 · vol. 9(3) , pp. 211–215 · doi:10.5301/jeppd.5000295 · W2725379626
article OA: closed CC0 ⤵ 6 in-corpus citations
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⚙ AI-generated summary by claude@2026-06, 2026-06-14 ⓘ

This study assessed interobserver agreement for 2D and 3D ultrasound criteria in diagnosing adenomyosis, finding high agreement for diagnosis and good agreement for specific features like myometrial cysts and junctional zone evaluation.

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Abstract

Objective To study the degree of interobserver agreement for already known two-dimensional (2D) and three-dimensional (3D) sonography criteria of adenomyosis. Methods Fifty cases (25 adenomyosis cases, 25 non-adenomyosis cases) were studied by four expert observers and a less-experienced researcher. Each sonographic adenomyosis criterion was separately studied. Interobserver agreement was analysed by the kappa index with 95% confidence interval (CI). Results The degree of agreement about diagnosing adenomyosis was high or very high in all pair-wise comparisons (kappa values of 0.58–0–92). The agreement on identifying intra-myometrial cysts (kappa values of 0.46–0.79) and evaluating the junctional zone (JZ) by 3D-transvaginal ultrasound (3D-TVS) (kappa index of 0.46–0.88) was good. The agreements reached when evaluating the other criteria varied, but good agreement was generally reached. Conclusions Both the 2D-TVS and 3D-TVS criteria employed in diagnosing adenomyosis were reproducible parameters in adenomyosis diagnostics. The results were reproducible, even by a less experienced observer.

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adenomyosis

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