Simple descriptors and simple rules of the International Ovarian Tumor Analysis (IOTA) Group: a prospective study of combined use for the description of adnexal masses

Almudena Peces Rama, María Carmen Llanos Llanos, María Luisa Sánchez Ferrer, Juan Luis Alcázar Zambrano, Antonio Martínez Mendoza, Aníbal Nieto Díaz
European journal of obstetrics, gynecology, and reproductive biology · 2015 · doi:10.1016/j.ejogrb.2015.07.010 · PMID:26461961
other OA: closed public-domain-us
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⚙ AI-generated summary by claude@2026-06, 2026-06-13 ⓘ

The IOTA group's three-step diagnostic strategy for adnexal masses showed diagnostic performance comparable to expert assessment for nonexpert sonographers.

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Abstract

OBJECTIVE: External validation of the IOTA group's three-step diagnostic model (Strategy 1) and comparison with assessment by an expert sonographer (Strategy 2). STUDY DESIGN: Prospective study in patients with persistent adnexal masses, in which an inexperienced sonographer performed transvaginal ultrasound applying simple descriptors (SD) and rules (SR) for classifying as benign or malignant. Any non-classifiable mass was then submitted to an expert examiner for subjective assessment (SA). RESULTS: Eighty-one patients (mean age, 43; 27.2% postmenopausal) were included in this prospective study. Surgery was performed for 30 (8 malignant and 22 benign) masses; 51 masses were considered as benign and managed expectantly (they were assumed to be benign for statistical purposes). Diagnostic performance for Strategy 1 (SD+SR+SA) was sensitivity (SN): 87.5% (7/8, 95% CI, 47.3-99.7%) and specificity (SP): 100% (73/73, 95% CI, 95.1-100%). For Strategy 2 (SA only) it was SN 87.5% (7/8, 95% CI, 47.3-99.7%), SP 98.6% (72/73, 95% CI, 92.6-100%). CONCLUSIONS: The three-step diagnostic strategy designed by the IOTA group for adnexal masses has a diagnostic performance comparable to that of subjective expert assessment and could be used as a triage method by nonexpert sonographers.

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Condition tags

endometriosis

MeSH descriptors

Abscess Adenocarcinoma, Clear Cell Carcinoma, Endometrioid Endometriosis Neoplasms, Cystic, Mucinous, and Serous Ovarian Cysts Ovarian Neoplasms Teratoma Abscess Abscess Abscess Adenocarcinoma, Clear Cell Adenocarcinoma, Clear Cell Adenocarcinoma, Clear Cell Adolescent Adult Aged Carcinoma, Endometrioid Carcinoma, Endometrioid Carcinoma, Endometrioid

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