Does the clinical information play a role in the magnetic resonance diagnostic confidence analysis of ovarian and deep endometriosis?

Luca Saba, Silvia Ajossa, S. Ajossa, Giuseppe Ledda, Antonella Balestrieri, Federica Schirru, Carlo Nicola De Cecco, Carlo N. De Cecco, Jasjit S Suri, Gian Benedetto Melis, Francesco Lavra, S. Guerriero, Stefano Guerriero
The British journal of radiology · 2019 · vol. 92(1096) , pp. 20180548 · doi:10.1259/bjr.20180548 · PMID:30730754 · W2914128378
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Abstract

OBJECTIVE:: Some recent studies have explored how the experience in the observers change their performance in the endometriosis detection using MRI but the effects of the clinical information remains uncertain. The purpose of this study was to assess the effect of the clinical information in the diagnostic confidence in the MRI diagnosis of endometriosis. METHODS AND MATERIALS:: Institutional Review Board was obtained. This study is compliant to STARD method. 80 patients (mean age 32 years; range 19 - 46 years) who had undergone MRI study and surgery for suspected endometriosis were retrospectively evaluated. MRI exams were performed with a 1.5 T scanner and the following five locations were assessed: ovary, anterior compartment, vaginal fornix, utero-sacral ligaments, and Rectum\Sigmoid\Pouch of Douglas. Data sets were evaluated twice on a 5-point scale by four radiologists with different level of expertise; the first time blinded to the clinical information and the second time, after 3 months together with the clinical chart. Statistical analysis included receiver operating characteristics curve analysis, the Cohen weighted test and sensitivity, specificity, positive predictive value, negative predictive value, accuracy, LR+ and LR-. RESULTS:: A total of 140 localization of endometriosis (47 endometriomas and 93 endometriotic nodules) were found. The pairwise comparison demonstrated that in all cases the presence of clinical information improved the Az value. The concordance analysis indicated a mixed pattern from modest agreement (weighted κ value 0.556 for anterior compartment) to excellent agreement values (weighted κ value 0.867 for ovarian endometriomas). CONCLUSION:: The results of our study suggest that clinical information is useful in diagnosing endometriosis in general anterior compartment, but not in other locations. Less experienced radiologists (resident) may benefit from it at utero-sacral ligaments or Rectum\Sigmoid\Pouch of Douglas. ADVANCES IN KNOWLEDGE:: In this era of sometimes indiscriminate use of diagnostic methods, it is important to emphasis the context for interpretation of diagnostic results. Our paper confirms that clinical information is useful in diagnosing endometriosis.

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Condition tags

mesh:D004715endometriosis

MeSH descriptors

Clinical Competence Endometriosis Magnetic Resonance Imaging Ovarian Diseases Adult Clinical Competence Douglas' Pouch Douglas' Pouch Endometriosis Female Humans Magnetic Resonance Imaging Middle Aged Ovarian Diseases Ovary Ovary Rectum Rectum Reproducibility of Results Retrospective Studies

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