Luca Saba1, Silvia Ajossa2, Giuseppe Ledda1, Antonella Balestrieri1, Federica Schirru1, Carlo Nicola De Cecco3, Jasjit S Suri4, Gian Benedetto Melis2, Francesco Lavra1, Stefano Guerriero2. 1. 1 Department of Radiology, Azienda Ospedaliero Universitaria (A.O.U.) , Cagliari , Italy. 2. 2 Department of Gynecology, Azienda Ospedaliero Universitaria (A.O.U.) , Cagliari , Italy. 3. 3 Division of Cardiovascular Imaging, Department of Radiology and Radiological Science, Medical University of South Carolina , Charleston , United States. 4. 4 Gynecological Diagnostic Division, Global Biomedical Technologies, Inc. , Roseville , United States.
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.
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.
Authors: Rosario Francesco Grasso; Vincenza Di Giacomo; Pietro Sedati; Ornella Sizzi; Giuseppe Florio; Eliodoro Faiella; Alfonso Rossetti; Riccardo Del Vescovo; Bruno Beomonte Zobel Journal: Abdom Imaging Date: 2010-12
Authors: Patrick M Bossuyt; Johannes B Reitsma; David E Bruns; Constantine A Gatsonis; Paul P Glasziou; Les M Irwig; Jeroen G Lijmer; David Moher; Drummond Rennie; Henrica C W De Vet Journal: AJR Am J Roentgenol Date: 2003-07 Impact factor: 3.959
Authors: Luciana P Chamié; Roberto Blasbalg; Manoel O C Gonçalves; Filomena M Carvalho; Maurício S Abrão; Ilka S de Oliveira Journal: Int J Gynaecol Obstet Date: 2009-05-24 Impact factor: 3.561