Résumé
OBJECTIVE: To evaluate the interobserver variability and performance in the interpretation of ultrasonographic (US) findings of thyroid nodules. MATERIALS AND METHODS: 72 malignant nodules and 61 benign nodules were enrolled as part of this study. Five faculty radiologists and four residents independently performed a retrospective analysis of the US images. The observers received one training session after the first interpretation and then performed a secondary interpretation. Agreement was analyzed by Cohen's kappa statistic. Degree of performance was analyzed using receiver operating characteristic (ROC) curves. RESULTS: Agreement between the faculties was fair-to-good for all criteria; however, between residents, agreement was poor-to-fair. The area under the ROC curves was 0.72, 0.62, and 0.60 for the faculties, senior residents, and junior residents, respectively. There was a significant difference in performance between the faculties and the residents (p < 0.05). There was a significant increase in the agreement for some criteria in the faculties and the senior residents after the training session, but no significant increase in the junior residents. CONCLUSION: Independent reporting of thyroid US performed by residents is undesirable. A continuous and specialized resident training is essential to enhance the degree of agreement and performance.
Sujets)
Adulte , Sujet âgé , Femelle , Humains , Mâle , Adulte d'âge moyen , Compétence clinique/statistiques et données numériques , Diagnostic différentiel , Corps enseignant et administratif en médecine/statistiques et données numériques , Internat et résidence/statistiques et données numériques , Biais de l'observateur , Courbe ROC , Radiologie/enseignement et éducation , Études rétrospectives , Sensibilité et spécificité , Glande thyroide/imagerie diagnostique , Tumeurs de la thyroïde/imagerie diagnostiqueRésumé
Few reports exists citing a case of a retropharyngeal bronchogenic cysts. In this study, we report a bronchogenic cyst with a cystic appearance observed in the retropharyngeal space.
Sujets)
Kyste bronchogénique , Maladies du pharynx , TomodensitométrieRésumé
Cerebral white matter tracts are altered by a brain tumor. We report a case of gliomatosis cerebri where the diffusion tensor fiber tract passes through the tumor.