%0 Generic %A Vaz, André %A Zaparolli, Mauricio %D 2020 %T Diagnostic accuracy of retrospective application of the Vesical Imaging-Reporting and Data System: preliminary results %U https://scielo.figshare.com/articles/dataset/Diagnostic_accuracy_of_retrospective_application_of_the_Vesical_Imaging-Reporting_and_Data_System_preliminary_results/11804352 %R 10.6084/m9.figshare.11804352.v1 %2 https://scielo.figshare.com/ndownloader/files/21549789 %2 https://scielo.figshare.com/ndownloader/files/21549792 %2 https://scielo.figshare.com/ndownloader/files/21549795 %2 https://scielo.figshare.com/ndownloader/files/21549798 %2 https://scielo.figshare.com/ndownloader/files/21549801 %2 https://scielo.figshare.com/ndownloader/files/21549804 %2 https://scielo.figshare.com/ndownloader/files/21549810 %K Urinary bladder neoplasms %K Data systems %K Magnetic resonance imaging/methods %K Diffusion magnetic resonance imaging/methods %K Muscle, smooth/diagnostic imaging %K Neoplasm invasiveness %X

Abstract Objective: To evaluate the retrospective accuracy of the Vesical Imaging-Reporting and Data System (VI-RADS) in detecting muscle invasion in bladder cancer. Materials and Methods: We investigated patients who underwent pelvic magnetic resonance imaging and were submitted to transurethral resection of a bladder tumor between 2015 and 2018. Thirty cases were reviewed by radiologists blinded to the final clinical stage. The VI-RADS score was applied and compared with the histopathological findings in the surgical specimen. Results: Of the 30 patients with suspicious bladder lesions, 5 (16.6%) had benign histopathological findings, 17 (56.6%) had non-muscle-invasive bladder cancer, and 8 (26.6%) had muscle-invasive bladder cancer. The optimal criterion to detect muscle-invasive bladder cancer was a final VI-RADS score > 3, for which the sensitivity and specificity were 100% (95% CI: 56.0-100%) and 90.9% (95% CI: 69.3-98.4%), respectively. Conclusion: The VI-RADS appears to estimate correctly the degree of muscle invasion in suspicious bladder lesions. However, prospective studies evaluating larger samples are needed in order to validate the method.

%I SciELO journals