Evaluating the concordance between Vesical imaging Reporting and Data System scores and bladder tumor histopathology

This study aims to assess the local staging of bladder cancer tumors in patients utilizing preoperative multiparametric MRI (mpMRI) and to demonstrate the clinical efficacy of this method through a comparative analysis with corresponding histopathological findings. Between November 2020 and April 2022, 63 patients with a planned cystoscopy and a preliminary or previous diagnosis of bladder cancer were included. All participants underwent mpMRI, and Vesical Imaging Reporting and Data System (VI-RADS) criteria were applied to assess the recorded images. Subsequently, obtained biopsies were histopathologically examined and compared with radiological findings. Of the 63 participants, 60 (95.2%) were male, and 3 (4.8%) were female. Categorizing tumors with a VI-RADS score of >3 as muscle invasive, 84% were radiologically classified as having an invasive bladder tumor. However, histopathological results indicated invasive bladder tumors in 52.4% of cases. Sensitivity of the VI-RADS scoring system was 100%; specificity was 33%; negative predictive value was 100%; and positive predictive value was 62.3%. The scoring system obtained through MpMRI, VI-RADS, proves to be a successful method, particularly in determining the absence of muscle invasion in bladder cancer. Its efficacy in detecting muscle invasion in bladder tumors could be further enhanced with additional studies, suggesting potential for increased diagnostic efficiency through ongoing research. VI-RADS could enhance the selection of patients eligible for accurate diagnosis and treatment.