Multiparametric MRI Evaluation of Vesical Imaging‑Reporting and Data System (VI‑RADS) for bladder cancer after Neoadjuvant Chemotherapy

Local tumor restaging after neoadjuvant chemotherapy (NAC) treatment is urgently needed. Therefore, the aim of this study was to investigate whether VI-RADS could accurately detect muscle invasion in BC patients after NAC treatment. VI-RADS scores of bladder cancer after NAC were independently assessed by two radiologists. With an optimal cut-off value ≥4, the AUC values for the VI-RADS scores for predicting muscle invasion were 0.91, and 0.94 for reader 1 and reader 2 respectively. VI-RADS could potentially be a restaging tool for patients who underwent NAC.