Diagnostic work-up and risk stratification in patients with bladder cancer before and after treatment must be refined to optimize management and improve outcomes. MRI has been suggested as a non-invasive technique for bladder cancer staging and assessment of response to systemic therapy. The Vesical Imaging-Reporting And Data System (VI-RADS) was developed to standardize bladder MRI image acquisition, interpretation and reporting and enables accurate prediction of muscle-wall invasion of bladder cancer. MRI is available in many centres but is not yet recommended as a first-line test for bladder cancer owing to a lack of high-quality evidence. Consensus-based evidence on the use of MRI-VI-RADS for bladder cancer care is needed to serve as a benchmark for formulating guidelines and research agendas until further evidence from randomized trials becomes available.

必须完善膀胱癌患者治疗前后的诊断检查和风险分层，以优化管理并改善结果。MRI 已被建议作为膀胱癌分期和评估全身治疗反应的非侵入性技术。膀胱成像报告和数据系统 (VI-RADS) 的开发是为了标准化膀胱 MRI 图像采集、解释和报告，并能够准确预测膀胱癌的肌壁浸润。许多中心都提供 MRI，但由于缺乏高质量证据，尚未推荐作为膀胱癌的一线检查。在获得随机试验的进一步证据之前，需要使用 MRI-VI-RADS 治疗膀胱癌的基于共识的证据作为制定指南和研究议程的基准。