VI-RADS score system - A primer for urologists

ABSTRACT Bladder cancer (BCa) is one of the most common cancers worldwide and is also considered to be one of the most relapsing and aggressive neoplasms. About 30% of patients will present with muscle invasive disease, which is associated with a higher risk for metastatic disease. The aim of this article is to review the state of art imaging in Radiology, while providing a complete guide to urologists, with case examples, for the rationale of the development of the Vesical Imaging Reporting and Data System (VI-RADS), a scoring system emphasizing a standardized approach to multiparametric Magnetic Resonance Imaging (mpMRI) acquisition, interpretation, and reporting for BCa. Also, we examine relevant external validation studies and the consolidated literature of mpMRI for bladder cancer. In addition, this article discusses some of the potential clinical implications of this scoring system for disease management and follow-up.

摘要：膀胱癌（Bladder cancer, BCa）是全球最常见的癌症之一，同时也是复发率最高、侵袭性最强的肿瘤之一。约30%的患者会出现肌层浸润性病变，此类病变与更高的转移性疾病风险相关。本文旨在综述放射学领域的影像技术最新研究进展，并结合病例实例，为泌尿科医师提供一份关于膀胱影像报告与数据系统（Vesical Imaging Reporting and Data System, VI-RADS）开发依据的完整指南。该系统是一套评分系统，强调针对膀胱癌采用标准化流程完成多参数磁共振成像（multiparametric Magnetic Resonance Imaging, mpMRI）的采集、解读与报告。此外，本文还梳理了相关的外部验证研究以及膀胱癌多参数磁共振成像的汇总文献，并探讨了该评分系统在疾病管理与随访中的潜在临床应用价值。