Woo Sungmin, Luk Lyndon, Muglia Valdair F, Briganti Alberto, Efstathiou Jason, Galgano Samuel J, Redd Bernadette, de Rooij Maarten, Takeuchi Mitsuru, Witjes J Alfred, Vargas H Alberto, Panebianco Valeria
Department of Radiology, New York University Langone Health, New York, NY, USA.
Department of Radiology, Columbia University Irving Medical Center, New York, NY, USA.
Eur Radiol. 2025 Aug 20. doi: 10.1007/s00330-025-11966-7.
High-quality bladder MRI is essential for reliable detection and characterization of bladder tumors. While the Vesical Imaging Reporting and Data System (VI-RADS) was developed to standardize acquisition, interpretation, and reporting of MRI for bladder cancer staging, no universal scoring system has been established for quality assessment. A systematic review showed that existing efforts for bladder MRI quality assessment have largely relied on study-specific, subjective Likert-type scales, with substantial variability, hindering reproducibility and comparability across studies and institutions. In this paper, we describe a novel bladder MRI scoring system that was developed by the multidisciplinary American College of Radiology VI-RADS Steering Committee, the VI-RADS Quality Score. It provides stratification of quality scores-inadequate, adequate, and optimal-based on signal-to-noise ratio, ability to clearly visualize relevant anatomic landmarks, and assessments of common imaging artifacts, which can guide clinical decision-making. It also emphasizes per-sequence scores in addition to an overall assessment to support targeted MRI protocol optimization. The VI-RADS Quality Score will need to be prospectively validated and will facilitate reproducibility across institutions, build trust in bladder MRI within multidisciplinary teams, and accelerate widespread adoption of bladder MRI for bladder cancer imaging. KEY POINTS: Question While high-quality bladder MRI is essential for evaluating bladder cancer, no universal scoring system is established for quality assessment. Findings A systematic review showed that studies on bladder MRI quality had significant variability. A structured scoring system was developed by the multidisciplinary VI-RADS steering committee. Clinical relevance High-quality bladder MRI is essential for reliable evaluation of bladder cancer. The VI-RADS Steering Committee developed a scoring system for bladder MRI quality assessment. This is expected to facilitate reproducibility and build trust in bladder MRI within multidisciplinary teams.
高质量的膀胱磁共振成像（MRI）对于可靠地检测和表征膀胱肿瘤至关重要。虽然膀胱影像报告和数据系统（VI-RADS）旨在规范用于膀胱癌分期的MRI采集、解读和报告，但尚未建立用于质量评估的通用评分系统。一项系统评价表明，现有的膀胱MRI质量评估工作很大程度上依赖于特定研究的主观李克特式量表，存在很大差异，阻碍了不同研究和机构之间的可重复性和可比性。在本文中，我们描述了一种由多学科的美国放射学会VI-RADS指导委员会开发的新型膀胱MRI评分系统，即VI-RADS质量评分。它根据信噪比、清晰可视化相关解剖标志的能力以及对常见成像伪影的评估，对质量评分进行分层，分为不足、 adequate和最佳，这可以指导临床决策。除了整体评估外，它还强调每个序列的评分，以支持有针对性的MRI方案优化。VI-RADS质量评分需要进行前瞻性验证，将促进不同机构之间的可重复性，在多学科团队中建立对膀胱MRI的信任，并加速膀胱MRI在膀胱癌成像中的广泛应用。要点：问题虽然高质量的膀胱MRI对于评估膀胱癌至关重要，但尚未建立用于质量评估的通用评分系统。发现一项系统评价表明，关于膀胱MRI质量的研究存在显著差异。多学科的VI-RADS指导委员会开发了一种结构化评分系统。临床意义高质量的膀胱MRI对于可靠评估膀胱癌至关重要。VI-RADS指导委员会开发了一种用于膀胱MRI质量评估的评分系统。这有望促进可重复性，并在多学科团队中建立对膀胱MRI的信任。
