Tsutomu Tamada, Mitsuru Takeuchi, Yoshimitsu Ohgiya
MRI has become indispensable in the diagnosis and management of urologic and nephrological diseases. Technological advances over the past 2 decades-including multiparametric imaging, quantitative MRI, standardized reporting systems, deep learning-based reconstruction, and artificial intelligence (AI)-have expanded the role of MRI beyond anatomical assessment to tissue characterization, treatment planning, image-guided intervention, and therapeutic monitoring. This special issue of Magnetic Resonance in Medical Sciences comprises 7 review articles and 2 original investigations that summarize recent advances in MRI of the kidney, prostate, bladder, and upper urinary tract. Together, these contributions highlight recent advances in MRI and illustrate its evolving role as an integrated imaging platform that combines quantitative imaging, imaging biomarkers, AI, and image-guided therapy. This Editorial highlights the 7 review articles included in this special issue and provides an overview of recent advances in MRI for urologic and nephrological diseases.