Imaging continues to evolve with innovations that improve resolution, functional assessment and minimally invasive interventions. Volume 3 surveys cutting-edge technologies—advanced MRI techniques, hybrid PET/MR, high-resolution CT, AI-assisted reconstruction and quantitative imaging biomarkers—and their emerging clinical roles. Chapters assess evidence for novel applications in oncology, cardiology, neurology and inflammation, emphasizing validation, reproducibility and clinical integration. Practical sections discuss workflow, data management, and regulatory considerations for adopting new imaging tools. The book also addresses training needs and multidisciplinary collaboration necessary for safe implementation. It is intended for advanced radiology practitioners, clinical researchers and imaging directors planning to incorporate next-generation imaging into practice.