Jeffrey S. Klein, MD, Editor of RadioGraphics, discusses six articles from the May-June 2019 issue of RadioGraphics. ARTICLES DISCUSSED: A Radiologist’s Guide to the Performance and Interpretation of Obstetric Doppler US., RadioGraphics 2019; 39:893–910; Role of US LI-RADS in the LI-RADS Algorithm., RadioGraphics 2019; 39:690–708; Review of 18F-Fluciclovine PET for Detection of Recurrent Prostate Cancer., RadioGraphics 2019; 39:822–841; Photon-counting Detector CT: System Design and Clinical Applications of an Emerging Technology., RadioGraphics 2019; 39:729–743. Radiography, CT, and MRI of Hip and Lower Limb Disorders in Children and Adolescents., RadioGraphics 2019; 39:779–794; Pattern Recognition: A Mechanism-based Approach to Injury Detection after Motor Vehicle Collisions., RadioGraphics 2019; 39:857–876;