David A. Bluemke, MD, PhD, Editor of Radiology discusses four research articles from the December 2019 issue of Radiology. ARTICLES DISCUSSED – Summary of Deep Learning for Chest Radiograph Diagnosis in the Emergency Department. Radiology 2019; 293:573–580.; Summary of Evaluation of 3.0-T MRI Brain Signal after Exposure to Gadoterate Meglumine in Women with High Breast Cancer Risk and Screening Breast MRI. Radiology 2019; 293:523–530.; Summary of Relationship between Lower Dose and Injection Speed of Iodinated Contrast Material for CT and Acute Hypersensitivity Reactions: An Observational Study. Radiology 2019; 293:565–572.; Summary of Multicenter Safety and Practice for Off-Label Diagnostic Use of Ferumoxytol in MRI. Radiology 2019; 293:554–564.