David A. Bluemke, MD, PhD, Editor of Radiology discusses four research articles from the April 2019 issue of Radiology. ARTICLES DISCUSSED – Summary of Real-time Volumetric Assessment of the Human Carotid Artery: Handheld Multispectral Optoacoustic Tomography. Radiology 2019; 291:45-50. Summary of Digital Breast Tomosynthesis: Radiologist Learning Curve. Radiology 2019; 291:34-42. Summary of Improving Patient Experience in Radiology: Impact of a Multifaceted Intervention on National Ranking. Radiology 2019; 291:102-109. Summary of First-Line Diagnostic Evaluation with MRI of Children Suspected of Having Acute Appendicitis. Radiology 2019; 291:170-177.