Issue Summary 2: July 2019

David A. Bluemke, MD, PhD, Editor of Radiology discusses four research articles from the July 2019 issue of Radiology. ARTICLES DISCUSSED –Summary of Using Artificial Intelligence to Revise ACR TI-RADS Risk Stratification of Thyroid Nodules: Diagnostic Accuracy and Utility. Radiology 2019;292:112–119. Summary of CT-guided Lung Biopsy: Effect of Biopsy-side Down Position on Pneumothorax and Chest Tube Placement. Radiology 2019;292:190–196. Summary of Iodine Maps from Subtraction CT or Dual-Energy CT to Detect Pulmonary Emboli with CT Angiography: A Multiple-Observer Study. Radiology 2019;292:197–205. Summary of Brain Oxygen Extraction by Using MRI in Older Individuals: Relationship to Apolipoprotein E Genotype and Amyloid Burden. Radiology 2019;292:140–148.