While this book was in press, several applicable publications and updated guidelines emerged, including an executive summary of a joint Eunice Kennedy Shriver National Institute of Child Health and Human Development, Society for Maternal-Fetal Medicine, American Institute of Ultrasound in Medicine, American College of Obstetricians and Gynecologists, American College of Radiology, Society for Pediatric Radiology, and Society of Radiologists in Ultrasound Fetal Imaging workshop. This document offered recommendations specific to fetal imaging. This summary outlined the indications for ultrasound and MRI in pregnancy, the recommended timing and intervals for fetal imaging, and the identification of research opportunities. Commentary regarding how these recommendations may differ slightly from content in the book is detailed on http://solution.lww.com.