For the IUS Monthly July 2023 Webinar, Dr. Maia Kayal (Associate Professor of Medicine, Icahn School of Medicine at Mount Sinai) presents a case on the use of intestinal ultrasound to guide management of ulcerative colitis during pregnancy and Dr. Michael Dolinger (Assistant Professor of Pediatrics, Icahn School of Medicine at Mount Sinai) presents an update on the use of intestinal ultrasound to monitor treatment response in pediatric acute severe ulcerative colitis.