Researchers found that people with severe ulcerative colitis who achieved response with steroid treatment had reduced gastrointestinal ultrasound-derived initial colonic bowel wall thickness measurements, compared with those who needed salvage therapy, and that ultrasound-derived measures, but not endoscopic appearances and scores, identified those who responded to steroids. The approach, described in Ultrasound in Medicine & Biology, "may be an important tool in optimizing and personalizing management of patients with severe ulcerative colitis," researchers wrote.