Bowel Ultrasound Normal vs Crohn's Disease - Limberg Score, SUS-CD System and Other USG Findings

Learn to differentiate normal bowel anatomy from Crohn's disease using ultrasound imaging in this 14-minute educational video. Master the five-layer stratification pattern of the normal terminal ileum, including the echogenic mucosal/lumen interface, hypoechoic muscularis mucosa, echogenic submucosa, hypoechoic muscularis propria, and echogenic serosa. Understand key Crohn's disease ultrasound findings including bowel wall thickness greater than 3mm, loss of wall stratification in chronic disease, creeping fat appearance as hyperechoic mesenteric fat wrapping around bowel loops, mesenteric lymphadenopathy, and increased bowel wall vascularity indicating active inflammation. Apply the Limberg scoring system from Grade 0 (normal wall thickness less than 3mm with no Doppler signals) through Grade 4 (blood flow in both bowel wall and mesenteric fat) to assess disease severity. Implement the Simple Ultrasound Activity Score for Crohn's Disease (SUS-CD) system by evaluating bowel wall thickness (0-3 points) and color Doppler signals (0-2 points) across five bowel segments including terminal ileum, right colon, transverse colon, left colon, and rectum. Recognize complications such as fistulas appearing as hypoechoic tracts between structures, abscesses as hypoechoic collections with irregular walls, and strictures with prestenotic dilatation greater than 25-30mm diameter. Correlate ultrasound findings with laboratory markers including elevated inflammatory markers (CRP, ESR, WBC), anemia patterns, nutritional deficiencies, and fecal markers like calprotectin and lactoferrin for comprehensive Crohn's disease assessment.