Abdominal Ultrasound Normal Bowel Vs Small Bowel Obstruction Image Appearances | Dilated Bowel USG

Support the channel on Patreon: patreon.com/drsamsimaginglibrary Abdominal Ultrasound Normal Bowel Vs Small Bowel Obstruction Image Appearances | Dilated Bowel USG Symptoms: Abdominal discomfort/pain Abdominal distension Nausea/Vomiting: Vomitus often contains bile (greenish-yellow) and may become feculent (foul-smelling) in prolonged or distal obstructions. Severe Constipation: Inability to pass flatus or stool is a key symptom in complete obstruction. Partial obstructions may allow for occasional bowel movements. Normal Bowel: Thickness: Normal small bowel wall thickness is typically less than 3 mm when the bowel is distended. If the bowel is collapsed, the wall may appear thicker, but this is normal in a non-distended state. Diameter: Less than 3 cm Layers: Hyperechoic (bright): Interface of the superficial mucosa and the lumen. Hypoechoic (dark): Deep mucosa. Hyperechoic (bright): Submucosa. Hypoechoic (dark): Muscularis propria. Hyperechoic (bright): Serosa. Small Bowel Obstruction: Dilated fluid filled hypoechoic bowel (Diameter greater than 3 cm) To and fro appearance of intraluminal contents (Hyperperistalsis, early obstruction) Decreased/absent peristalsis (Late obstruction/ischemia) Prominent hyperechoic valvulae conniventes (intestinal folds) Hypoechoic free fluid outside bowel loops (indicates bowel ischemia/infarction) Tanga Sign: Triangular shape of hypoechoic free fluid between bowel loops. A transition from dilated bowel loops proximally to collapsed bowel distally is an important finding.