A patient with suspected small bowel obstruction requires accurate and fast imaging to confirm diagnosis, identify the site and cause of obstruction, and assess for complications such as ischemia or perforation. CT abdomen with oral contrast is the preferred modality because it provides detailed cross-sectional images, helping to differentiate between partial and complete obstruction and detect any associated complications. Oral contrast enhances visualization of the bowel lumen, improving diagnostic accuracy. Compared to abdominal X-ray or ultrasound, CT offers superior sensitivity and specificity, guiding timely surgical intervention if needed. This precise information is critical in surgical decision-making to reduce morbidity and optimize outcomes.
Reference: Sabiston Textbook of Surgery, Townsend CM, 21st Edition.