Can a new CT scan spot tiny gut lesions that older scans miss?

This trial compares two types of CT scans—photon-counting CT (PCCT) and dual-energy CT (DECT)—to see which one is better at finding small gastrointestinal lesions (like tiny growths or thickening in the gut lining). About 1,700 adults who are having a contrast-enhanced abdominal CT and have at least one suspected or confirmed small lesion will be included. The study will check how often each scan detects these lesions, using endoscopy with biopsy as the gold standard, and also look at image quality and how well different doctors agree on what they see.