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(a) 46-year-old male patient with intra-abdominal hematoma (arrow) adjacent to small bowel loops (arrowhead) after gastric tube surgery. (b) Measurement of iodine maps shows a difference in VNC and iodine values (dual-energy CT) between hematoma and intestinal loops, but no difference in DE-LB (single-energy CT). This case was incorrectly rated as negative in the DE-LB procedure by all 3 readers. After CT, the patient underwent laparoscopy with hematoma evacuation.
