Lower gastrointestinal bleeding: Role of 64-row computed tomographic angiography in diagnosis and therapeutic planning

Figure 1 Images from a 36-year-old woman with a history of abdominal trauma (hemoglobin, 7. 1 g/dL; hematocrit, 24.5%). A: 64-row computed tomography angiogram in arterial phase showed a focus of extravasation in the ileum (arrow); B: Active bleeding site was found on conventional angiography; C, D: Post-embolization angiography confirmed complete occlusion of the active gastrointestinal bleeding with coils (arrow).

Figure 2 Images from a 64-year-old man with acute ileal bleeding (hemoglobin, 7. 4 g/dL; hematocrit, 23.7%). A, B: Axial and coronal computed tomography angiograms in arterial phase showed a focus of active extravasation (arrow) at the distal ileum; C: Superior mesenteric angiography prior to surgical resection confirmed the active extravasation (arrow); D: Emergency surgery was required 2 d after bleeding, and the resected specimen confirmed a diverticulum (arrow) at the distal ileum.