Diagnostic value of dual-energy computed tomography in irreversible transmural intestinal necrosis in patients with acute occlusive mesenteric ischemia

Figure 8 The representative dual energy computed tomography image of a 71-year-old woman without irreversible transmural intestinal necrosis. A: Volume rendering technique image; B: Portal vein phase at 50 keV image; C: Iodine density. Dual energy computed tomography examination shows a filling defect in the superior mesenteric artery (area IV, thick arrow in A), diffuse thickening, and decreased enhancement of the ileal wall (arrowhead in B and C). Adjacent mesangial swelling, normal bowel (thin arrow in B and C), and no intestinal dilatation or other computed tomography signs of substantial organ infarction. Computed tomography 50 keV normal/lesion = 1.66; iodine concentration normal/lesion = 1.89.