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

Figure 7 The representative dual energy computed tomography image of a 75-year-old woman with irreversible transmural intestinal necrosis. A: Volume rendering technique image; B: Hematoxylin and eosin staining images; C and D: Transverse and coronal images of the portal vein phase at 120 kVp; E: Portal vein phase at 50 keV image; F: Iodine density. Dual energy computed tomography examination reveals filling defect in superior mesenteric artery (area I+ II + III + IV) (thick arrow in A, C, and D), decreased and absent diffuse intestinal wall enhancement (arrowhead in E and F), normal intestinal duct (thin arrow in E and F), intestinal dilatation (star in D). Computed tomography 50 keV normal/lesion = 2.13, iodine concentration normal/lesion = 6.77.