Fig. 5.

67-year-old man suffering from acute abdomen and left-sided abdominal pain. Transversal conventional late arterial (LA) phase (A) and portal venous (PV) phase. (B) CT series show slightly decreased enhancement of a small bowel loop in the left abdomen in a surgically proven case, particularly in the LA phase. At the visual analysis, LA phase iodine maps (C) were significantly better rated regarding bowel ischemia conspicuity assessment, contrast and image noise compared to PV phase iodine maps (D) (all categories, P < .001). While LA phase iodine maps show a distinct visual difference between ischemic and non-ischemic bowel, there is only a slight visual difference on PV phase iodine map, which makes the diagnosis challenging