Fig. 5. Potential pitfalls and image artifacts. (A, B) Axial arterial phase computed tomography (CT) image show high-density material within the ascending colon. Ingested material or fecaliths can be mistaken for hemorrhage without unenhanced CT image (arrows). (C, D) Axial unenhanced and arterial phase CT image show cone-beam artifact, a finding that mimics extravasation of contrast material (arrow).

Gastrointestinal Intervention 2018;7:106~111 https://doi.org/10.18528/gii180027

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