Dual-Energy, Spectral and Photon Counting Computed Tomography for Evaluation of the Gastrointestinal Tract

Avinash K Nehra, Bari Dane, Benjamin M Yeh, Joel G Fletcher, Shuai Leng, Achille Mileto

Radiol Clin North Am . 2023 Nov;61(6):1031-1049. doi: 10.1016/j.rcl.2023.06.002. Epub 2023 Jul 7.

Abstract

The use of dual-energy computed tomography (CT) allows for reconstruction of energy- and material-specific image series. The combination of low-energy monochromatic images, iodine maps, and virtual unenhanced images can improve lesion detection and disease characterization in the gastrointestinal tract in comparison with single-energy CT.