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. 2017 Mar 29;5(5):19. doi: 10.1007/s40134-017-0213-0

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© The Author(s) 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 10 — Different reconstructions from one dataset. DECT of a 77-year-old male showed a right-sided piriform sinus SCC (a, mixed), suggestive of thyroid invasion. The tumor delineation is better depicted at the lower-energy images of the VMI (b: 40 keV; c: 70 keV; and d: 100 keV), and on the iodine fusion images (e, f). Bone marrow edema (BME) image (d), which demonstrates edema at the thyroid cartilage. Visualization of direct tumor invasion is the easiest way to demonstrate cartilage invasion; this can be demonstrated made more easily by means of lower-energy images from VMI and iodine fusion images. Demonstration of edema of the thyroid in virtual non-calcium images can serve as an additional argument for invasion of the thyroid (arrow)