Dual-Energy CT

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Dual-energy CT (DECT) scan mode was introduced in 2006. It uses two different X-ray energy spectra simultaneously to obtain additional information on tissue composition [1]. The basic principle of DECT is the acquisition of two datasets with different energy spectra, from the same anatomic location [2]. These spectra are generated with different tube potentials, by switching the voltage of one X-ray tube or by running two tubes at different voltages at the same time. DECT information can then be gained from two absorption measurements [3] in contrast to only one in a conventional CT.
Original languageEnglish
Title of host publicationMultidisciplinary Treatment of Colorectal Cancer
EditorsGunnar Baatrup
Publication date2021
ISBN (Print)978-3-030-58845-8
ISBN (Electronic)978-3-030-58846-5
Publication statusPublished - 2021


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