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Experimental Examination of Radiation Doses Of Dual-and Single-Energy Computed Tomography in Chest And Upper Abdomen in a Phantom Study

  • The aim of this phantom study is to examine radiation doses of dual- and single-energy computed tomography (DECT and SECT) in the chest and upper abdomen for three different multi-slice CT scanners. A total of 34 CT protocols were examined with the phantom N1 LUNGMAN. Four different CT examination types of different anatomic regions were performed both in single- and dual-energy technique: chest, aorta, pulmonary arteries for suspected pulmonary embolism and liver. Radiation doses were examined for the CT dose index CTDIvol and dose-length product (DLP). Radiation doses of DECT were significantly higher than doses for SECT. In terms of CTDIvol, radiation doses were 1.1–3.2 times higher, and in terms of DLP, these were 1.1–3.8 times higher for DECT compared with SECT. The third-generation dual-source CT applied the lowest dose in 7 of 15 different examination types of different anatomic regions.

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Author:Denise Bos, Britta König, Sebastian Blex, Sebastian Zensen, Marcel Opitz, Sandra Maier, Michael Forsting, Waldemar Zylka, Hilmar Kühl, Axel Wetter, Nika Guberina
Parent Title (English):Radiation Protection Dosimetry
Document Type:Article
Date of Publication (online):2021/12/16
Year of first Publication:2021
Publishing Institution:Westfälische Hochschule Gelsenkirchen Bocholt Recklinghausen
Release Date:2021/12/16
First Page:237
Last Page:246
Departments / faculties:Fachbereiche / Elektrotechnik und angewandte Naturwissenschaften
Licence (German):License LogoEs gilt das Urheberrechtsgesetz

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