EXPERIMENTAL EXAMINATION OF RADIATION DOSES OF DUAL- AND SINGLE-ENERGY COMPUTED TOMOGRAPHY IN CHEST AND UPPER ABDOMEN IN A PHANTOM STUDY
| Autor: | Sandra Maier, Sebastian Zensen, Axel Wetter, Hilmar Kühl, Michael Forsting, Waldemar Zylka, Marcel Opitz, Nika Guberina, Denise Bos, Britta König, Sebastian Blex |
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| Rok vydání: | 2021 |
| Předmět: |
Medizin
Suspected pulmonary embolism Computed tomography Radiation Radiation Dosage Ct dose index Imaging phantom 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Ct examination medicine.artery Abdomen Medicine Radiology Nuclear Medicine and imaging Upper abdomen Aorta Radiological and Ultrasound Technology medicine.diagnostic_test Phantoms Imaging business.industry Public Health Environmental and Occupational Health General Medicine Thorax 030220 oncology & carcinogenesis Tomography X-Ray Computed business Nuclear medicine |
| Zdroj: | Radiation Protection Dosimetry. 193:237-246 |
| ISSN: | 1742-3406 0144-8420 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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