20.500.12556/DiRROS-31682 Impact of CT tube voltage and anode current on PET/CT image quality a nema IQ phantom study Positron emission tomography/computer tomography is a crucial modality for the quantification of metabolic activity and anatomical structure. Reducing radiation dose, especially in repeated imaging, remains a significant challenge. This study focuses on optimizing computer tomography parameters to reduce dose, while maintaining image quality. The aim of this research was to determine the impact of varying computer tomography tube voltage and anode current, on the quantification of standardized uptake value, contrast-to-noise ratio, and radiation exposure (volume CT dose index, dose-length product). A NEMA IQ body phantom was scanned using various combinations of tube voltage and anode current. Standardized up-take value, contrast-to-noise ratio, volume CT dose index and dose-length product, were evaluated from the different scans. The obtained results were statistically assessed. Reducing tube voltage and anode current did not significantly affect standardized uptake value accuracy but, reduced radiation dose. Image quality (contrast-to-noise ratio) remained diagnostically acceptable, supporting the potential for optimization without compromising accuracy. Optimization of computer tomography parameters (tube voltage, anode current) is feasible and beneficial in clinical practice, as it reduces patient radiation burden while maintaining image quality and standardized uptake value accuracy. PET/CT standardized uptake value quantification dose optimization image quality tube voltage anode current true false true Angleški jezik Srbski jezik (cirilica) Na spletni strani revije navedeno: Nuclear Technology & Radiation Protection is an open access Journal. All articles can be downloaded free of charge and used in accordance with the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 Serbia (https://ntrp.vinca.rs/Editorial%20policy.htm) Neznano 2026-08-06 09:09:57 2026-08-06 09:09:57 2026-08-07 03:58:29 0000-00-00 00:00:00 2026 0 0 Nasl. z nasl. zaslona; Opis vira z dne 30. 7. 2026; Povzetek v angl. in srb.; str. 152-158 iss. 2 Vol. 41 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 61 1452-8185 10.2298/NTRP2602152C 286409987 RAZ_Cavlin_Milana_2026.pdf RAZ_Cavlin_Milana_2026.pdf 1 5BB82754A4ACBB1ABBCDFCA195BB5E88 a8937401fe2183e4349a53c1b61aeea6c6493727fdad0a1d3c643061942aed31 99cd9b97-9166-11f1-af5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=49166 https://doi.org/10.2298/NTRP2602152C 0 d88441dc-9165-11f1-af5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=49165 Univerzitetni klinični center Ljubljana 0 0 0