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The Impact of Weighting Factors on Dual-Energy Computed Tomography Image Quality in Non-Contrast Head Examinations: Phantom and Patient Study
Diagnostics, 15 (2025), 2; 180. https://doi.org/10.3390/diagnostics15020180
Šegota Ritoša, Doris; Dodig, Doris; Kovačić, Slavica; Bartolović, Nina; Brumini, Ivan; Valković Zujić, Petra; Jurković, Slaven; Miletić, Damir

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Šegota Ritoša, D., Dodig, D., Kovačić, S., Bartolović, N., Brumini, I., Valković Zujić, P. ... Miletić, D. (2025). The Impact of Weighting Factors on Dual-Energy Computed Tomography Image Quality in Non-Contrast Head Examinations: Phantom and Patient Study. Diagnostics, 15. (2). doi: 10.3390/diagnostics15020180

Šegota Ritoša, Doris, et al. "The Impact of Weighting Factors on Dual-Energy Computed Tomography Image Quality in Non-Contrast Head Examinations: Phantom and Patient Study." Diagnostics, vol. 15, br. 2, 2025. https://doi.org/10.3390/diagnostics15020180

Šegota Ritoša, Doris, Doris Dodig, Slavica Kovačić, Nina Bartolović, Ivan Brumini, Petra Valković Zujić, Slaven Jurković i Damir Miletić. "The Impact of Weighting Factors on Dual-Energy Computed Tomography Image Quality in Non-Contrast Head Examinations: Phantom and Patient Study." Diagnostics 15, br. 2 (2025). https://doi.org/10.3390/diagnostics15020180

Šegota Ritoša, D., et al. (2025) 'The Impact of Weighting Factors on Dual-Energy Computed Tomography Image Quality in Non-Contrast Head Examinations: Phantom and Patient Study', Diagnostics, 15(2). doi: 10.3390/diagnostics15020180

Šegota Ritoša D, Dodig D, Kovačić S, Bartolović N, Brumini I, Valković Zujić P, i sur.. The Impact of Weighting Factors on Dual-Energy Computed Tomography Image Quality in Non-Contrast Head Examinations: Phantom and Patient Study. Diagnostics [Internet]. 14.01.2025. [pristupljeno 16.01.2025.];15(2). doi: 10.3390/diagnostics15020180

D. Šegota Ritoša, et al., "The Impact of Weighting Factors on Dual-Energy Computed Tomography Image Quality in Non-Contrast Head Examinations: Phantom and Patient Study", Diagnostics, vol. 15, br. 2, Siječanj 2025. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:184:740973. [Citirano: 16.01.2025.]

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Podaci o radu
Naslov (engleski)The Impact of Weighting Factors on Dual-Energy Computed Tomography Image Quality in Non-Contrast Head Examinations: Phantom and Patient Study
AutorDoris Šegota Ritoša
AutorDoris Dodig
AutorSlavica Kovačić
AutorNina Bartolović
AutorIvan Brumini
AutorPetra Valković Zujić
AutorSlaven Jurković
AutorDamir Miletić
Autorova ustanovaSveučilište u Rijeci
Medicinski fakultet
(Katedra za medicinsku fiziku i biofiziku)
Autorova ustanovaSveučilište u Rijeci
Medicinski fakultet
(Katedra za radiologiju)
Znanstveno / umjetničko
područje, polje i grana		BIOMEDICINA I ZDRAVSTVO
Kliničke medicinske znanosti
Radiologija
Sažetak (engleski)
Background: This study aims to evaluate the impact of various weighting factors (WFs) on the quality of weighted average (WA) dual-energy computed tomography (DECT) non-contrast brain images and to determine the optimal WF value. Because they simulate standard CT images, 0.4-WA reconstructions are routinely used. Methods: In the initial phase of the research, quantitative and qualitative analyses of WA DECT images of an anthropomorphic head phantom, utilizing WFs ranging from 0 to 1 in 0.1 increments, were conducted. Based on the phantom study findings, WFs of 0.4, 0.6, and 0.8 were chosen for patient analyses, which were identically carried out on 85 patients who underwent non-contrast head DECT. Three radiologists performed subjective phantom and patient analyses. Results: Quantitative phantom image analysis revealed the best gray-to-white matter contrast-to-noise ratio (CNR) at the highest WFs and minimal noise artifacts at the lowest WF values. However, the WA reconstructions were deemed non-diagnostic by all three readers. Two readers found 0.6-WA patient reconstructions significantly superior to 0.4-WA images (p < 0.001), while reader 1 found them to be equally good (p = 0.871). All readers agreed that 0.8-WA images exhibited the lowest image quality. Conclusions: In conclusion, 0.6-WA reconstructions demonstrated superior image quality over 0.4-WA and are recommended for routine non-contrast brain DECT.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaDiagnostics
Brojčani podacivol. 15, br. 2, 180
e-ISSN2075-4418
DOIhttps://doi.org/10.3390/diagnostics15020180
URN:NBNurn:nbn:hr:184:740973
Datum objave publikacije2025-01-14
URL dokumentahttps://www.mdpi.com/2075-4418/15/2/180
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Imenovanje 4.0 međunarodna (CC BY 4.0)
Datum i vrijeme pohrane2025-01-16 09:03:24