ESTRO 2025 - Abstract Book

S2973

Physics - Image acquisition and processing

ESTRO 2025

Conclusion: Iodine quantification and HU values from VNC images in the iodine phantom were satisfactory. MEI and 75 keV VMI images are comparable to traditional CT images for dose calculations, but VNC images tend to underestimate bone HU compared to TPS.

Keywords: Dual energy, iodine quantification, spectral image

References: M Jacobsen, D Schellingerhout, C Wood, et. al., Intermanufacturer Comparison of Dual-Energy CT Iodine Quantification and Monochromatic Attenuation: A Phantom Study. Radiology 2018 287(1), 224-234 R Layman, S Leng, K Boedeker, et. al., AAPM Task Group Report 299: Quality Control in Multi-Energy Computed Tomography. Med. Phys. 2024 51(10), 7012-7037

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Digital Poster Using a Predictive Model for Noise Assessment devised from CT Images Across Various Scanner Models to Compare CT Imaging Protocols Hsiang-Chi Kuo 1 , Seng Boh Lim 1 , Usman Mahmood 1 , Cesar Della Biancia 1 , Paul Tamas 2 , Michael Cebisch 2 , Sean berry 1 , Xiang Li 1 , Jean Moran 1 , Laura Cervino Arriba 1