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Endarko
Department of Physics, Faculty of Science and Analytical Data Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111
Physics

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Image Quality Assessment of In-House Phantom for Pediatric Computed Tomography Audiena Gelung Prayitno; Dafa Miftahuddin; Aditya Prayugo Hariyanto; M. Roslan A Gani; Endarko
Jurnal Fisika dan Aplikasinya Vol 21 No 2 (2025): June 2025 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v21i2.20434

Abstract

Computed tomography (CT) offers several advantages. However, it involves a high dose of radiation exposure. In pediatric CT scans, reducing the radiation dose can lead to increased noise and lower image quality. Generally, there is a significant relationship between radiation dose and diagnostic image quality. This research investigates and analyzes the correlation between low-dose radiation and image quality in pediatric CT scans. This study used in house pediatric phantoms (7 year). Twelve artificial cylinder targets were fabricated with diameters 3, 5, 8, and 10 mm, and CT densities +100, -400, -750 HU. The image quality was performedusing CT-Scan 128 slice with parameters of helical scanning using a low dose and standard dose and using 80 and 120 kV. For Signal noise to ratio (SNR), Contrast to Noise Ratio (CNR), Volumetric CT dose index (CTDIvol), SizeSpecific Dose Estimates (SSDE) also investigated. The effective value of the diameter for 7 years was 20.15 cm. Findings suggest, SSDE for in-house pediatric phantoms was found to be 3.71 mGy for low dose and 6.09 for standard dose. For image quality analysis, the low-dose CT protocol has a detection sensitivity of 100% for targets measuring > 5mm in diameter.
Co-Authors Aditya Prayugo Hariyanto Audiena Gelung Prayitno Dafa Miftahuddin M. Roslan A Gani