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Journal Article
Application of Effective Atomic Number for Contrast Agent Imaging using Dual-energy Computed Tomography: A Simulation Study
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- Authors
- Kihong Son, Seunghyung Lee, Hyobin Lee, Yejin Lee, Dongwook Son, Seunghyeon Myeong, Minjoo Chang, Daehong Kim, Myung-Ae Chung
- Issue Date
- 2023-12
- Citation
- Journal of Magnetics, v.28, no.4, pp.443-448
- ISSN
- 1226-1750
- Publisher
- The Korean Magnestics Society
- Language
- English
- Type
- Journal Article
- Abstract
- This simulation study aims to differentiate between contrast media and calcification in blood vessel using the effective atomic number (EAN) extraction method in electromagnetic X-ray computed tomography (CT) imaging. Calibration was performed on six tissue-equivalent materials, three contrast medium, and one calcium solution. The Hounsfield unit (HU) values at 80 kV and 140 ㎸ with electromagnetic spectrum using dualenergy computed tomography (DECT) facilitated this calibration. EAN from the polynomial method was then compared with that from the Stoichiometric method. In 120 ㎸ vascular imaging, when the HU of calcium and iodine contrast media were alike, EAN provided a more pronounced contrast than HU. The iodine contrast agent’s enhancement in EAN was approximately 30.0 %, and in HU, it was 13.0 % relative to calcium. This indicates EAN’s potential to better differentiate contrast media from calcification in clinical contexts.
- KSP Keywords
- Blood Vessels, Computed tomography(C.T), Contrast agent, Contrast media, Dual-energy computed tomography, Effective atomic number, Electromagnetic Spectrum, Equivalent materials, Extraction method, Hounsfield Unit, Simulation study