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KMID : 1148020180430010008
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조선대학교의대논문집
2018 Volume.43 No. 1 p.8 ~ p.13
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Usefulness of Iterative Reconstruction (IR) in Coronary CT Angiography: Image Quality and Radiation Dose
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Jung Myung-Jin
Jeon Jin-Man
Yoon Eun-Joo
Kim Dong-Hun
Lee Kang-Young
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Abstract
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The goals of this study were to investigate image quality of coronary CT angiography (CCTA) and change of radiation dose by using Adaptive Statistical Iterative Reconstruction (ASIR) technique. 40 subjects with BMI≥25 (A, C groups), 40 subjects with BMI<25 (B, D groups), Groups without ASIR (A, B groups), and with ASIR (C, D groups) were included. There were no statistical differences in image qualities (p>0.05). Radiation doses with application of ASIR were significantly lower than those of ASIR (51-53%, p<0.05). In CCTA scan-nings, ASIR technique helps to reduce radiation dose with preserved image quality.
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KEYWORD
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Tomography, Voltage, Body Mass Index, Iterative reconstruction, Radiation dose
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