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Updated: Apr 29, 2026

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Published on: February 21, 2025
Standard chest CT using combined automated tube potential selection and iterative reconstruction: image quality and
In Hye Chae1, Yookyung Kim1, So Won Lee1
1Department of Radiology, School of Medicine, Ewha Womans University, Seoul, South Korea.
Objective:
To evaluate the image quality and radiation dose reduction of chest computed tomography (CT) using combined automated tube potential selection (ATPS) and iterative reconstruction (IR).
Materials And Methods:
Image quality and radiation dose were compared between conventional contrast-enhanced chest CT using 120 kVp and filtered back projection (Protocol A) and CT using ATPS and IR (Protocol B) in 43 patients.
Results:
The effective radiation dose was 3.6 ± 0.4 mSv for Protocol A and 2.2 ± 0.6 mSv for Protocol B (mean dose reduction, 39.7%). Protocol B showed diagnostic image quality in all patients.
Conclusion:
ATPS and IR allows for radiation dose reduction while maintaining diagnostic image quality.
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