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Securing safe and informative thoracic CT examinations-Progress of radiation dose reduction techniques
Takeshi Kubo1, Yoshiharu Ohno2, Joon Beom Seo3
1Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan.
European Journal of Radiology
|October 25, 2016
Summary
Radiation exposure from CT scans is decreasing, approaching chest X-ray levels. This review covers dose reduction techniques, new technologies, and future research directions for CT imaging.
Area of Science:
- Medical Imaging
- Radiology
- Radiation Safety
Background:
- Increasing radiation exposure from computed tomography (CT) examinations necessitates dose reduction strategies.
- Thoracic CT radiation levels are approaching those of multiple chest X-ray examinations.
- Advanced dose reduction capabilities are increasingly available in CT scanners.
Purpose of the Study:
- To review the historical development of CT dose reduction techniques.
- To discuss the impact of newer technologies on radiation dose reduction.
- To identify areas for future investigation in CT radiation dose optimization.
Main Methods:
- Review of historical literature on CT dose reduction.
- Analysis of current technological advancements in CT scanners.
- Identification of emerging trends and research gaps.
Main Results:
- Significant reductions in CT radiation dose have been achieved.
- Thoracic CT radiation exposure is nearing equivalence with several chest X-rays.
- Knowledge of dose reduction methods is crucial for clinical practice and research.
Conclusions:
- CT dose reduction techniques have evolved significantly.
- Newer technologies offer substantial potential for further dose optimization.
- Continued research is essential to refine and advance radiation safety in CT.
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