| Zeng Lingming,Sun Quanfu,Xu Hui,et al.Exploration of radiation protection strategies in low-dose CT[J].Chinese Journal of Radiological Medicine and Protection,2026,46(5):439-444 |
| Exploration of radiation protection strategies in low-dose CT |
| Received:April 03, 2026 |
| DOI：10.3760/cma.j.cn112271-20260403-00124 |
| KeyWords:Low-dose CT Radiation protection Artificial intelligence Photon-counting detector CT |
| FundProject: |
| Author Name | Affiliation | E-mail | | Zeng Lingming | Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China | | | Sun Quanfu | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Xu Hui | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Niu Yantao | Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China | | | Liu Deming | Institute of Occupational Health and Radiological Health, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China | | | Li Zhenlin | Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China | | | Xia Chunchao | Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China | xiachunchao@wchscu.cn |
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| Abstract:: |
| The widespread application of ionizing radiation-based medical imaging technologies such as CT has made precise control of radiation dose a research hotspot in this field. Based on clinical practice and research on low-dose CT (LDCT), this paper systematically reviews the application value and technical limitations of ultra-low tube voltage, automatic tube current modulation, and deep learning reconstruction algorithms in reducing radiation dose. It also explores low-dose optimization strategies for specialized imaging techniques, including photon-counting CT, PET/CT, and PET/MR. In light of the latest evidence-based medicine findings, the clinical rationality and practical efficacy of shielding protection for sensitive organs during CT examinations are re-evaluated. This review aims to support the clinical implementation of the ALARA principle, achieve an optimal balance between radiation safety and diagnostic performance, and provide new insights and evidence-based guidance for the scientific and individualized adjustment of radiation protection strategies. |
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