本文介绍了CT低剂量技术的发展现状，并从心电门控扫描、智能kV扫描、图像重建算法、探测器发展等方面，浅述了新技术的应用对降低CT剂量所起到的作用。%The development situation of low dose CT technology is introduced in this paper, and the effects that the new technology has on reducing CT dose from aspects of ECG gating scanning, intelligent kV scanning, image reconstruction algorithm and the development of detector were also explored.
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