使用移动和固定C-arms对比计算机断层扫描的手术内3D成像有效剂量的比较,在评估腰椎脊柱时
H Stadthalter1, A Grafenberg2, U Liebegut2
1Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Department of Trauma and Orthopedic Surgery, Erlangen, Germany.
Global spine journal
|April 17, 2025
概括
术内3D成像辐射剂量与腰椎评估的CT扫描相当. 选择正确的C臂设置至关重要,以尽量减少患者的辐射暴露.
科学领域:
- 医疗成像医学成像
- 放射学 放射学是指放射学
- 辐射剂量计 辐射剂量计
背景情况:
- 术内三维 (3D) 成像通过确保精确的植入物放置来提高患者的安全性,可能消除了术后CT扫描的需要.
- 与传统CT扫描相比,与手术内3D成像相关的有效辐射剂量数据有限.
研究的目的:
- 为了比较使用移动和固定C臂的手术内3D成像的有效辐射剂量与用于腰椎评估的CT成像的有效辐射剂量.
- 评估不同C臂预设对有效辐射剂量的影响.
主要方法:
- 有效的辐射剂量使用人类形象幻影进行测量.
- 用临床预设进行了移动 (Cios Spin) 和固定 (ARTIS pheno) C臂的测量.
- 为了进行比较,使用了高对比度CT成像协议 (SOMATOM X.cite).
主要成果:
- 移动C臂的有效剂量在0.51 ± 0.02 mSv到3.14 ± 0.01 mSv之间.
- 固定C臂的有效剂量从0.52 ± 0.0 mSv到1.6 ± 0.02 mSv不等.
- CT成像的有效剂量为2.0mSv,相当于手术期间的3D成像.
结论:
- 术内3D成像的有效剂量与腰椎手术的CT扫描相似.
- 选择适当的内科手术方案至关重要,潜在的剂量变化高达六倍.
- 遵守ALARA原则和明确的指示对于尽量减少辐射暴露至关重要.
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