在胸部外科手术中,从形光束计算机断层扫描中给患者进行手术中的辐射剂量
Shinya Kohmaru1, Yuichi Saito2, Takeshi Takata3
1Department of Surgery, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan.
Journal of cardiothoracic surgery
|December 20, 2024
概括
在胸部手术期间使用圆束计算断层扫描 (CBCT) 测量了患者的辐射暴露. 第五至第八个肋间间接收到了最高的辐射剂量,需要进行辐射保护研究.
科学领域:
- 医疗成像医学成像
- 辐射瘤学 辐射瘤学
- 胸部外科手术 胸部外科手术
背景情况:
- 肺部病变的手术内识别通常利用辐射技术,但患者在胸部手术期间的辐射暴露尚未得到充分理解.
- 圆束计算断层扫描 (CBCT) 越来越多地用于混合手术室的胸部手术.
研究的目的:
- 在混合手术室环境中测量患者在手术内CBCT成像期间的辐射暴露.
- 在胸部手术期间,识别患者体内辐射暴露最高的区域.
主要方法:
- 在2019年4月至2023年12月期间,对67名在混合手术室接受手术的患者进行了回顾性研究.
- 使用可穿戴剂量计来测量皮肤辐射暴露,与累积空气克尔玛相比.
- 用计算机模拟来估计手术侧的辐射剂量.
主要成果:
- CBCT扫描的平均数量为2.1,具有100%的手术内识别率.
- 患者皮肤平均辐射剂量为每剂量计3.69 ± 5.48 mGy;累计空气克尔马为25.4 ± 19.3 mGy.
- 第五间肋间空间显示了最高的辐射暴露,在执行四次CT扫描时,第五和第八间肋间空间的辐射暴露增加.
结论:
- 由于混合手术室的物理限制,在手术内CBCT期间,第五至第八间肋间空间是最容易受到辐射的区域.
- 强烈建议对这些特定领域的辐射保护进行进一步的研究.
- 将手术内CBCT扫描限制在最多三次可能有助于在胸部手术期间保护患者免受过度辐射暴露.
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