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在无框架玛刀放射性外科手术期间,患者标记器与高清运动管理系统坐标的变化
Hyeong Cheol Moon1, Doheui Lee2, Young Seok Park1,3
1Department of Neurosurgery, Chungbuk National University Hospital, Cheongju, Korea.
Journal of Korean Neurosurgical Society
|August 10, 2025
概括
使用Leksell Gamma Knife (LGK) IconTM的无框架马刀放射手术 (GKRS) 在脑膜瘤患者中显示出最小的患者标记物运动. 转移患者经历了显著的Y轴移位,这表明在治疗规划期间需要增加边际.
科学领域:
- 神经外科 神经外科
- 辐射瘤学 辐射瘤学
- 医学物理 医学物理
背景情况:
- 莱克塞尔马刀 (LGK) 图标TM可使用高清运动管理 (HDMM) 系统实现无框架马刀放射手术 (GKRS).
- HDMM系统追踪了分数内运动,但没有指定方向转移 (X,Y,Z轴).
研究的目的:
- 使用HDMM系统在无框GKRS期间调查患者标记的坐标移位.
- 在患有脑膜瘤和转移的患者中,分析沿X,Y和Z轴的分数内运动.
主要方法:
- 对2023年1月至9月期间使用LGK IconTM进行无框架GKRS的患者的回顾性分析.
- 使用纳米热塑性面具进行固定;对鼻标记坐标 (X,Y,Z) 的顺序分析.
主要成果:
- 脑膜瘤患者 (n=30) 没有显著的分数内移位 (X:0.07±0.06毫米,Y:0.08±0.46毫米,Z:0.08±0.04毫米).
- 与X轴 (0.33±0.23毫米) 相比,转移患者 (n=30) 呈现出显著的Y轴位移 (0.57±0.37毫米,p<0.05).
- 在转移患者中,在30分钟的光线上线时间后,Y轴位移显著增加.
结论:
- 在无框架GKRS期间,转移患者中Y轴运动最为突出.
- 建议包括在口罩应用期间按下额头,以尽量减少鼻子标记物运动.
- 建议在用LGK IconTM治疗的转移患者的治疗计划中向Y轴添加0.5毫米的边缘.
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