Roy S, Suryavanshi K, Sridhar P S, Visariya B, Shrivastava S
Department of Radiation Oncology, Hcg-Ics Khubchandani Cancer Centre, Mumbai, India.
Department of Radiation Oncology, Health Care Global Enterprises Ltd, Bengaluru, India.
Radiography (Lond). 2025 Aug;31(5):103012. doi: 10.1016/j.radi.2025.103012. Epub 2025 Jul 7.
The CyberKnife® (CK) system is capable of treating localised brain lesions with the help of a 6D skull tracking system. Hair position plays a crucial role in the success of CK radiosurgery for female brain lesion patients. This study aims to compare the intrafraction offset variation in two different hair setups patients treated using CK with U-Plast thermoplastic mask, in terms of 6D skull motion assessment and positional satisfaction.
A retrospective analysis of 40 female intracranial lesion patients treated using CK stereotactic radiosurgery (SRS). Total populations of patients were divided into two groups based on their hair setup. Group A patients hair placed below the shoulder level, keeping their hair out and divided into two sections, and group B patients was positioned all their hair settled down on their head and shoulder area. 6D skull motion assessment between both hair setup and positional satisfaction was evaluated using Microsoft Excel statistical tools.
The study's results indicates the six directional mean intrafractional setup errors and 3D vector displacement of translational movements of group B were recorded significantly less as compared to the group A patients. Patient satisfaction regarding hair positioning in group B was 36.9 percent greater than in group A, while overall satisfaction in group B surpassed that of group A by 48.1 percent.
Study findings suggests significant differences in both 6D skull motion and positional satisfaction between the two groups, These findings emphasize the importance of considering group B hair setup variations in patient setup to enhance the efficacy and patient experience of CK radiosurgery.
This study emphasizes the importance of group B type hair setup protocols in female patients undergoing CK-SRS.
射波刀（CyberKnife®，CK）系统能够借助6D颅骨追踪系统治疗局限性脑病变。对于女性脑病变患者，头发位置在CK放射外科手术的成功中起着关键作用。本研究旨在比较使用CK和U-Plast热塑性面罩治疗的两组不同头发设置患者在6D颅骨运动评估和位置满意度方面的分次内偏移变化。
对40例接受CK立体定向放射外科手术（SRS）的女性颅内病变患者进行回顾性分析。根据头发设置将患者总体分为两组。A组患者的头发置于肩部水平以下，散开并分成两部分，B组患者的头发全部梳理到头顶和肩部区域。使用Microsoft Excel统计工具评估两种头发设置之间的6D颅骨运动评估和位置满意度。
研究结果表明，与A组患者相比，B组患者的六个方向的平均分次内设置误差和平移运动的3D矢量位移明显更小。B组患者对头发定位的满意度比A组高36.9%，而B组的总体满意度比A组高48.1%。
研究结果表明两组在6D颅骨运动和位置满意度方面存在显著差异。这些发现强调了在患者设置中考虑B组头发设置变化对提高CK放射外科手术疗效和患者体验的重要性。
本研究强调了B组型头发设置方案在接受CK-SRS的女性患者中的重要性。
