锥形束CT分析发泡胶个体化头枕在头颈部肿瘤调强放射治疗中的应用

发布时间：2018-03-16 09:56

本文选题：发泡胶　切入点：个体化头枕　出处：《放射学实践》2017年05期 　论文类型：期刊论文

【摘要】：目的:探讨发泡胶个体化头枕在头颈部肿瘤调强放射治疗体位固定中的应用价值。方法:选取92例头颈部肿瘤患者,共进行589次锥形束CT(CBCT)扫描,其中44例患者采用发泡胶个体化头枕体位固定(个体化组),进行了252次CBCT扫描,48例患者采用标准化头枕体位固定(标准组),进行了337次CBCT扫描。分析摆位误差,对误差结果进行分析并记录成小结供以后摆位时参考,记录两组患者的摆位误差结果并进行统计学分析。结果:个体化组在X、Y和Z轴的线性误差分别为(0.85±0.68)mm、(1.17±0.87)mm和(1.00±0.81)mm,旋转误差分别为(0.52±0.45)°、(0.72±0.49)°和(0.57±0.47)°;标准组在X、Y和Z轴的线性误差分别为(1.15±0.90)mm、(1.48±1.20)mm和(1.08±0.81)mm,旋转误差分别为(0.68±0.52)°、(0.77±0.55)°和(0.60±0.44)°;个体化组在X、Y轴的线性误差、X轴的旋转误差小于标准组,差异有统计学意义(P值分别为0.000、0.001、0.000)。小结前标准组Y轴的线性误差大于小结后(P=0.001),个体化组小结前与小结后的线性误差和旋转误差差异均无统计学意义(P0.05)。结论:相对于标准化头枕,个体化头枕可以减少X、Y轴的线性误差及X轴的旋转误差,个体化头枕体位固定稳定,摆位可重复性高,可在临床中推广应用。
[Abstract]:Objective: to investigate the application value of styrofoam individualized head pillow in position fixation of head and neck tumor. Methods: 92 patients with head and neck tumor were examined with CT-CBCTs for 589 times. Among them, 44 cases were treated with styrofoam individualized head position fixation (individualized group), and 48 cases with standardized head position fixation were performed CBCT scan for 252times (standard group, 337 times CBCT scan). The error results are analyzed and recorded as a summary for future reference. Results: the linear errors of XY and Z axis in the individualized group were 1.17 卤0.87 mm and 1.00 卤0.81 mm respectively, and the rotation errors were 0.52 卤0.45 掳0.72 卤0.49 掳and 0.57 卤0.47 掳, respectively, and the linear errors in the standard group were 0.72 卤0.49 掳and 0.57 卤0.47 掳, respectively. The rotation errors were 1.48 卤1.20mm and 1.08 卤0.81mm. the rotation errors were 0.68 卤0.52 掳, 0.77 卤0.55 掳and 0.60 卤0.44 掳, respectively. The difference was statistically significant (P = 0.000 ~ 0.001 ~ 0.000 ~ 0.000). The linear error of Y axis in the standard group was higher than that in the back of the nodule, but there was no significant difference in the linear error and the rotation error between the two groups. Conclusion: compared with the standard headrest, the linear error and rotation error of the standard group are not significantly different from those of the standard headrest, and there is no significant difference in the linear error and rotation error between the pre-nodule and the post-nodule in the individualized group. The individualized head pillow can reduce the linear error and the rotation error of the X axis. The position of the individual head pillow is stable and the pendulum position is reproducible. It can be popularized and applied in clinic.
【作者单位】：华中科技大学同济医学院附属同济医院肿瘤科;
【分类号】：R730.44;R739.91

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