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肺癌放疗期间位置的不确定会影响治疗效果。为了有效地控制肺癌放疗中的呼吸运动,催眠作为一种全新的控制方法被引入肺癌治疗中。为了验证所提出的方法,选择6名志愿者在专业催眠师的指导下进行试验。所有实验均在相同的环境条件下重复,且分别记录正常状态和催眠状态下呼吸的幅度。呼吸均值和均方根(RMS)结果表明,催眠状态下的平均值和有效值分别为56.6%和64.4%,低于正常状态。其中,催眠状态下的均值和均方根的呼吸幅度分别为16.2 mm、8.6 mm,而正常状态下时分别为37.4 mm、23.9 mm。此外,稳定峰和相邻波的相似性结果表明,催眠状态下不同周期之间的γ指数通过率为16.4%,高于正常状态。文章实验结果表明,催眠作为一种干预的、可替代的呼吸控制方式,可有效地减少呼吸幅度和增加呼吸周期的稳定性。该方法有望在图像引导放射治疗中得到应用。
The uncertainty of the location of lung cancer during radiotherapy will affect the treatment effect. In order to effectively control the respiratory movements in lung cancer radiotherapy, hypnosis was introduced as a new control method into lung cancer treatment. In order to validate the proposed method, 6 volunteers were selected for trial under the guidance of a professional hypnotist. All experiments were repeated under the same environmental conditions and the amplitudes of breathing under normal conditions and hypnosis were recorded separately. The mean respiration and root mean square (RMS) results showed that the average and effective values under hypnosis were 56.6% and 64.4%, respectively, which were lower than normal. Among them, the hypnosis mean and root mean square respiratory amplitudes were 16.2 mm and 8.6 mm, respectively, whereas in the normal state they were 37.4 mm and 23.9 mm, respectively. In addition, the similarity between the stable peak and the adjacent wave shows that the rate of passage of the gamma index between different cycles in hypnosis is 16.4%, which is higher than normal. The experimental results show that hypnosis as an intervention, alternative respiratory control, can effectively reduce the respiratory amplitude and increase the stability of the respiratory cycle. This method is expected to find application in image-guided radiation therapy.