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    • 8. 发明申请
    • RADIATION TREATMENT SYSTEM HAVING A FUNCTION OF COMPENSATING DISPLACEMENT ACCORDING TO BREATHING AND METHOD FOR CONTROLLING THE SYSTEM
    • 具有根据呼吸的补偿位移功能的辐射治疗系统和用于控制系统的方法
    • WO2006062335A1
    • 2006-06-15
    • PCT/KR2005/004153
    • 2005-12-06
    • KOREA UNIVERSITY INDUSTRY AND ACADEMY COOPERATION FOUNDATIONLEE, SukKIM, Chul, YongYANG, Dae, SikCHOI, Myung, Sun
    • LEE, SukKIM, Chul, YongYANG, Dae, SikCHOI, Myung, Sun
    • A61N5/00
    • A61N5/1049A61N5/107A61N2005/1058
    • A radiotherapy system capable of compensating for displacement according to the breathing of a patient, and a method for controlling the same are disclosed. The method includes the steps of: a) irradiating an affected part of the patient who lies on a moving phantom (100) which compensates for displacement of the irradiated part according to breathing of the patient; b) measuring a distance from the irradiated part of the patient to each of ultrasonic sensors (101) using ultrasound; c) extracting displacement of the irradiated part of the patient on the basis of the measured distance; d) generating displacement-compensation information for compensating for the extracted displacement of the irradiated part; and e) moving the moving phantom on the basis of the displacement-compensation information, and compensating for the displacement of the irradiated part. The radiotherapy system acquires the displacement according to the breathing of a patient using an ultrasonic sensor, and adjusts the location of a moving phantom (i.e., a patient bed) using an inverse value of the acquired displacement, such that it recognizes displacement caused by the natural breathing of the patient, reduces a target volume, and ensures patient safety.
    • 公开了能够根据患者的呼吸补偿位移的放射治疗系统及其控制方法。 该方法包括以下步骤:a)照射位于移动体模(100)上的患者的受影响部分,该运动体模(100)根据患者的呼吸补偿照射部位的位移; b)使用超声测量从所述患者的被照射部分到每个超声波传感器(101)的距离; c)基于测量的距离提取患者的被照射部分的位移; d)产生用于补偿被照射部分的提取位移的位移补偿信息; 以及e)基于所述位移补偿信息移动所述移动体模,以及补偿被照射部分的位移。 放射治疗系统根据使用超声波传感器的患者的呼吸获取位移,并且使用所获取的位移的逆值来调整移动体模(即患者床)的位置,使得其识别由 患者的自然呼吸,降低目标体积,并确保患者的安全。