Wu Rui, Chen Chao-min
College of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China.
Nan Fang Yi Ke Da Xue Xue Bao. 2010 Jan;30(1):100-2.
To reduce the influence of breathing movement on the location precision of the tumor target in precise radiotherapy for thoraco-abdominal tumors.
An inverse tracking system was developed to track the path of the breathing movement of the tumor target via image guiding. With this system, the displacement of the target in a given time period was tracked and quickly transformed in signals that drove the tracking couch to move inversely relative to the tumor target.
This system can effectively reduce the influence of tumor target breath movement during radiotherapy. Compared with other breath movement control methods, this method avoids prolonged exposure time, allows the patient to breathe at ease and shortens the time of CT scanning.
减少呼吸运动对胸腹部肿瘤精确放疗中肿瘤靶区定位精度的影响。
开发了一种逆向跟踪系统，通过图像引导跟踪肿瘤靶区呼吸运动路径。利用该系统，跟踪靶区在给定时间段内的位移，并迅速将其转换为驱动跟踪床相对于肿瘤靶区进行反向移动的信号。
该系统能有效减少放疗过程中肿瘤靶区呼吸运动的影响。与其他呼吸运动控制方法相比，该方法避免了较长的照射时间，让患者能轻松呼吸，并缩短了CT扫描时间。
