Development of Patient Motion Tracking System during Radiation Therapy

Assuming that the posture of patients is fixed until the completion of treatment only with confirmation of treatment site before the treatment due to the network of radiation therapy system, there is a concern that radiation dose may be administered into a normal tissue rather than a lesion. To continue to observe the motion of patients that might occur during treatment, the system to detect the motion of patients was developed through leveraging the high-definition video camera, C++ programming language and open CV with 2-evolution technique and BLOB technique. The reproducibility of patient posture was very practical since it allowed us to evaluate the change in the posture of patients in real-time by acquiring video in real-time during the treatment. It is essential to develop a system to detect a motion that may take place voluntarily and control the treatment equipment by tracking the motion of patients in a stable and natural posture suitable for the location of treatment. The purpose of this study is to contribute to the implementation of precise radiation therapy by developing a system to consistently observe the motion of patients based on the aforementioned technology.