Ishigaki T, Sakuma S, Watanabe M
Department of Radiology, Nagoya University School of Medicine, Japan.
Eur J Radiol. 1988 May;8(2):76-81.
A computer-assisted rotation and stationary conformation radiotherapy system with overrunning multileaf collimators has been developed. This system can produce any shape of target volume, including a number of target areas outside the axis of the rotation, regardless of the location of the axis at 360 degrees rotation irradiation. In addition, by changing the dose rate and deleting a partial region within a field, multiple stationary irradiation can produce more homogeneous target volumes--thus avoiding excessive irradiation to critical organs--than the rotation technique.
一种带有超越式多叶准直器的计算机辅助旋转与固定构象放射治疗系统已被研发出来。该系统能够生成任何形状的靶区体积，包括旋转轴外的多个靶区，无论旋转轴在360度旋转照射时处于何种位置。此外，通过改变剂量率并在射野内删除部分区域，与旋转技术相比，多次固定照射能够产生更均匀的靶区体积，从而避免对关键器官的过度照射。
