三维适形放射治疗计划中的三维可视化系统

在进行三维适形放射治疗之前，需要运用三维医学可视化技术，获取有关病灶区的三维视觉信息（病灶的体积、空间定位、病灶与重要器官间的相对位置等），并确定靶区，以供治疗与方案评估，从而实现精确地计划。本文根据三维适形放射治疗计划的需要，开发了用于三维适形放射治疗计划的三维可视化系统。实验证明，运用该三维可视化系统，可以达到预期目标。

3D Visualization System in 3D Conformal Radiotherapy Treatment Planning

When 3D conformal radiotherapy (3D CRT) is employed for tumor treatment, the 3D visual information about tumor, including the volume and the positioning of the tumor, and as well as the relative position between the tumor and its adjacent tissues, should be obtained using 3D visualization techniques, so that the target is determined for virtual radiotherapy and program evaluation, thus accurate planning can be realized. A 3D visualization system for radiotherapy treatment planning is established in this paper. Experiments demonstrate that the 3D visual information of the tumor and target volume can be precisely determined using the proposed strategies, thus providing a good means for radiotherapy treatment and program evaluation.