螺旋断层放疗在肿瘤治疗中的应用

Clinical application of helical tomotherapy in tumor therapy

螺旋断层放疗是cT和直线加速器结合的放疗设备，具有360度照射、兆伏级螺旋cT（MVCT）影像引导、自适应计划等技术，可进行调强放疗、自适应放疗、立体定向外科等多种功能，适应证广泛。

Helical tomotherapy is the radiation treatment device that combined CT imaging with a line- ar accelerator, and capable of implementing 360-degree intensity modulated radiation therapy （IMRT）, MVCT image guidance, adaptive therapy, stereotactic radio-surgery （SRS） and stereotactic body radiation treatment （SBRT） etc. A very broad spectrum of tumor can be treated by helical tomotherapy.