体部伽玛刀治疗头颈部肿瘤定位方法探讨

Exploration of the positioning method in radiotherapy of head and neck tumors with the body gamma-knife

目的探讨体部伽玛刀治疗头颈部肿瘤的定位方法。方法应用在OUR-QGD型体部伽玛刀定位系统基础上发展的定位头架及其配套部件,对我院153例头颈部肿瘤患者进行CT扫描定位。结果伽玛刀治疗后3个月患者临床症状的改善情况及CT或PET-CT随访复查情况表明,总有效率达88.9%。结论应用定位头架对头颈部肿瘤行体部伽玛刀治疗能够精确定位、精确治疗,极大提高了头颈部肿瘤伽玛刀治疗的准确性。

Objective To explore the positioning method in radiotherapy of head and neck tumors with the body gamma-knife.Methods One hundred and fifty-three cases of head and neck tumors had their tumor sites fixed with CT scanning,with the positioning frame and accessories developed out of the OUR-QGD gamma-knife body positioning system.Results Three months after radiotherapy with gamma-knife,symptom improvement and medical reexaminations with CT and PET-CT indicated that good therapeutic effects were achieved,with a total effective rate of 88.9%.Conclusion Precise positioning and accurate treatment could be achieved by using the positioning frame and accessories in the treatment of head and neck tumors with body gamma-knife.It could improve considerably the accuracy of head and neck tumor treatment.