ABSTRACT
ObjectiveTo evaluate the effect and complication of whole γ-knife stereotactic radiotherapy on the non-small cell lung cancer and explore the value of γ-knife stereotactic radiotherapy in treatment of non - small cell lung cancer. Methods42 patients with non -small cell lung cancer:γ-knife radiotherapy patients ,4 ～ 8Gy once a day,five times a week,4 ～ 10times and 40 ～50Gy in total. ResultsThe overall response rate (CR + PR) in γ-knife was 71.4％. The1-,2-and 3-year survival rates were 95.5％, 59.5％, 33.3％. ConclusionCompared with conventional radiation,γ-knife stereotactic radiotherapy could achieve tumor dose escalation,and give the normal tissue better protection at the same time. It could improve the tumor control rate of non-small cell lung cancer,improve long survival rate,and so could reduce the radiation reaction.
ABSTRACT
Objective To evaluate the adaption,effectiveness,dose,complication of the treatment for cranio pharygiomas with gamma knife surgery.Methods Gamma knife surgery was performed in 41 patients.Patients with mixed solid and cystic tumors were treated with stereotaxic aspiration while six cases were treated with divergence surgery prior to gamma knife therapy.The central dose ranges from 17.1 ～40 Gy(29.6Gy in average).The patients were treated at 30%～50% equal dose curve with 6 ～14Gy of tumormargin dose(9.5Gy in average).The exposure dose of the optic nerve and optic tract is less than 10Gy.Results Of twenty-nine patients who were followed up from 6 to 100 months,sixteen had disappeared or decreased tumor,six had unchanged,two was performed craniotomy one year or three years after gamma knife surgery,and the remaining five were dead one year to three years.The tumor control rate was 75.9%(22/29).Conclusion The treatment of stereotaxic radiation with single and high dose is sensitive to most of the solid craniopharyngioma,and the treatment of stereotaxic resection combined with gamma knife surgery may be feasible for the recurrent mixed solid and cystic craniopharyngioma.