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目的观察肺肿瘤立体定向放疗后靶区周围肺组织的CT表现。方法回顾性分析68例肺肿瘤立体定向放疗后患者,通过CT随访比较治疗前后靶区周围肺组织的CT表现。结果治疗后2个月总有效率(CR+PR+SD)99%。27例肿块消失或缩小后呈细条索状改变、边缘清晰,或呈薄片状改变,15例肿块消失或缩小后呈索状、结节状改变,放射性肺炎发生率为62%(42/68)。结论肺肿瘤立体定向放疗后靶区周围肺组织的CT表现不同,放疗后定期CT复查,可使患者得到及时治疗并提高患者生活质量。
Objective To observe the CT findings of lung tissue around the target area after stereotactic radiotherapy of lung tumors. Methods A retrospective analysis of 68 cases of lung cancer patients after stereotactic radiotherapy, by CT follow-up comparison of the CT imaging of lung tissue around the target area before and after treatment. Results The total effective rate 2 months after treatment (CR + PR + SD) 99%. Twenty-seven cases disappeared or contracted, and showed a thin cord-like change with sharp edges or thin slices. Fifteen lesions disappeared or contracted, which were cord-like and nodular in shape. The incidence of radioactive pneumonia was 62% (42/68) . Conclusion The CT findings of lung tissue around the target area after stereotactic radiotherapy of lung cancer are different. Regular CT review after radiotherapy can make the patients get timely treatment and improve the quality of life of patients.