肺癌是中国发病率最高的癌症，也是死亡率最高的癌症。

很多患者出现症状时，往往已经是晚期了，这时再治疗效果肯定不太好。

但如果能早期发现肺癌，经过治疗后 5 年生存率可以达到 90% 以上。

也就是说，发现时间对患者的治疗效果非常重要。

想做到「早发现」，最好的办法是肺癌筛查。

低剂量胸部 CT，肺癌筛查利器

过去医疗条件比较落后，检查肺癌只靠胸部 X 光拍片。

这种方法很不保险，容易漏掉或误诊。

随着科技进步，诞生了新的检查方法「低剂量胸部 CT」，

现在越来越多的专家建议用它来替代胸部 X 光拍片。

对于肺癌的高风险人群，目前推荐每年做 1 次低剂量胸部 CT 来进行筛查。

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