目的 观察AS64排128层CT在肺部腺癌(LA)的诊断效能并进行分析?方法 选取本院2017年4月至2020年11月收治及跟踪随访的LA病例45例设成研究对象，所有患者皆实施常规胸部CT扫描及AS64排128层CT扫描，依照病理学的检查结果，比较不同方法诊断准确率?特异性以及灵敏度?结果 AS64排128层CT扫描一致性?灵敏度?特异度?准确率?阳性以及阴性预测值分别是0.860?96.30%?88.89%?93.33%?92.86%以及94.12%，均高于胸部CT扫描的0.403?74.07%?66.“,”Objective To observe and analyze the diagnostic efficacy of AS64 row 128 slice CT in lung adenocarcinoma (LA). Methods All 45 cases of LA treated and followed up in our hospital from April 2017 to November 2020 were selected as the research objects. All patients underwent routine chest CT scanning and AS64 row 128 slice CT scanning. According to the pathological examination results， the diagnostic accuracy， specificity and sensitivity of different methods were compared. Results The consistency， sensitivity， specificity， accuracy， positive and negative predictive values of AS64 row 128 slice CT scanning were 0.860， 96.30%， 88.89%， 93.33%， 92.86% and 94.12% respectively， which were higher than those of chest CT scanning (0.403， 74.07%， 66.67%， 71.11%， 76.92% and 63.16%). The sensitivity， accuracy and negative predictive value of AS64 row 128 slice CT were significantly better than those of chest CT (P<0.05). Conclusion AS64 slice 128 slice CT has better consistency， higher sensitivity， accuracy and negative predictive value in the diagnosis of LA， which is worthy of popularization and use.