| 摘要: |
| ［摘要］ 目的 分析早期肺癌在数字化摄片机（DR）与低剂量螺旋CT(LDCT)中的影像特点，为早期肺癌的正确诊断提供帮助。方法 回顾经病理确诊的53例早期肺癌患者的DR与LDCT影像表现并进行分析。结果 中央型肺癌DR表现为肺门阴影增大增浓，结节状密度增高阴影等；早期周围型肺癌为圆形、椭圆形密度增高阴影，边缘毛刺、分叶症。LDCT中央型肺癌表现为支气管狭窄,支气管梗阻或气管壁增厚，阻塞性肺部改变，肺门结节；周围型肺癌表现为肺野内的孤立小结节、小斑片状阴影；可见征象分叶征81%、毛刺征65%、胸膜凹陷征53%、血管集束征38%、磨玻璃样征16%等。本组53例中，DR阳性率为33%，LDCT阳性率为90%，两组数据比较差异有统计学意义（χ2=8.63，P<0.01）。结论 低剂量螺旋(LDCT)对早期肺癌的征象及阳性率要明显优于DR，对早期肺癌的诊断、定性有着较大的价值。 |
| 关键词: 早期肺癌 影像 低剂量螺旋CT DR |
| DOI：10.3969/j.issn.1674-3806.2015.09.17 |
| 分类号:R 730.44 |
| 基金项目: |
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| The imaging diagnosis of DR and low dose spiral CT in 53 patients with early lung cancer |
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XU Jing-min
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Department of Radiology, Shengli Oil Field to Gudao Hospital, Shangdong 257231, China
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| Abstract: |
| ［Abstract］ Objective To investigate the characteristics of DR and low dose spiral(LDCT) imaging and to provide diagnosis for early lung cancer.Methods 53 patients with pathologically confirmation on the early stage of lung cancer were retrospectively analyzed. A comparison of the imaging manifestations of DR and LDCT in early lung cancer was performed.Results Central type of lung cancer DR showed hilar enlargement thickening and nodular density increased shadow. Early peripheral lung cancer showed circular, elliptic increased density shadow, with edge burr and lobulated features. Obstructive lung changes and pulmonary nodules were characterized by LDCT central type of lung cancer with 81% in lobulation, 65% in burr, 53% in a pleural sag, 38% in blood vessels of cluster and 16% in GGO. Of 53 cases of patients, DR positive rate was 33% and LDCT positive rate was 90%(χ2=8.63, P<0.01).Conclusion LDCT is better than DR for diagnosis of early lung cancer with obviously signs and higher positive detection rate. |
| Key words: Early lung cancer Image Low dose spiral CT DR |
