三期动态CT增强扫描联合超声支气管镜对周围型肺癌患者的诊断效能

  目的  研究三期动态CT增强扫描联合超声支气管镜对周围型肺癌患者的诊断效能。  方法  本研究为回顾性研究，将2018年1月~2020年1月在我院确诊的82例周围型肺癌患者设为观察组，另选取同期在我院进行健康体检的志愿者82例作为对照组。所有患者均采取三期动态CT增强扫描以及超声支气管镜检查，比较两组患者的CT值以及CT净增强值，分析单独检测以及联合检测对周围型肺癌的诊断效能。  结果  观察组的CT值、强化峰值以及CT净增强值均高于对照组（P < 0.05）；Ⅲ~Ⅳ期患者的CT值、强化峰值以及CT净增强值均高于Ⅰ~Ⅱ期（P < 0.05）；不同病理分期患者的CT值、强化峰值以及CT净增强值之间的差异有统计学意义（P < 0.05）；联合诊断的特异性高于单独检测（P < 0.05）；联合诊断的曲线下面积高于单独检测（P < 0.05）。  结论  采用三期动态CT增强扫描联合超声支气管镜对周围性肺癌患者具有很好的诊断效能，适宜推广应用。 

Diagnostic efficacy of three-phase dynamic CT enhanced scanning combined with ultrasonic bronchoscopy in patients with peripheral lung cancer

  Objective  To explore the diagnostic efficacy of three-phase dynamic CT enhanced scanning combined with ultrasound bronchoscopy in patients with peripheral lung cancer.  Methods  A retrospective study was conducted in 82 patients (observation group) with peripheral lung cancer diagnosed in our hospital from January 2018 to January 2020. In addition, 82 healthy volunteers who underwent physical examination in our hospital during the same period were selected as the control group. All patients received three-phase dynamic CT enhanced scanning and ultrasound bronchoscopy, and the CT value and net enhanced CT value of patients in the two groups were compared. The diagnostic efficacy of single detection and combined detection for peripheral lung cancer was analyzd.  Results  CT value, enhancement peak value and net enhancement value of CT in observation group were significantly higher than those in control group (P < 0.05). CT value, enhancement peak value and net enhancement value of CT in stage Ⅲ-Ⅳ were significantly higher than those in stage Ⅰ-Ⅱ (P < 0.05). There were statistically significant differences in CT value, enhancement peak value and net enhancement value of CT in patients with different pathological stages (P < 0.05). The specificity of combined diagnosis was significantly higher than that of single detection (P < 0.05). The area under the curve of combined diagnosis was significantly higher than that of single detection (P < 0.05).  Conclusion  Three-phase dynamic CT enhanced scanning combined with ultrasound bronchoscopy has good diagnostic efficacy in patients with peripheral lung cancer and is suitable for application