增强CT、HRCT及18 F-FDG PET/CT对早期周围型肺癌的诊断价值比较

摘要

Objective To discuss the diagnostic value of the enhanced CT,HRCT and 18 F-FDG PET/CT in the early peripheral lung cancer. Methods Retrospective analysis of 42 patients with suspected early lung cancer in our hospital from January 2011 to December 2013 were performed. The analysis indexes included enhanced CT,HRCT,and 18 F-FDG PET/CT findings. Results The sensitivity of diagnosis of early peripheral lung cancer( SEN),specificity( SPE),the positive predictive value( PV+),the negative predictive value( PV-),the Youden index of 18 F-FDG PET/CT were higher than those of enhanced CT and HRCT. There was statistical significance in CT value after enhancement and CT net value difference( P 0.05），而增强后Ct值和CT净增值周围型肺癌组明显高于非周围型肺癌组，差异有统计学意义（ P <0.05）。且周围型肺癌组的标准化最大摄取量（ SUVmax）水平也明显高于非周围型肺癌组，差异有统计学意义（ P <0.05）。结论18 F-FDG PET/CT对早期周围型肺癌的诊断效能高于增强CT和HRCT，而增强CT中CT净增值在判断周围型肺癌时有实际意义，单纯HRCT诊断效能较低。