The diagnostic sensitivity, specificity, accuracy, positive predictive value and negative predictive value of CT is 91.7%(55/60), 66.7%(12/18), 85.9%(67/78), 90.2% (55/61) and 70.6%(12/17) respectively.

• B组根据病变PET征象准确诊断59名NSCLC病例，假阴性1例，假阳性2例，敏感性为98.；3%25(59/60)，特异性为88