周围型肺癌的^(18)F-FDG PET/CT显像  

^(18)F-FDG PET/CT of peripheral lung cancers

作　　者：段钰[1] 周海中[1] 吴晶涛[1] 李斌[1] 

机构地区：[1]江苏省苏北人民医院PET/CT中心,江苏扬州225001

出　　处：《中国医学影像技术》2013年第3期420-424,共5页Chinese Journal of Medical Imaging Technology

摘　　要：目的探讨周围型肺癌18F-FDG PET/CT显像特点及其最大标准摄取值(SUVmax)与肺癌的病理类型及病灶大小的相关性。方法回顾性分析50例经病理证实的周围型肺癌的18F-FDG PET/CT及螺旋CT资料,分析肺癌病理类型、病灶大小与SUVmax的相关性。结果以SUVmax≥2.5作为判断恶性的标准,本组18 F-FDG PET/CT阳性率为92.00%(46/50)。鳞癌的SUVmax明显高于腺癌(P<0.05);病灶大小与SUVmax呈正相关(r=0.674,P<0.001)。结论 18F-FDG PET/CT显像对诊断周围型肺癌有很高价值,结合螺旋CT形态学特点,能初步判断肺癌的病理类型。Objective： To observe the imaging characteristics of peripheral lung cancer on 18F-FDG PET/CT, as well as the correlation between the maximal standardized uptake value （SUVmax） and the pathological types and size of the lesions. Methods： Data of 18F-FDG PET/CT and MSCT for 50 patients with peripheral lung cancer confirmed by pathology were analyzed retrospectively. The correlation between SUVmax of lesions and the pathological types and size were analyzed. Results： Taking SUVmax=2.5 as the cutoff for malignant or benign lesions, the positive rate was 92.00% （46/50）. SUVmax of squamous cell carcinoma was higher than that of adenocarcinoma （P〈0.05）. There was positive correlation between the size and SUVmax of the lesions （r=0.674, P〈0.001）. Conclusion： Combined with morphological characteristics of MSCT, 18F-FDG PET/CT has high value in diagnosing peripheral lung caner, as well as in preliminary judgment of their pathological types.

关 键 词：肺肿瘤 正电子发射型体层摄影术 体层摄影术 X线计算机 18F氟脱氧葡萄糖 

分 类 号：R734.2[医药卫生—肿瘤] R817.4[医药卫生—临床医学]