机化性肺炎^(18)F-FDGPET/CT征象分析  

^(18)F-FDGPET/CT Features of Patients with Organizing Pneumonia

作　　者：韩佩[1] 陈萍[1] 王丽娟[1] 

机构地区：[1]广州医学院第一附属医院PET/CT中心,广东广州510230

出　　处：《中国医学影像学杂志》2013年第2期81-84,共4页Chinese Journal of Medical Imaging

摘　　要：目的分析机化性肺炎的18F-FDGPET/CT显像特点。资料与方法回顾性分析11例经病理活检证实的机化性肺炎患者的PET/CT表现,分析病灶糖代谢增高原因以及同机CT表现。结果 11例病灶18F-FDG呈不同程度增高,最大标准摄取值(SUVmax)为1.9～13.7,中位SUVmax为5.8。具有支气管气相病灶SUVmax高于无支气管气相病灶(P<0.05)。同机CT征象中呈团片状实变影3例,呈结节或肿块状8例。病灶宽基底贴近胸膜9例,边缘呈向心性弓形凹陷7例,病灶周边可见渗出病灶9例。结论机化性肺炎18F-FDGPET/CT糖代谢增高水平反映了病灶的活性及严重性,单从糖代谢增高水平对疾病的诊断价值有限。同机CT图像可以显示病灶细节,有助于鉴别诊断。Purpose To analyze the ^18F-FDG PET/CT image features of organizing pneumonia. Materials and Methods The PET/CT performance of 11 patients with pathologically confirmed organizing pneumonia was evaluated retrospectively. Referenced with the relevant domestic and international literatures, the reasons for increased glucose metabolism in lesions and the CT performance of the same machine were analyzed. Results In all eleven lesions ^18F-FDG uptake was increased with different degree, with the maximum standardized uptake value （SUV_max） ranged from 1.9 to 13.7, and a median SUV of 5.8, The SUV in bronchogram lesions was higher than those in non-bronchogram lesions （P〈0.05）. The CT signs of the same machine showed a shape of pellet with flake opacities in three cases, and a shape of either nodule or mass-like in other eight cases. There were nine lesions with wide base close to the pleura, seven cases with edge showing concentric bow depression, nine cases with visible oozing lesions in the periphery. Conclusion In organizing pneumonia, the elevated level of ^18F-FDG PET/ CT glucose metabolism reflects the activity and severity of lesions, which however has a limited role in the diagnosis. The same machine CT images can be used to show details of lesions, which may be helpful to differentiate organizing pneumonia from other diseases.

关 键 词：肺炎 正电子发射断层显像术 氟脱氧葡萄糖F18 体层摄影术 X线计算机 

分 类 号：R563.1[医药卫生—呼吸系统] R445.6[医药卫生—内科学]