Clinical value of 18F-FDG PEL CT scan in the diagnosis of thin lung nodules
- VernacularTitle:正电子断层显像联合薄层CT在肺小结节诊断中的价值探讨
- Author:
Yong XIAO
;
Yizhao LI
;
Xiaojun GUO
;
Ning ZHOU
- Publication Type:Journal Article
- Keywords:
Positron-emission tomography;
fluorodeoxyglucose F18;
Pulmonary nodule,solitary
- From:
Chinese Journal of Primary Medicine and Pharmacy
2008;15(10):1644-1645
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the clinical value of 18 F-FDG PET CT scan in the diagnosis of thin lung nodules. Methods 56 solitary cases of nodules in the lungs,nodule size ranged from 1～3 cm,conducted 18 F-FDG PET/CT imaging and thin layer CT scan at the same time, 18 F-FDG PET imaging using visual measurement combined with semi-quantitative method to determine the degree of malignant of the lesions; conducted MPR recon-struction after thin layer CT scan, based on the lesions morphology to determine the degree of malignant. Then com-pared the results of above,and the results of the combination of 18 F-FDG PET imaging and thin layer CT scan,with the pathological results after surgery. Results The sensitivities of PET imaging alone,thln layer CT alone,joint ima-ging diagnosis of SPN are 92.6% ,88.2% ,96.4% ,specificity are 73.3% ,57.1% ,85.7% ,accuracy percentage rate are 89.3% ,80.4% ,94.6% ,the positive predictive values are 92.6% ,91.8% ,96.4% ,and negative predictive val-ues are 84.6% ,61.5% ,92.3% ,respectively. Conclusion 18 F-FDG PET combined with thin layer CT scanning is a very effective method to clinical diagnosis the malignant degree of SPN.
