[Diagnostic value of 18F-fDG Pet/CT in the detection of the cervical lymph nodes metastasis].
OBJECTIVE
To explore the diagnostic value of 18F-FDG PET/CT in the detection of the cervical lymph nodes metastasis.


METHODS
According to the pathological result, the data of neck PET, CT, PET/CT of 20 patients with head and neck tumors were analyzed retrospectively.


RESULTS
The sensitivity, specificity and accuracy of PET, CT and PET/CT in detection cervical lymph nodes metastasis were (92.3%, 85.7%, 90.0%), (77.0%, 57.1%, 70.0%), (92.3%, 100.0%, 95.0%) respectively, the accuracy of PET/CT was better than that of CT alone (P < 0.05) and a little better than that of PET alone. Among 13 cases after irradiation,the correct diagnose was found in seven cases by CT and in 12 cases by PET/CT. Four cases were found with cervical lymph node metastasis in the seven clinical N0 (cN0) patients after functional neck dissection (FND). The preoperative diagnose of PET/CT was completely consistent with the postoperative pathological result.


CONCLUSIONS
18F-FDG PET/CT is better than CT alone and PET alone for the detection of cervical lymph nodes metastasis, especially for the recurrent tumors. It may be served as the indication of neck dissection in the head and neck cancers.
Ke
Zhaoyang
Z
Department of Otolaryngology, the Second Clinical Medical College, Jinan University, Shenzhen, 518020, China. kezhaoyang@tom.com
Liu
Ming
M
Liu
Yuanxian
Y
He
Zhigang
Z
Zhang
Yingnan
Y
Zhang
Wei
W
D000328:Adult; D000368:Aged; D005260:Female; D019788:Fluorodeoxyglucose F18; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008198:Lymph Nodes / Q000000981:diagnostic imaging*; D008207:Lymphatic Metastasis / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D037981:Neck Dissection; D009367:Neoplasm Staging; D049268:Positron-Emission Tomography / Q000379:methods; D012189:Retrospective Studies; D012680:Sensitivity and Specificity
D019788:Fluorodeoxyglucose F18