[Application of 18FDG-PET in the diagnosis of lung cancer].
OBJECTIVE
To evaluate the ability of 18FDG-PET in the identification of pulmonary mass and preoperative mediastinal lymph node staging of lung cancer.


METHODS
Thirty-four patients with pulmonary neoplasm were evaluated with 18FDG-PET and CT scan respectively. PET data were analyzed semiquantitatively by calculating standardized uptake value (SUV) and also by a visual method. PET and CT results were compared with pathological results.


RESULTS
When the visual method was used, the sensitivity and accuracy for detection of malignant mass of 18FDG-PET were 93% and 85% respectively, whereas those of CT were 63% and 53% (P < 0.05) respectively. The accuracy of preoperative mediastinal lymph node staging was 100% by PET and 78% by CT (P < 0.05). Semiquantitative method also provided an accuracy of 74% for detection of malignant mass.


CONCLUSIONS
Compared with CT, 18FDG-PET was more accurate to discriminate the property of tumor and mediastinal lymph node stage status of lung cancer.
Wang
K
K
Department of Thoracic Surgery, General Hospital of People's Liberation Army, Beijing 100853, China.
Sun
Y
Y
Tian
J
J
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008207:Lymphatic Metastasis / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D019275:Radiopharmaceuticals; D012680:Sensitivity and Specificity; D014055:Tomography, Emission-Computed
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18