| Objective:To explore the PET/CT in the diagnosis of peripheral lung cancer.Methods:Collect 120 cases of the patientsin our hospital who were found to have lung peripheral single solid nodules or masses in the examination conducted by lung CT of our hospital and without specific treatment during the period from December 2014 to December 2016,and carry out PET/CT examination for all the patients involved,according to the illness through electronic bronchoscopy or percutaneous lung wear or surgical biopsies,sputum cytology examination to obtain pathological basis,and the part according to the patient's condition is the anti-inflammatory treatment of the images and that were followed up for 6 months after diagnosis.Results:(1)In the 120 cases of patients,for diagnosis of early peripheral lung cancer,PET/CT sensitivity,specific degrees,accuracy,positive predictive value and negative predictive value,are respectively 92.1%,72.7%,85.0%,85.4%,84.2%.(2)Adenocarcinoma group lesions SUVmax value was lower than that in group squamous carcinoma lesions(P=0.01),found in peripheral lung cancer,adenocarcinoma diagnosis is relatively difficult in clinical work,clinical symptoms late,fetal hydrops.In benign lesions,a higher percentage of tuberculosis,consider associated with regional high incidence.(3)Between benign and malignant groups,leaf,short burr,blood vessels,cluster sign and pleural sag has statistical difference(P <0.05).The signs in the clinical work more than can be found in patients with malignant tumor,according to the characteristics of benign and malignant lesions on CT imaging can improve the diagnostic accuracy,and can reduce PET/CT combined with CT imaging false positive rate.Conclusion:PET/CT imaging examination of early peripheral lung cancer has a high diagnostic value,PET and CT can improve the diagnostic accuracy,at the same time combined with CT can reduce the false positive rate,providing guidance basis for clinical diagnosis. |
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