Diagnostic Effect of PET-CT on Lymph Node Metastasis in Non-small Cell Lung Cancer
SHEN Jiangyu
LI Wengui
YANG Liping
ZHANG Jie
Abstract：Objective Analyze the diagnostic effect of positron emission tomography(PET)-computed tomography(CT)on lymph node metastasis in non-small cell lung cancer(NSCLC).Methods Retrospective analysis of clinical data was conducted in 110 NSCLC patients admitted to Tianjin Baodi District People's Hospital from April 2021 to September 2023.All patients underwent multi-slice spiral CT and PET-CT examinations.Using pathological results as the gold standard,compare the diagnostic efficacy of CT and PET-CT for lymph node metastasis in NSCLC.Compare the iodine concentration and water concentration of the lesion during CT examination between NSCLC lymph node metastasis patients and non-metastasis patients,as well as the maximum standard uptake value and lymph node diameter during PET-CT examination.Results The pathological examination results showed that among 110 NSCLC patients,39 cases had lymph node metastasis and 71 cases had non-metastasis.Multi-slice spiral CT examination showed 22 cases of lymph node metastasis and 47 cases of non-metastasis.PET-CT examination showed 33 cases of lymph node metastasis and 63 cases of non-metastasis.The sensitivity,specificity,accuracy,positive predictive value,and negative predictive value of PET-CT in diagnosing lymph node metastasis were significantly higher than those of multi-slice spiral CT(P<0.05).PET-CT examination showed that the maximum standard uptake value and lymph node short diameter in patients with lymph node metastasis were significantly higher than those in patients without lymph node metastasis(P<0.05).Multi-slice spiral CT examination showed that the iodine concentration in patients with lymph node metastasis was significantly lower than that in patients without lymph node metastasis(P<0.05).There was no significant difference in water concentration between patients with lymph node metastasis and those without metastasis(P>0.05).Conclusion PET-CT examination helps to determine whether lymph node metastasis has occurred in NSCLC patients,and the diagnostic efficiency of this examination method is better than that of multi-slice spiral CT,which is worth promoting and using.
Keywords：NSCLCLymph Node MetastasisDiagnosisImaging ExaminationPET-CTEffect
Publication Date：2024-01-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 64-67 )