Abstract:
PURPOSE:The study aims to investigate the role of 18F-alfatide positron emission tomography/computed tomography (PET/CT) in predicting the short-term outcome of concurrent chemoradiotherapy (CCRT) in patients with advanced non-small cell lung cancer (NSCLC). METHODS:Eighteen patients with advanced NSCLC had undergone 18F-alfatide PET/CT scans before CCRT and PET/CT parameters including maximum and mean standard uptake values (SUVmax/SUVmean), peak standard uptake values (SUVpeak) and tumor volume (TVPET and TVCT) were obtained. The SUVmax of tumor and normal tissues (lung, blood pool and muscle) were measured, and their ratios were denoted as T/NT (T/NTlung, T/NTblood and T/NTmuscle). Statistical methods included the Two-example t test, Wilcoxon rank-sum test, Receiver-operating characteristic (ROC) curve analysis and logistic regression analyses. RESULTS:We found that SUVmax, SUVpeak, T/NTlung, T/NTblood and T/NTmuscle were higher in non-responders than in responders (P = 0.0024, P = 0.016, P < 0.001, P = 0.003, P = 0.004). According to ROC curve analysis, the thresholds of SUVmax, SUVpeak, T/NTlung, T/NTblood and T/NTmuscle were 5.65, 4.46, 7.11, 5.41, and 11.75, respectively. The five parameters had high sensitivity, specificity and accuracy in distinguishing non-responders and responders. Multivariate logistic regression analyses showed that T/NTlung was an independent predictor of the short-term outcome of CCRT in patients with advanced NSCLC (P = 0.032). CONCLUSIONS:18F-alfatide PET/CT may be useful in predicting the short-term outcome of CCRT in patients with advanced NSCLC.
journal_name
Eur J Nucl Med Mol Imagingauthors
Luan X,Huang Y,Gao S,Sun X,Wang S,Ma L,Teng X,Lu H,Yu J,Yuan Sdoi
10.1007/s00259-016-3505-3subject
Has Abstractpub_date
2016-12-01 00:00:00pages
2336-2342issue
13eissn
1619-7070issn
1619-7089pii
10.1007/s00259-016-3505-3journal_volume
43pub_type
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