Abstract:Objective To study the value of 18F-FDG PET/CT and enhanced CT in the delineation of radiotherapy target area for non-small cell lung cancer (NSCLC) and its effect on progression free survival time (PFS) and total survival time (OS). Methods Seventy-eight cases diagnosed as NSCLC treated with radiotherapy in Renmin Hospital of Wuhan University (“our hospital” for short) from January to December 2013 and the radiotherapy target area was delineated with enhanced CT that were enrolled in the enhanced CT group, while 78 NSCLC cases from January to December 2014 treated with radiotherapy in our hospital and the radiotherapy target area was delineated with 18F-FDG PET/CT, that were enrolled in the PET/CT group. The data of the two groups were preserved and compared. Adverse reaction rate of the two groups were compared. Follow-up results of 3 years and evaluation of the quality of life, PFS, OS were compared between the two groups. Results The total effective rate in the PET/CT group (32.05%) was higher than that in the enhanced CT group (14.10%), and the total effective rate of the PET/CT group was higher than the enhanced CT group (P < 0.01). Adverse reaction rate and the incidence degree in the PET/CT group were lower than that in the enhanced CT group (P < 0.05). The lungs V5, V20, V30 in the PET/CT group were better than the enhanced CT group (P < 0.05). After 3 years of follow up, the quality of life in the PET/CT group was better than the enhanced CT group (P < 0.01). PFS, OS in the PET/CT group were longer than the enhanced CT group (P < 0.05). Detection rate of lesions via enhanced CT was lower than using PET/CT (P < 0.05). The gross tumor volume (GTV) was smaller in the PET/CT group, and the maximum uptake value (SUVmax) was smaller in the PET/CT group than the enhanced CT group. Conclusion It is more precisely to use PET/CT to delineate the radiation field, that can improve the accuracy and reduce partial radiation quantity. It will reduce adverse incidence degree and improve the prognosis, so as to extend PFS and OS.
陈杉 黄杰. PET/CT与增强CT对于NSCLC放疗靶区勾画的价值及患者生存函数分析[J]. 中国医药导报, 2018, 15(25): 132-136.
CHEN Shan HUANG Jie. The evaluation of PET/CT and enhanced CT in the target area of NSCLC radiotherapy and the analysis of patient survival function. 中国医药导报, 2018, 15(25): 132-136.