betway必威登陆网址 (betway.com )学报››2022,Vol. 43››Issue (5): 344-349.DOI:10.3969/j.issn.2097-0005.2022.05.005

• 临床研究 •上一篇下一篇

结直肠癌18F-FDG PET/CT代谢参数与临床病理特征的相关性

李敏1(), 张春燕2, 刘芳菲2, 吕荣彬2, 韩明山2, 刘树永2()

  1. 1.泰安市中心医院,医学影像科,(PET-CT室),山东 泰安 271000
    2.泰安市中心医院,医学影像中心,(PET-CT室),山东 泰安 271000
  • 收稿日期:2021-12-15出版日期:2022-05-25发布日期:2022-06-09
  • 通讯作者:刘树永
  • 作者简介:李敏,硕士,副主任医师,研究方向:影像诊断,E-mail:li_min2021@163.com

Correlation analysis of18F-FDG PET/CT metabolic parameters with clinical pathological characteristics in colorectal cancer

Min LI1(), Chunyan ZHANG2, Fangfei LIU2, Rongbin LV2, Mingshan HAN2, Shuyong LIU2()

  1. 1.Department of Medical Imaging, (Department of PET-CT),Taian City Central Hospital,Taian 271000,China
    2.Medical Imaging Center, (Department of PET-CT),Taian City Central Hospital,Taian 271000,China
  • Received:2021-12-15Online:2022-05-25Published:2022-06-09
  • Contact:Shuyong LIU

摘要: 目的

探讨结直肠癌18F-FDG PET/CT代谢参数与临床病理特征的相关性。

方法

回顾性收集了43例术前进行过18氟-氟脱氧葡萄糖(18F-FDG)PET-CT检查的结直肠癌患者的临床病理资料,测量结直肠癌原发灶的最大标准化摄取值(SUVmax)、平均标准化摄取值(SUVmean)、肿瘤代谢体积(tumor metabolism volume,MTV)、糖酵解总量(total glycolysis,TLG)。比较不同临床病理特征分组间的代谢参数差异有无统计学意义,并分析各代谢参数与临床病理特征的相关性,绘制诊断效能受试者工作特征(receiver operator characteristic, ROC)曲线评估PET/CT各代谢参数评估T分期的诊断效能。

结果

SUVmax、SUVmean、MTV和TLG在肿瘤最大径、T分期分组间差异有统计学意义(P< 0.05);SUVmax、SUVmean在分化程度分组间差异有统计学意义(P< 0.05);SUVmax、SUVmean、MTV和TLG与肿瘤最大径、T分期呈正相关(P< 0.05);SUVmax、SUVmean和分化程度呈负相关(P< 0.05);ROC曲线显示,在鉴别结直肠癌患者的T3和T4期时,SUVmax、SUVmean、MTV和TLG的曲线下面积(area under curve,AUC)阈值分别为0.734、0.696、0.780、0.829及15.05、0.90、9.93、79.70;SUVmax、SUVmean、MTV和TLG以各自阈值评估结直肠癌T3、T4分期的敏感性及特异性分别为83.3%、69.6%;83.3%、65.2%;91.3%、61.1%及91.3%、61.1%。

结论

18F-FDG PET/CT的半定量代谢参数SUVmax、SUVmean、MTV和TLG与结直肠癌原发灶肿瘤大小、分化程度、T分期等具有一定相关性,在一定程度上反映肿瘤的部分病理特征,有助于判断肿瘤的特性及恶性程度。

关键词:18氟-氟脱氧葡萄糖PET/CT,结直肠癌,糖酵解总量,癌胚抗原

Abstract: Objective

To explore the correlation between18F-FDG PET/CT metabolic parameters and clinical pathological characteristics of colorectal cancer.

Methods

The clinicopathological data of 43 patients with colorectal cancer who underwent preoperative18F-FDG PET-CT examination were retrospectively collected, and the maximum standardized intake (SUVmax), average standardized intake (SUVmean), tumor metabolism volume (MTV), and sugar fermentation (TLG)of colorectal cancer were collected. The differences of metabolic parameters between different clinicopathological characteristics were compared, and the correlation between metabolic parameters and the clinicopathological characteristics was analyzed.ROC curve was drawn to evaluate the diagnostic efficacy of metabolic parameters of PET/CT in evaluating T stage.

Results

There were significant differences in SUVmax, SUVmean, MTV and TLG between tumor maximum diameter and T stage (P< 0.05);The difference of SUVmaxand SUVmeanin differentiation degree was statistically significant (P< 0.05); SUVmax, SUVmean, MTV and TLG were positively correlated with maximum tumor diameter and T stage (P< 0.05);SUVmaxand SUVmeanwere negatively correlated with the degree of differentiation (P< 0.05);ROC curve showed that the area under curve of SUVmax, SUVmean, MTV and TLG in differentiating T3 and T4 of colorectal cancer patients AUC thresholds were 0.734, 0.696, 0.78, 0.829 and 15.05, 0.90, 9.93, 79.70, respectively. The sensitivity and specificity of SUVmax, SUVmean, MTV and TLG for T3 and T4 stages of colorectal cancer were 83.3%, 69.6%, 83.3%, 65.2%, 91.3%, 61.1% and 91.3%, 61.1%, respectively.

Conclusion

The semi quantitative metabolic parameters SUVmax, SUVmean, MTV and TLG of18F-FDG PET/CT have a certain correlation with the size, differentiation and T stage of primary colorectal cancer, reflect some pathological characteristics of the tumor to a certain extent, and help to judge the characteristics and malignancy of the tumor.

Key words:18F-FDG PET/CT,colorectal cancer,total glycolysis,CEA