PET/CT显像在结直肠癌术前TNM分期中的临床应用价值

The diagnostic value of PET/CT imagine in preoperative TNM staging of colorectal cancer

目的:探讨PET/CT显像在结直肠癌患者术前TNM分期中的临床应用价值。方法:回顾性分析本院2014—2017年期间56例临床诊断原发性结直肠癌患者,术前1周内均行PET/CT检查,将PET/CT检查结果与术后病理对照行配对t检验分析。结果:PET/CT诊断结直肠癌原发灶的灵敏度为96.42%,SUVmax为11.86±5.84;PET/CT对N分期的灵敏度为87.5%,特异性为75%;PET/CT诊断远处转移灶(M分期)的灵敏度为100%,特异性为100%。结论:18F-FDG PET/CT对结直肠癌原发灶诊断及N、M分期与术后病理对照具有较好的一致性。

Objective To investigate the clinical value of PET/CT imaging in preoperative TNM staging in patients with colorectal cancer.Methods A retrospective analysis of 56 patients with primary colorectal cancer during the period from 2014 to 2017,PET/CT examinations were performed in the week before operation.The results of PET/CT examination and postoperative pathological examination were analyzed by paired t-test.Results The sensitivity of PET/CT for primary colorectal cancer was 96.42%,and SUVmax was 11.86±5.84.PET/CT has a sensitivity of 87.5% for N stage and a specificity of 75%.The sensitivity of PET/CT for diagnosis of distant metastases(M staging)is 100%and specificity is 100%.Conclusion 18 F-FDG PET/CT The diagnosis of primary colorectal cancer and the N,M staging have a good consistency with postoperative pathological control.