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目的对比分析PET/CT与MRI对肝脏转移瘤消融疗效评估,探讨两种检查方法在临床中的应用价值。方法搜集22例共32个转移灶行射频消融的肝脏转移瘤患者,均在1个月行全身PET/CT检查及MRI增强扫描,两种检查的间隔时间<1周,随访及病理证实后对两种检查方法进行对比分析。CHISS软件运行χ2检验结果及对比分析两种方法相关性,P<0.05为两种检查方法差异有统计学意义。结果经随访及病理证实治疗后活性病灶20个,完全失去活性病灶12个,MRI平扫加增强判断病灶有活性22例,完全失去活性病灶10例,PET/CT判断活性病灶14例,完全失去活性病灶18例。结论经过统计分析两种检查方法无明显差别。在目前临床中对肝脏转移瘤射频消融治疗后活性判断,由于PET/CT对RFA转移病灶摄取受影响的因素较多,其对病灶活性判断并不优于目前应用较广的MRI平扫加增强扫描。
Objective To comparatively evaluate the curative effect of PET / CT and MRI on the ablation of liver metastases, and discuss the clinical value of the two methods. Methods Twenty-two patients with metastatic liver metastases who underwent radiofrequency ablation were enrolled in the study. Totally, PET / CT and MRI enhanced CT scan were performed in one month. Comparison of two methods of inspection. CHISS software running χ2 test results and comparative analysis of the correlation between the two methods, P <0.05 for the two methods were statistically significant differences. Results After follow-up and pathological examination, there were 20 active lesions after treatment, 12 lesions were completely lost, 22 lesions were active under MRI scan and enhanced judgment, 10 were lost active lesions completely, and 14 were detected by PET / CT and were completely lost Active lesions in 18 cases. Conclusion After statistical analysis, there is no significant difference between the two methods. In the current clinical activity of liver metastases after radiofrequency ablation, as PET / CT on the uptake of RFA lesions affected by many factors, the judgment of lesion activity is not superior to the currently widely used MRI scan plus enhancement scanning.