MRI检测直肠癌的价值

The Value of MRI in Detecting Rectal Cancer

目的分析直肠癌患者使用MRI的诊断效果。方法随机抽取2021年3月至2023年3月在信阳市人民医院就诊的65例疑似直肠癌患者,均开展MRI、增强CT、手术病理诊断,以手术病理诊断结果作为金标准,对比MRI、增强CT的诊断结果。结果手术病理诊断阳性60例、阴性5例;MRI检测敏感度(95.00%)、准确度(93.85%)高于增强CT(80.00%、76.92%),差异有统计学意义(P<0.05);MRI与增强CT检测特异度比较,差异无统计学意义(P>0.05)。MRI组诊断分期符合率(91.67%)高于增强CT组(65.00%),差异有统计学意义(P<0.05)。手术病理诊断淋巴结转移35例;MRI结果:转移32例,反应性增大3例;增强CT结果,转移25例,反应性增大10例。MRI检测结果为转移32例,反应性增大3例;增强CT结果为转移25例,反应性增大10例。MRI检测淋巴结转移符合率(91.43%)高于增强CT(71.43%),差异有统计学意义(P<0.05)。结论使用MRI检测直肠癌诊断效能较优,能为临床诊断直肠癌分期提供参考依据。

Objective To analyze the diagnostic efficacy of MRI in patients with rectal cancer.Methods A total of 65 patients with suspected rectal cancer who were treated at Xinyang People's Hospital from March 2021 to March 2023 were randomly selected.All patients underwent MRI,enhanced CT,and surgical pathology diagnosis,with the surgical pathology diagnosis results used as the gold standard.The diagnostic results of MRI and enhanced CT were compared.Results Of the 65 patients,60 were positive and 5 were negative based on surgical pathology diagnosis.The sensitivity(95.00%)and accuracy(93.85%)of MRI were higher than those of enhanced CT(80.00%and 76.92%),with statistically significant differences(P<0.05).There was no significant difference in specificity between MRI and enhanced CT(P>0.05).The diagnostic staging accuracy rate of the MRI group(91.67%)was higher than that of the enhanced CT group(65.00%),with statistically significant differences(P<0.05).Among the 35 cases of lymph node metastasis diagnosed by surgical pathology,MRI detected 32 metastases and 3 reactive enlargements,while enhanced CT detected 25 metastases and 10 reactive enlargements.The accuracy rate of MRI for detecting lymph node metastasis(91.43%)was higher than that of enhanced CT(71.43%),with statistically significant differences(P<0.05).Conclusion MRI has superior diagnostic efficacy in detecting rectal cancer and provides valuable reference for clinical staging of rectal cancer.