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目的:探究在直肠癌的诊断以及分期方面,CT与MRI技术的应用价值。方法:选取我院近年来经过病理检测,确诊为直肠癌的患者160例,随机分为两个实验组,其中一组采取CT成像方法,另一组患者采取MRI成像。并记录在不同的分期中CT及MRI的应用价值。CT诊断包含了常规CT平扫以及CT增强扫描,MRI诊断包括轴位DWI、T2W1冠状位以及矢状位、轴位T1WI、轴位T2WI的图像。结果:在直肠癌的诊断中,CT诊断的T分期与病理性T分期差异不大,其准确率为70.0%。MRI诊断的T分期和病理性T分期差异极小,其准确率为85.0%。CT诊断的N分期与病理性N分期差异不大,准确率为72.5%;MRI诊断的N分期与病理性N分期差异较小,其准确率为87.5%。CT诊断的T分期以及N分期的准确率与MRI诊断的T分期以及N分期的准确率之间差异均存在统计学意义(P<0.05)。结论:在直肠癌的术前诊断以及局部分期中,MRI诊断与CT诊断相比,有更高的诊断价值。
Objective: To explore the value of CT and MRI in the diagnosis and staging of rectal cancer. Methods: One hundred and sixty patients diagnosed as rectal cancer in our hospital in recent years were randomly divided into two experimental groups, one of which was CT imaging and the other was MRI. And recorded in different stages of CT and MRI value. CT diagnosis includes conventional CT scan and CT enhanced scan, MRI diagnosis including axial DWI, T2W1 coronal and sagittal, axial T1WI, axial T2WI images. Results: In the diagnosis of rectal cancer, the difference between T stage and pathological T stage in CT diagnosis was not significant, the accuracy was 70.0%. The difference between T-staging and pathological T-staging in MRI diagnosis was very small with an accuracy rate of 85.0%. The difference between N stage and pathologic N stage in CT diagnosis was not significant, the accuracy rate was 72.5%. The difference between N stage and pathologic N stage in MRI diagnosis was 87.5%. The differences of T stage, N stage accuracy and T stage and N stage accuracy of CT diagnosis were statistically significant (P <0.05). Conclusion: In the preoperative diagnosis and local staging of rectal cancer, MRI diagnosis has higher diagnostic value than CT diagnosis.