MRI联合CTVE在结直肠癌术前分期诊断中的应用价值分析

目的分析磁共振(MRI)联合CT仿真内窥镜(CTVE)检查在结直肠癌术前T分期诊断中的应用价值。方法回顾性分析2017年12月~2019年6月于新疆喀什地区第一人民医院确诊的60例结直肠癌患者,均行MRI及CTVE检查,且于检查后2周内接受手术治疗,以肠镜取样病理活检为金标准,将MRI检查、CTVE检查及MRI联合CTVE检查结果分别与病理结果对比分析。结果 MRI检查T分期与病理一致43例,17例不一致,T分期诊断准确率为71.67%;CTVE检查T分期与病理一致50例,10例不一致,T分期诊断准确率为83.33%;MRI联合CTVE检查T分期与病理一致57例,3例不一致,T分期诊断准确率为95.00%;MRI联合CTVE检查T分期的诊断准确率显著高于MRI、CTVE单一检查,差异有统计学意义(χ^2=11.760,3.333,P<0.05)。结论结直肠癌患者术前MRI联合CTVE检查是一种准确度高的影像学诊断方法,可准确评估术前T分期,指导治疗方案的选择。

Application Value of MRI Combined with CTVE in Preoperative Staging Diagnosis of Colorectal Cancer

Objective To analyze the application value of magnetic resonance imaging(MRI) combined with CT virtual endoscopy(CTVE) in the preoperative T stage diagnosis of colorectal cancer. Methods A retrospective analysis was performed on 60 patients with colorectal cancer which confirmed by pathology from December 2017 to June 2019. All of them underwent MRI and CTVE, and given surgery treatment with in 2 weeks after the examination. Taking the biopsy of colonoscopy as the pathological golden standard, the results of MRI, CTVE and their combination were compared with pathological results. Results There were 43 cases with T stage examined by MRI consistent with pathology, and 17 cases were inconsistent. The diagnosis accuracy rate of T stage was 71.67%. There were 50 cases with T stage examined by CTVE consistent with it by pathology, and 10 cases were inconsistent. The diagnosis accuracy rate of T stage was 83.33%. There were 57 cases with T stage examined by their combination consistent with it by pathology, and 2 cases were inconsistent. The diagnosis accuracy rate of T stage was 95.00%. The diagnostic accuracy of MRI combined with CTVE for the diagnosis of T stage was significantly higher than that of MRI and CTVE(χ^2=11.760), 3.333,(P<0.05). Conclusion Preoperative MRI combined with CTVE is a highly accurate imaging diagnostic method for colorectal cancer patients, which can accurately evaluate the preoperative T stage and guide the choice of treatment plan.