3.0T磁共振平扫联合扩散加权成像在原发直肠癌的诊断与术前T分期的临床价值

The clinical value of the diagnosis and preoperative T staging by 3.0T Magnetic resonance scanning combined diffusion weighted imaging in the primary colorectal cancer

目的:通过术前分期与术后病理结果对照,探讨3.0T磁共振平扫联合扩散加权成像在原发直肠癌的临床价值。方法:搜集我院2015年10月—2017年5月经病理证实为直肠癌的患者且术前行MRI检查患者共73例,分别将MRI平扫成像和MRI平扫联合扩散加权成像对直肠癌的T分期进行判断,并与术后病理诊断结果对照。结果:MRI平扫成像准确判断T分期51例,总准确率为69.86%,MRI平扫联合DWI成像准确判断T分期68例,总准确率为93.15%,一致性优与MRI平扫成像(kappa值0.890vs0.589,P<0.05)。结论:MRI平扫联合DWI成像在原发直肠癌术前T分期判断中优势明显,能为临床提供具有参考意义的诊断。

Objective The clinical value on 3.0 T MR plain scan combined with diffusion weighted imaging in primary colorectal cancer was discussed by analyzing pathological results of preoperative and postoperative stage. Methods A total of 73 cases with rectal cancer confirmed from October 2015 to May 2017 were enrolled in our hospital. T Staging of rectal cancer was estimated aiming at MRI plain imaging and MRI plain diffusion weighted imaging, and the results were contrasted with that of postoperative pathological diagnosis. Results The total accuracy rate on MRI plain imaging used to accurately determine the T staging was of 69.86% with 51 cases. Total accuracy rate on MRI plain scan combined with DWI imaging used to accurately determine the T staging was 93.15% with 68 cases, which was better than MRI plain imaging in the consistency(kappa Value 0.890 vs0.589, P <0.05). Conclusion MRI plain scan combined with DWI imaging in the judgment of T staging of preoperative stage on primary rectal cancer had obvious advantage and the results can provide a reference for the clinical diagnosis.