MRI-DWI联合MSCT三维重建在胃癌术前分期诊断中的应用价值

Application Value of MRI-DWI Combined with MSCT Three-dimensional Reconstruction in Preoperative Staging of Gastric Cancer

目的探讨磁共振弥散加权成像(magnetic resonance imaging-diffusion weighted imaging,MRI-DWI)联合多层螺旋CT(multisliecs helieal CT,MSCT)三维重建在胃癌患者术前分期诊断中的应用价值。方法选取96例胃癌患者为研究对象,所有患者术前均行MSCT三维重建和MRI-DWI检查,以手术病理检查结果为金标准,分析联合采用MRI-DWI检查和MSCT三维重建对胃癌术前分期的应用价值。结果依据病理结果分期:Ⅰ期14例、Ⅱ期31例、Ⅲ期34例、Ⅳ期17例;经Kappa一致性检验,MRI-DWI、MSCT三维重建单独检查对胃癌术前分期的诊断结果与手术病理结果的一致性均一般(Kappa=0.555、0.513,P均<0.001);MRI-DWI联合MSCT三维重建对胃癌术前分期的诊断结果与病理结果的一致性极好(Kappa=0.912,P<0.001);MRI-DWI联合MSCT三维重建对术前胃癌分期诊断的准确度高于MRI-DWI、MSCT三维重建单独检查,差异有统计学意义(P<0.05)。结论MSCT三维重建联合MRI-DWI检查在胃癌患者术前分期诊断中具有较高的应用价值。

Objective To explore the application value of magnetic resonance imaging-diffusion weighted imaging(MRI-DWI)combined with multisliecs helieal CT(MSCT)three-dimensional reconstruction in preoperative staging diagnosis of gastric cancer patients.Methods 96 gastric cancer patients were selected as the study subjects.All patients underwent MRI-DWI and MSCT three-dimensional reconstruction examinations.Based on the results of surgical pathology as the gold standard,the application value of preoperative MSCT three-dimensional reconstruction combined with MRI-DWI in gastric cancer staging was analyzed.Results According to pathological staging,there were 14 cases in stageⅠ,31 cases in stageⅡ,34 cases in stageⅢ,and 17 cases in stageⅣ.After Kappa consistency test,the preoperative staging results of MRI-DWI and MSCT three-dimensional reconstruction for gastric cancer were generally consistent with the surgical pathological results(Kappa=0.555,0.513,P<0.001).The combination of MRI-DWI and MSCT three-dimensional reconstruction in the diagnosis of gastric cancer showed excellent consistency between preoperative staging results and pathological results(Kappa=0.912,P<0.001).The accuracy of MRI-DWI combined with MSCT three-dimensional reconstruction in diagnosing preoperative gastric cancer staging was higher than that of MRI-DWI and MSCT three-dimensional reconstruction alone,with a statistical significant difference(P<0.05).Conclusion The use of MSCT three-dimensional reconstruction combined with MRI-DWI for preoperative diagnosis of gastric cancer staging in gastric cancer patients has high practical value,and the diagnostic results are highly consistent with pathological results.