磁共振扩散加权成像对于盆腔恶性肿瘤区域淋巴结侵犯的术前评估与病理对照

Evaluation of the Involved Lymph Node in Patients with Pelvic Malignant Tumor Using Diffusion Weighted Imaging Compared with Pathologic Results

目的:探讨DWI对于盆腔恶性肿瘤区域淋巴结侵犯的诊断价值。方法收集手术病理证实盆腔恶性肿瘤患者114例,均于术前1w行DWI检查,根据病理学结果,将良、恶性淋巴结的ADC值进行对照,采用检验进行统计学分析。结果在DWI序列,恶性淋巴结呈明显高信号,恶性淋巴结平均ADC值为(0.8816±0.1217)×10-3mm2/s,良性淋巴结ADC值平均为(0.9913±0.1971)×10-3mm2/s,恶性淋巴结平均ADC值明显小于良性淋巴结(P<0.05),两者之间差异有统计学意义。结论DWI可以提高淋巴结的检出,ADC值的测定可以对盆腔恶性肿瘤区域转移淋巴结进行鉴别。

Objective To evaluate the value of dif usion weighted imaging in the involved lymph node in patients with pelvic malignant tumor.Methods Col ected after surgery for pelvic malignant tumor in 114 patients with pathological y confirmed.Al patients accepted DWI examination before operation in a week.ADC values were compared between benign lymph nodes and malignant lymph nodes.Results Malignant lymph nodes showed markedly high signal on DWI sequence.ADC values of benign lymph nodes were(0.9913±0.1971)í10-3mm2/s.ADC values of malignant lymph nodes were(0.8816±0.1217)í10-3mm2/s.The dif erence of ADC values in benign lymph nodes and malignant lymph nodes were statistical y significant(P<0.05).Conclusion DWI can improve the detection of lymph node.ADC values can identify lymph nodes and malignant lymph nodes in patients with pelvic malignant tumor.