DWI对卵巢实性肿瘤的诊断价值

Differential Diagnosis Value of DWI in the Solid Ovarian Tumors

目的探讨磁共振扩散加权成像(DWI)对卵巢良恶性实性肿瘤的鉴别诊断价值。方法回顾性分析经病理证实的41例卵巢肿瘤的术前MRI及DWI表现(肿瘤的部位、数目、形态、信号特点),测量肿瘤大小、ADC值,通过独立样本t检验比较良恶性肿瘤的大小及ADC值有无统计学差异。结果 41例51个卵巢肿瘤,其中良性23个,恶性28个,肿瘤大小、ADC值无统计学差异(P值分别为0.356,0.082)。结论ADC值对卵巢良恶性实性肿瘤的鉴别诊断无价值,但DWI信号特点结合常规MRI检查,有可能提供有价值的信息。

Objective To explore the value of diffusion-weighted MRI in differentiating ovarian solid tumors. Methods 41 patients with pathology proven ovarian solid tumors, who had conventional MRI and DW1 scanning preoperatively. The basic MP, features（location, amount and shape）, signal intensity characteristics of conventional MRI and DWI were compared. The size and ADC values of all ovarian tunlors were calculated. Student＇s t test to compare the difference between benign ovarian tumors and malignant ones in size and ADC value.Results Of this group, there were 51 ovarian tumors（23 benign and 28 malignant masses）. It is no statistical significance between the size. ADC values of the benign and malignant ovarian tumors （P=0.356,0.082）. Conclusion The differeuce between ADC values of the benign and malignant ovarian tumors was no statistical significance. DWI combined with the conventional MRI is probable to provide the useful information.