MRI扩散加权成像在前列腺良恶性结节诊断中的应用

Application of MRI diffusion weighted imaging in diagnosis of benign and malignant prostate nodules

目的:研究MRI扩散加权成像在前列腺良恶性结节诊断中的价值。方法:选取我院2016年5月至2018年3月收治的前列腺结节患者200例为对象,进行常规MRI扫描和扩散加权成像(Diffusion weighted imaging,DWI)后,收集整理检查结果,分析两种影像学方法的诊断准确率等。结果:MRI平扫诊断前列腺增生和前列腺癌的准确率均低于DWI的诊断准确率(P<0.05)。前列腺增生患者的表观扩散系数(Apparent diffusion coefficient,ADC)值明显高于前列腺癌患者的ADC值(P<0.05)。在不同b值下的ADC值方面,前列腺癌均明显低于前列腺增生(P<0.05)。结论:MRI扩散加权成像技术在前列腺良恶性结节诊断中应用价值高,能鉴别诊断结节的良恶性,有助于指导术前分期、治疗等,值得推广。

Objective:To investigate the value of diffusion weighted imaging(MRI)in the diagnosis of benign and malignant prostate nodules.Methods:A total of 200 patients with prostate nodules admitted to our hospital from May 2016 to March 2018 were enrolled and underwent routine MRI scanning and diffusion weighted imaging(DWI).The diagnostic accuracy of the two imaging methods was analyzed.Results:The accuracy rate of MRI scan in the diagnosis of benign prostatic hyperplasia and prostate cancer was lower than that of DWI(P<0.05).The ADC value of patients with benign prostatic hyperplasia was significantly higher than that of prostate cancer patients(P<0.05).And the ADC value at different b values:prostate cancer was significantly lower than benign prostatic hyperplasia(P<0.05).Conclusion:Diffusion-weighted MRI has a high value in the diagnosis of benign and malignant prostate nodules.It can differentiate benign and malignant prostate nodules and is helpful to guide the preoperative staging and treatment.