彩色多普勒超声与MRI对乳腺癌的诊断价值比较

目的：探讨彩色多普勒超声（US）与磁共振成像（MRI）对乳腺癌的诊断价值;方法：选择本院就诊的乳腺肿块患者65例,采用US和MRI方法进行影像学诊断,记录诊断结果,并参照病理诊断结果分别计算US、MRI、US＋MRI诊断乳腺癌的敏感度、特异性、准确度等,并计算ROC曲线下面积。结果：US、MRI、US＋MRI乳腺癌检出率分别为80.00%、93.33%、95.56%,其中US＋MRI的检出率显著高于US（P〈0.05）。MRI＋US对乳腺癌诊断的敏感度、准确度、阴性预测值分别为95.56%、92.31%、93.47%,显著高于US（P〈0.05）。单独采用US诊断乳腺癌的误诊率和漏诊率较高,分别为35.00%和20.00%。US、MRI、US＋MRI对乳腺癌诊断的ROC曲线下面积分别为0.72、0.90、0.93。结论：超声联合MRI可有效提高诊断准确度,减少漏诊、误诊,其应用于乳腺癌监测可做到早期发现、早期诊断。

Comparison of Color Doppler Ultrasound and MRI in Diagnosis of Breast Cancer

Objective： To investigate the comparison of color doppler ultrasound and magnetic resonance imaging（ MRI） in diagnosing breast cancer. Method： 65 patients with breast lumps were collected. Diagnostic imaging methods of US and MRI were taken and in accordance with pathological results,diagnostic results of the sensitivity,specificity,accuracy,etc. were calculated for US,MRI,US ＋ MRI in diagnosis of breast cancer,and the area under the ROC curve was also calculated. Result： The detection rates of US,MRI,US＋ MRI for breast cancer were 80.00%,93.33%,95.56%,in which detection rate of US ＋ MRI was significantly higher than US（ P 0.05）. Sensitivity,accuracy and negative predictive values of MRI ＋ US for diagnosis of breast cancer were 95.56%,92.31%,93.47%,which was significantly higher than by US method（ P 0.05）. Misdiagnosis and missed diagnosis rate by US for breast cancer was higher,which was 35.00%and 20.00%,respectively. Area under the ROC curve by US,MRI,US ＋ MRI in diagnosis of breast cancer was 0.72,0.90,0.93. Conclusion： Ultrasound combined MRI could effectively improve diagnostic accuracy and reduce misdiagnosis. Monitoring can be applied to achieve early detection of breast cancer and early diagnosis.