乳腺病变动态增强MRI、乳腺摄影片、超声、病理对照研究

目的比较动态增强MRI、乳腺摄影片、超声对乳腺病变,尤其是乳腺癌的诊断价值。方法对30例乳腺病变的61个病灶的三种影像学检查手段与病理结果相对照,计算每种检查方法的灵敏度、特异度等指标并两两比较。结果超声、乳腺X线摄影、动态增强MRI对61个乳腺病灶的诊断灵敏度、特异度分别为:41.2%、84.6%,35.3%、87.2%,94.1%、94.9%;超声、乳腺X线摄影联合检查的灵敏度、特异度为47.6%、85.4%。动态增强MRI与乳腺摄影诊断正确率的差别有统计学意义(χ2=32.378,P=0.000);乳腺摄影和超声间的差别无统计学意义(χ2=0.569,P=0.451)。结论对乳腺病变的检查,动态增强MRI较X线摄影和超声的诊断效果更好。

Comparative study of dynamic MRI, mammography, and ultrasonic in the diagnosis of breast lesions

Objective: To evaluate the different diagnostic value in breast lesions, especially breast cancer, by dynamic contrast enhanced MR imaging, mammography, and ultrasonic. Materials and Methods: Thirty patients with 61 breast lesions were studied by dynamic contrast MRI, mammography, and ultrasonic independently before operation. The diagnostic sensitivity and specificity of each imaging modality were calculated independently and compared among each modality. Results: The diagnostic sensitivity and specificity of ultrasound, mammography and contrast enhanced MR imaging were 41.2 %, 84.6 %; 35.3 %, 87.2 %; and 94.1 %, 94.9 %, respectively. There was significant difference on diagnostic accuracy in MR and mammography (χ2=32.378, P=0.000). Ultrasound and mammography showed no diagnostic difference (χ2=0.569, P =0.451). Conclusion: Dynamic contrast enhanced MRI is a more effective diagnostic method in the diagnosis of breast diseases than mammography and ultrasonic.