磁共振弥散加权成像与动态增强扫描联合应用对乳腺癌的诊断价值

目的探讨磁共振弥散加权成像（DWI）联合动态增强扫描对临床诊断乳腺癌的意义。方法对47例经病理学诊断为乳腺良恶性肿瘤的患者,首先进行DWI扫描,之后进行动态增强扫描。比较常规MRI以及LAVA动态增强扫描在乳腺良恶性肿瘤中不同的图像表现。结果乳腺良恶性肿瘤在常规MRI中均可表现为高、中、低信号,通过LAVA动态增强扫描,发现乳腺恶性肿瘤多为Ⅱ、Ⅲ型曲线,而乳腺良性肿瘤多为Ⅰ、Ⅱ型曲线（P〈0.01）。结论常规MRI在区分乳腺良恶性肿瘤中的作用较差,而使用LAVA动态增强扫描能够较为准确地区分乳腺癌良恶性肿瘤。

Diagnosis value of the combined application of diffusion-weighted MRI and dynamic contrast enhancement on breast cancer

Objective To discuss the significance of the combined application of diffusion-weighted imaging （DWI） and dynamic contrast enhancement on the diagnosis of breast cancer. Methods 47 cases of patients with benign and malignant mammary tumor diagnosed by pathology were adopted with DWI scan and dynamic contrast enhancement after. The different image of conventional MRI and LAVA dynamic contrast enhancement used in benign and malignant mammary tumor. Results Benign and malignant mammary tumor could manifest high, moderate and low signal in conventional MRI, through LAVA dynamic contrast enhancement found that malignant mammary tumor was mainly with curve type Ⅱ and type Ⅲ, and benign mammary tumor with curve type Ⅰ and thpe Ⅱ （P 0.01）. Conclusion Conventional MRI plays a poor role in the distinction of benign and malignant mammary tumor, but the LAVA dynamic contrast enhancement can accurately distinguish benign and malignant mammary tumor.