| 任阿红,张晓鹏,李洁,孙应实,唐磊,曹崑,欧阳涛,王天峰,陆爱萍.数字化乳腺X线摄影检出BI-RADS 3~5级微钙化病变的动态增强MR研究[J].中国医学影像技术,2009,25(1):89~92 |
| 数字化乳腺X线摄影检出BI-RADS 3~5级微钙化病变的动态增强MR研究 |
| Dynamic contrast-enhanced breast MRI for patients with BI-RADS 3-5 microcalcifications detected by digital mammography |
| 投稿时间：2008-04-01 修订日期：2008-12-05 |
| DOI： |
| 中文关键词: 乳腺肿瘤 数字化乳腺X线摄影 微钙化 磁共振成像 诊断 |
| 英文关键词:Breast neoplasm Digital mammography Microcalcifications Magnetic resonance imaging Diagnosis |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨DCE-MRI对数字化乳腺X线摄影检出BI-RADS 3-5级微钙化病变的诊断价值。方法 44例数字化乳腺X线摄影发现BI-RADS 3-5级微钙化的患者于活检前完成双乳DCE-MR检查,以术后病理诊断为金标准,分析BI-RADS3~5级微钙化病变的DCE-MRI特点。结果 病理证实良性微钙化病变13例,恶性微钙化病变31例。38.46% (5/13)良性单纯微钙化病变在DCE-MRI上无强化,93.33％(14/15)恶性微钙化伴肿块或局限性致密影病变在DCE-MRI上有明显强化,良恶性微钙化病变在DCE-MRI上早期增强率之间差异有显著统计学意义。DCE-MRI对微钙化病变诊断的敏感性和特异性分别为96.77％和92.31％。结论 良恶性微钙化病变的DCE-MRI表现有明显差异,DCE-MRI有助于微钙化病变的定性诊断。 |
| 英文摘要: |
| Objective To investigate the value of dynamic contrast-enhanced breast MRI (DCE-MRI) for patients with BI-RADS 3-5 microcalcifications detected on digital mammography. Methods Forty-four patients with mammographically detected BI-RADS category 3,4 or 5 microcalcifications were studied by DCE-MRI before biopsies. Results Pathologic diagnoses revealed 31 malignant lesions and 13 benign ones, and 38.46% (5/13) of benign microcalcifications alone didn't enhance on DCE-MRI, 93.33％ (14/15) of microcalcifications associate with mass or density significantly enhanced on DCE-MRI were dutal invasive carcinomas. Significant difference for initial enhancement was found between benign and malignant lesions. The sensitivity and specificity of DCE-MRI for BI-RADS 3-5 microcalcifications was 96.77% and 92.31%, respectively. Conclusion DCE-MRI is helpful to differentiate malignant from benign lesions associated with microcalcifications in breast. |
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