摘要
目的探讨MR动态增强扫描对乳腺导管内癌(DCIS)的诊断价值。资料与方法回顾性分析38例经病理学证实的DCIS的MR动态增强表现,并与病理学检查结果进行对照研究。结果38例病理诊断为粉刺型25例,乳头型4例、实性型7例、筛状型2例。5例DCIS在注射MR对比剂后无强化;粉刺型DCIS多表现为管状强化(64%),而非粉刺型DCIS表现为均匀一致强化或延迟环状强化。4例病灶的强化曲线为流入型,18例为平台型,11例为流出型。结论动态增强扫描MR在DCIS诊断中具有重要作用,但需结合钼靶摄影结果。
Objective To evaluate the value of dynamiccontrast-enhanced MR imaging in the diagnosis of ductal carcinoma in situ. Materials and Methods Retrospective review was performed in 38 DCIS lesions which were confirmed by histopathologic findings. The characteristics of dynamic contrast-enhanced MR imaging were analyzed correlating with histologic findings. Results Histologic findings in 38 lesions were comedo type in twenty five （65.8%）, papillary type in four （10.5%）, solid type in seven （18.4%）, cribiform type in two （5.3%）. On MRI, 5 lesions didnt show any enhancement after contrast agent injection, whereas 33 lesions showed enhancement （86.8%）. Among the comedo-type DCIS, ductal enhancement were observed in 16 lesions. And homogeneous enhancement and delayed rim enhancement were observed in most of non-comedo DCIS. Signal intensity time curves of 4 lesions were wash-in, 18 lesions were plateau, and 11 lesions were wash-out. Conclusion Dynamic contrast-enhanced MR imaging can provide valuable information for the diagnosis of DCIS, but combination with mammography is necessary.
出处
《临床放射学杂志》
CSCD
北大核心
2008年第4期458-461,共4页
Journal of Clinical Radiology
关键词
乳腺
导管内癌
动态对比增强
磁共振成像
Breast Ductal
carcinoma in situ
Dynamic contrast enhanced
Magnetic resonance imaging
