Knogler Thomas, Homolka Peter, Hoernig Mathias, Leithner Robert, Langs Georg, Waitzbauer Martin, Pinker Katja, Leitner Sabine, Helbich Thomas H
Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria.
Division of Molecular and Gender Imaging, Medical University of Vienna, Vienna, Austria.
Breast Care (Basel). 2017 Sep;12(4):212-216. doi: 10.1159/000478899. Epub 2017 Aug 17.
Contrast-enhanced (CE) magnetic resonance imaging (MRI) BI-RADS descriptors are used in the evaluation of contrast-enhanced dual-energy mammography (CEDEM) images of mass lesions and are assumed to be applicable.
Patients with suspicious mass lesions on mammography (BI-RADS 4 or 5) were included. CEDEM examinations were performed using a modified prototype unit. CE-MRI was performed using a high temporal and high spatial resolution imaging protocol. 2 blinded breast radiologists evaluated all images using criteria related to contrast enhancement intensity and morphology according to the BI-RADS lexicon (5th edition) in 2 sessions. Histopathology was used as the standard of reference.
11 patients with 5 benign and 6 malignant index lesions were included. Enhancement characteristics were similar in the malignant cases. Enhancement of the benign lesions was moderate on CEDEM and strong on MRI. Discrepancies in the BI-RADS descriptors did not influence the final BI-RADS score. Overall, the BI-RADS assessment was almost identical in all cases. 1 malignant lesion was rated BI-RADS 4 with CEDEM and BI-RADS 5 with MRI, and 1 benign was rated BI-RADS 2 and BI-RADS 1, respectively.
MRI BI-RADS descriptors of contrast-enhancing lesions can be applied for the morphologic analysis of mass lesions on CEDEM.
对比增强（CE）磁共振成像（MRI）的BI-RADS描述符用于评估肿块病变的对比增强双能乳腺摄影（CEDEM）图像，并假定其适用。
纳入乳腺摄影检查发现可疑肿块病变（BI-RADS 4或5）的患者。使用改良的原型设备进行CEDEM检查。采用高时间和高空间分辨率成像方案进行CE-MRI检查。两名盲法乳腺放射科医生分两个阶段根据BI-RADS词典（第5版）中与对比增强强度和形态相关的标准对所有图像进行评估。组织病理学用作参考标准。
纳入11例患者，有5个良性和6个恶性索引病变。恶性病例的增强特征相似。良性病变在CEDEM上增强程度中等，在MRI上增强程度强烈。BI-RADS描述符的差异不影响最终的BI-RADS评分。总体而言，所有病例的BI-RADS评估几乎相同。1个恶性病变在CEDEM上评为BI-RADS 4，在MRI上评为BI-RADS 5，1个良性病变分别评为BI-RADS 2和BI-RADS 1。
对比增强病变的MRI BI-RADS描述符可用于CEDEM上肿块病变的形态学分析。
