Berger Nicole, Varga Zsuzsanna, Frauenfelder Thomas, Boss Andreas
Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, Switzerland.
Institute for Surgical Pathology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, Switzerland.
Magn Reson Imaging. 2017 May;38:1-5. doi: 10.1016/j.mri.2016.12.006. Epub 2016 Dec 12.
In magnetic resonance-guided breast vacuum biopsies, the contrast agent for targeting suspicious lesions can typically be applied only once during an intervention, due to the slow elimination of the gadolinium chelate from the extracellular fluid space. This study evaluated the feasibility of diffusion-weighted imaging (DWI) for lesion targeting in vacuum assisted magnetic resonance imaging (MRI) biopsies.
DWI may be used as an alternative to dynamic contrast-enhanced MRI with the advantage of reproducibility. However, the targeted lesion requires the characteristics of a mass-like lesion, substantial diffusion restriction, and a minimum size of approximately 1cm.
在磁共振引导下的乳腺真空活检中，由于钆螯合物从细胞外液空间清除缓慢，靶向可疑病变的造影剂通常在一次干预过程中只能应用一次。本研究评估了扩散加权成像（DWI）在真空辅助磁共振成像（MRI）活检中用于病变靶向的可行性。
DWI可作为动态对比增强MRI的替代方法，具有可重复性的优点。然而，靶向病变需要具有类肿块病变的特征、明显的扩散受限以及至少约1cm的最小尺寸。
