Kuhl Christiane K
Department of Radiology, University of Bonn, Sigmund-Freud-Str., 25, 53105 Bonn, Germany.
Magn Reson Imaging Clin N Am. 2007 Aug;15(3):315-20, vi. doi: 10.1016/j.mric.2007.08.003.
For breast MR imaging, a high spatial resolution is important to resolve morphologic and architectural details of even small tumors. At the same time, fast imaging is required to account for the transient enhancement of breast cancers. This is the "temporal versus spatial dilemma" that current breast MR imaging protocols face. This article provides a short introduction to the clinical use of breast MR imaging, presents the different concepts that exist for breast MR imaging in general, and explains the advantages and disadvantages of the respective approaches. The specific high-field-induced physical changes and their effects on breast imaging are explained. A short overview is given on the current level of evidence regarding breast MR imaging at higher magnetic fields.
对于乳腺磁共振成像而言,高空间分辨率对于分辨即使是小肿瘤的形态和结构细节非常重要。与此同时,需要快速成像以应对乳腺癌的短暂强化。这就是当前乳腺磁共振成像方案所面临的“时间与空间的两难困境”。本文简要介绍了乳腺磁共振成像的临床应用,概述了乳腺磁共振成像一般存在的不同概念,并解释了各自方法的优缺点。阐述了高场强引起的特定物理变化及其对乳腺成像的影响。简要概述了关于高磁场下乳腺磁共振成像的当前证据水平。