Department of Radiology, Seoul National University Hospital, Seoul, Korea.
Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Korean J Radiol. 2021 Jan;22(1):9-22. doi: 10.3348/kjr.2020.0093. Epub 2020 Aug 28.
Diffusion-weighted (DW) magnetic resonance imaging (MRI) is a rapid, unenhanced imaging technique that measures the motion of water molecules within tissues and provides information regarding the cell density and tissue microstructure. DW MRI has demonstrated the potential to improve the specificity of breast MRI, facilitate the evaluation of tumor response to neoadjuvant chemotherapy and can be employed in unenhanced MRI screening. However, standardization of the acquisition and interpretation of DW MRI is challenging. Recently, the European Society of Breast Radiology issued a consensus statement, which described the acquisition parameters and interpretation of DW MRI. The current article describes the basic principles, standardized acquisition protocols and interpretation guidelines, and the clinical applications of DW MRI in breast imaging.
弥散加权（DW）磁共振成像（MRI）是一种快速、无需增强的成像技术，可测量组织内水分子的运动，提供有关细胞密度和组织微结构的信息。DW MRI 已经证明有潜力提高乳腺 MRI 的特异性，有助于评估肿瘤对新辅助化疗的反应，并且可以用于增强 MRI 筛查。然而，DW MRI 的采集和解释的标准化具有挑战性。最近，欧洲乳腺放射学会发布了一份共识声明，描述了 DW MRI 的采集参数和解读。本文介绍了 DW MRI 在乳腺成像中的基本原理、标准化采集方案和解读指南以及临床应用。
