Schick F
Sektion für Experimentelle Radiologie, Abteilung für Diagnostische und Interventionelle Radiologie, Eberhard Karls Universität Tübingen, Hoppe-Seyler-Str. 3, 72076 Tübingen, Deutschland.
Radiologe. 2013 Aug;53(8):709-21; quiz 722. doi: 10.1007/s00117-013-2534-1.
The second part of this educational article focuses on sequence techniques in magnetic resonance imaging (MRI) and on suitable parameter sets for different contrast weightings. The content is based on the recently published part 1 of this educational article providing a survey on tissue properties relevant for most important contrast mechanisms. Characteristics of contrast weightings are presented in exemplary images recorded from healthy volunteers. Typical clinical applications of the most commonly used contrast weightings are described and discussed. Sequences for the following contrast weightings are included: proton density (density of hydrogen in small mobile molecules), relaxation times T1 and T2, chemical shift (water and fat), effects of magnetic susceptibility, restricted diffusion of water molecules and magnetization transfer between macromolecules and water molecules.
本教育文章的第二部分重点介绍磁共振成像（MRI）中的序列技术以及适用于不同对比加权的参数集。内容基于本教育文章最近发表的第一部分，该部分概述了与最重要对比机制相关的组织特性。通过从健康志愿者记录的示例图像展示了对比加权的特征。描述并讨论了最常用对比加权的典型临床应用。包括以下对比加权的序列：质子密度（小分子中氢的密度）、弛豫时间T1和T2、化学位移（水和脂肪）、磁化率效应、水分子的受限扩散以及大分子与水分子之间的磁化传递。
