Schick F
Abteilung für Diagnostische und Interventionelle Radiologie, Sektion für Experimentelle Radiologie, Eberhard-Karls-Universität Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Deutschland,
Radiologe. 2013 May;53(5):441-53;quiz 454-6. doi: 10.1007/s00117-013-2486-5.
In comparison to roentgen-based radiological examination techniques, magnetic resonance imaging (MRI) provides a wide variety of tissue contrast. This can be utilized for better detection and characterization of pathological findings. The basis of image contrast in MRI is the chemical and physical properties of the hydrogen atoms in tissue, in particular in their chemical bonds in water and lipid molecules and in the environment in which the hydrogen-containing molecules are contained. This environment is mainly determined by the composition of substances, viscosity and temperature as well as the microscopic geometrical conditions in tissue. Part 1 of this advanced education article describes those contrast mechanisms which are most commonly utilized in static clinical standard examinations of various organ systems.
与基于X射线的放射检查技术相比，磁共振成像（MRI）能提供多种组织对比度。这可用于更好地检测和鉴别病理发现。MRI图像对比度的基础是组织中氢原子的化学和物理性质，特别是它们在水分子和脂质分子中的化学键以及含氢分子所处的环境。这种环境主要由物质组成、粘度、温度以及组织中的微观几何条件决定。这篇继续教育文章的第1部分描述了在各种器官系统的静态临床标准检查中最常用的那些对比机制。
