Samset Eigil
University of Oslo, Center of Mathematics for Applications, The Interventional Centre, Oslo, Norway.
Minim Invasive Ther Allied Technol. 2006;15(1):36-41. doi: 10.1080/13645700500491005.
MRI is a unique tool for minimally invasive thermal ablation in that it can provide both targeting, monitoring and control during the procedure. Monitoring is achieved by using MRI temperature mapping. In this review the relevant physics is explained as a background to the state-of-the-art methods for computing temperature maps as well as the more cutting edge methods. The review covers both methods to monitor heating and cooling of tissue and explains temperature mapping using Proton Resonance Frequency shift, T1 mapping, diffusion mapping, R2* mapping and thermal models.
磁共振成像(MRI)是微创热消融的一种独特工具,因为它在手术过程中既能提供靶向定位,又能进行监测和控制。监测是通过使用MRI温度映射来实现的。在本综述中,相关物理原理被作为计算温度图的先进方法以及更前沿方法的背景进行解释。该综述涵盖了监测组织加热和冷却的方法,并解释了使用质子共振频率偏移、T1映射、扩散映射、R2*映射和热模型进行温度映射的方法。