基于飞行时间技术的PET发展历史与现状
History and Current Status of PET Devolopment based on Time of Flight
-
摘要: 简要介绍了基于飞行时间(Time of Flight,简称TOF)技术的正电子发射断层扫描成像(Posi-tron Emission Tomography,简称PET)的基本原理,回顾了TOF-PET成像设备的发展历史,讨论了影响TOF-PET时间分辨率的主要因素,并对TOF-PET给图像重建技术带来的挑战进行了分析。最后,重点介绍了TOF-PET技术所带来的优势,使用TOF技术可以有效地改善图像质量,并且为临床诊断和临床前研究带来便利。Abstract: The principle of time of flight (TOF) positron emission tomography (PET) and a brief review of the history of TOF-PET are introduced. The factors influencing the time resolution of a TOF-PET scanner are presented, especially focus on the intrinsic properties of scintillators and front-end electronics. Challen- ges and achievements of the structure of data organization and image reconstruction are reviewed. Finally, the benefits of TOF-PET on image quality improvement and tumor detection are emphasized.
-
-
计量
- 文章访问数: 1012
- HTML全文浏览数: 177
- PDF下载数: 0
- 施引文献: 0