摘要
1导言正电子发射断层图（positronemissiontomogfaphy，PET）是电子计算机图像处理、核医学、微量放射化学合成、生物物理学的示H踪动力学模型等多学科综合产生的医学成像新技术。目前在理论研究和临床诊断方面，已有广泛的应用l'－'l。PET是用示踪核素标记的化合物注入人...
Positron emission tomography(PET)is a new functional image technique that permits boththe tomographic delineation of cerebral structures and the measurement of the local tissue concentrations ofinjected radioactive tracers.PET has been widely used for quantitative assessment of regional bloodflow,metabolic rates,and various neurotransmitter receptor functions in the brain,myocardium and varioustumor tissues.In this paper,the principle of the PET technique was introduced including the coincidencedetection,the image reconstruction,the labeled compounds,and the tracer kinetic models.It is concluded thatPET will give a great impact to the future advancements of life science and clinical diagnosis in the 21century.
出处
《基础医学与临床》
CSCD
1999年第4期1-5,共5页
Basic and Clinical Medicine
基金
国家自然科学基金
关键词
PET
正电子发射
断层图
PET labeled compounds image reconstruction trace kinetic model receptor imaging
