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核医学是利用核素及其标记化合物进行临床诊断治疗疾病以及生物学研究的一门学科,是现代医学的重要组成部分,对医学的发展有巨大的影响,已成为举世公认的独立学科。核医学成像技术与超声成像技术、X线CT(X-CT)技术、核磁共振成像(MRI)技术是当今医学诊断的四大影像技术,在临床诊疗中均占据举足轻重的地位。超声、X-CT、MRI所获得的影像基本为解剖结构成像,图像清晰。而核医学成像是以核素示踪技术为基础,以组织吸收功能的差异为诊断依据,以放射性浓度为重建变量,将放射性核素标记的分子探针和显像剂、示踪剂引入机体后,探测并记录引入体内靶组织或靶器官的放射性示踪剂发射的γ射线,并以影像的方
Nuclear medicine is a discipline that makes use of radionuclides and its labeled compounds for clinical diagnosis and treatment of diseases and biological research. It is an important part of modern medicine and has a huge influence on the development of medicine. It has become a universally recognized independent discipline. Nuclear medicine imaging technology and ultrasound imaging technology, X-ray CT (X-CT) technology and magnetic resonance imaging (MRI) are the four major imaging technologies in medical diagnosis today. They all occupy a pivotal position in clinical diagnosis and treatment. Ultrasound, X-CT, MRI images obtained for the basic imaging anatomy, the image clear. Nuclear medicine imaging is based on the radionuclide tracer technology. Based on the difference in tissue absorption function, the radioactive concentration is taken as the reconstruction variable, the radionuclide labeled molecular probe and imaging agent and tracer are introduced into the body The gamma rays emitted by the radiotracer introduced into the target tissue or target organ in the body are then detected and recorded,