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心血管疾病已成为全球范围内危害人类健康的公共卫生问题[1]。随着我国人口老龄化和城镇化速度的加快,心血管疾病的发病率和病死率呈现逐年升高趋势。统计数据显示,2019年我国心血管疾病患者数约为 3.3 亿,心血管疾病在我国已成为首要疾病死因,在农村和城市中因心血管疾病死亡的人数分别占所有因病死亡人数的46.74%和44.26%,且该数据仍呈上升趋势[2]。早期诊断和治疗可以有效降低心血管疾病患者的病死率。研究结果表明,心脏神经系统功能障碍在心血管疾病的病理和生理过程中起着重要作用,其与急慢性心肌缺血、心力衰竭等常见心脏疾病的早期发病机制及预后密切相关[3-4]。许多心脏疾病患者神经系统的改变往往发生在临床症状出现之前。传统的影像检查技术难以观察到自主神经系统的变化,而核素显像技术能够非常灵敏地反映心脏自主神经系统的变化[5]。我们就心脏自主神经系统进行概述,并综述了几种11C标记的心脏交感神经受体显像剂的研究新进展。
11C标记的心脏交感神经受体显像剂的研究进展
Research progress of 11C labeled cardiac sympathetic nerve receptor imaging agents
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摘要: 自主神经系统在调节心血管功能方面起着至关重要的作用,完整的神经支配是心血管功能正常发挥的基础。许多心脏疾病在出现临床症状之前已经出现了神经系统的改变,放射性核素标记的神经递质类似物PET显像可对此进行评估,其可以灵敏地反映心脏自主神经功能的完整性、神经元的分泌功能及活性,以便对心脏疾病进行早期诊断和及时干预。近年来11C标记的心脏交感神经受体显像剂发展迅速,笔者综述了其中几种显像剂的研究新进展。Abstract: It is crucial that the autonomic nervous system plays a crucial role in regulating cardiovascular function and intact innervation is the basis for normal cardiovascular function. Many cardiac diseases have had neurological alterations before the development of organic lesions, which can be evaluated by PET imaging of radionuclide labeled neurotransmitter analogues. It can sensitively reflect the integrity of cardiac autonomic nervous function, the secretory function and activity of neurons, and provide early diagnosis and timely intervention for cardiovascular disease. In recent years, carbon-11 labeled cardiac sympathetic nerve receptor imaging agents have developed rapidly. The author reviews the new progress of several imaging agents.
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