中文摘要：

脑部分子影像对于脑功能和神经疾病发病机理研究以及早期诊断有重大意义，多巴胺受体系统与人的情绪、爱情、成瘾、奖励机制和一些疾病有重要的联系。本文以新型脑神经多巴胺受体D2/D3显像剂18F-fallypride为例，探讨了18F-fallypride的研究发展和应用趋势，并应用自主研发的AMIC Ray-Scan 64 PET/CT成像系统对15例健康志愿者进行了临床研究，图像上观测到纹状体和外纹状体的信号清晰，药物分布均匀、对称。此外，脑肿瘤细胞凋亡显像剂18F-ML-10新药可对脑肿瘤的放射性治疗效果进行评估，本文综述了18F-ML-10临床应用的发展，并对10例脑瘤患者接受放射性治疗前后的细胞凋亡情况进行了对比评估，并通过图像对放射性治疗给出评价。

英文摘要：

Brain molecular imaging plays an important role in investigations on the function of brain and mechanism of neural diseases. The dopaminergic receptor system is closely related with emotion, love, addiction, incentives, many diseases and disorders. Hereby, taking 18F-fallypride as an example of novel dopamine receptor D2/D3 probes visualizing the Dopamine D2/D3 receptors in striatal and extra-striatal areas, this paper reviews the trends of R＆amp;D（Research and Development） and clinical applications of 18F-fallypride, and investigates 18F-fallypride with 15 healthy volunteers’ brain imaging by using the self-innovated AMIC Ray-Scan 64 PET/CT. The result shows a homogeneous and symmetrical distribution of signal in striatal and extra-striatal areas, indicating that the 18F-fallypride, as well as Ray-Scan 64 PET/CT, has demonstrated an excellent performance in dopamine receptor imaging. Additionally, this paper also reviews the progress of clinical uses of 18F-ML-10, a molecular probe to visualize apoptosis. Besides, 10 patients with brain tumorsare investigated by 18F-ML-10-PET/CT imaging pre-and post-radiation with AMIC Ray-Scan 64 PET/CT, in order to evaluate the effect of treatments.