申请人:Nelson Research & Development
公开号:US04931270A1
公开(公告)日:1990-06-05
Abnormalitites in the distribution of a dopamine D.sub.2 receptors in humans and other mammals are detected by (1) administering to a human or other mammal an amount of a .sup.18 F-radiolabelled compound sufficient to be detected by a positron emission sensitive means for imaging, said compound having affinity for said receptors selected from the group consisting of optically active or racemic compounds represented by the general formula: ##STR1## (2) forming at least one image showing the distribution of the radiolabelled compound within the human or other mammal using a positron emission-sensitive means for imaging; and (3) determining normality of the concentrations or distribution by comparing the image with an image showing the normal concentrations and distribution of the receptors in humans or mammals of the same species wherein R1-R4, n and m- are as set forth in the specification.
在人类和其他哺乳动物体内多巴胺D.sub.2受体分布异常的情况下,通过以下步骤进行检测:(1)向人类或其他哺乳动物体内注射足以被正电子发射敏感成像手段检测到的.sup.18 F-放射标记化合物,该化合物对所选受体具有亲和力,所选受体包括下述一般式所代表的光学活性或外消旋化合物的群组:##STR1##(2)利用正电子发射敏感成像手段制作至少一幅显示放射标记化合物在人类或其他哺乳动物体内分布情况的图像;以及(3)通过将该图像与显示相同物种人类或哺乳动物体内受体正常浓度和分布的图像进行比较,来确定浓度或分布的正常性,其中R1-R4、n和m如规范中所述。