新型多巴胺受体显像剂18 F-Fallypride的健康志愿者脑P ET/CT显像  

Brain imaging of 18 F-Fallypride in healthy volunteers

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作  者:郭喆[1] 庆海涛[2] 傅小玲[3] 王瑞民[4] 张晓军[4] 张锦明[4] 

机构地区:[1]南京医科大学第一附属医院核医学科,210029 [2]南京森林警察学院心理测试中心 [3]解放军总医院神经内科 [4]解放军总医院核医学科

出  处:《中华核医学与分子影像杂志》2015年第6期456-460,共5页Chinese Journal of Nuclear Medicine and Molecular Imaging

基  金:国家自然科学基金(81450023);中央高校基本科研业务费专项资金项目(RWYB201415);首都临床特色应用研究(Z121107001012116)

摘  要:目的:分析新型多巴胺受体显像剂(s)-(-)-N-(1-烯丙基吡咯烷-2-氨基甲基)-5-氟[18F]丙基-2,3-二甲氧基苯甲酰胺(18 F-Fallypride)在健康志愿者脑内纹状体内及纹状体外各脑区的分布特点。方法11名健康志愿者[男4名,女7名,年龄(43.5±13.7)岁]于注射18F-Fallypride后1 h进行PET/CT显像。对图像分别进行视觉分析及ROI分析,计算各感兴趣脑区与小脑的SUV比值。研究经医院伦理委员会审查通过,志愿者均签署知情同意书。结果18 F-Fallypride广泛分布于各脑区内,各脑区与小脑的SUV比值从高到低的顺序为壳核(15.72±3.69)>垂体(10.24±6.55)>尾状核(8.38±1.26)>杏仁核(6.92±1.32)>丘脑(4.87±1.50)>上下丘(3.91±1-08)>黑质(3.20±0.95)>皮质(颞叶:2-11±1.34,顶叶:1.51±0.57,枕叶:1.31±0.11,额叶:1.30±0-25)。结论18F-Fallypride能在体、无创地显示纹状体及纹状体外核团的D2和D3受体分布情况,18 F-Fallypride PET/CT显像可以用于脑神经疾病研究。Objective To evaluate dopamine D2/D3 receptors status in striatal and extra-striatal re-gions with 18 F-Fallypride PET/CT. Methods A total of 11 healthy volunteers ( 4 males, 7 females, age (43.5±13.7) years) underwent PET/CT at 1 h after 18F-Fallypride injection. Imaging data was analyzed u-sing visual and ROI methods. The SUV ratios of different brain regions to cerebellar lobe were calculated. In-formed consent was obtained from all volunteers. The study was approved by the Ethics Committee of the PLA General Hospital. Results 18 F-Fallypride was widely distributed in striatal and extra-striatal brain re-gions. Distribution of 18 F-Fallypride was consistent in all healthy subjects and the rank order of receptor con-centration(brain region SUV/cerebellum SUV) was putamen(15.72±3.69)〉pituitary(10.24±6.55)〉cau-date(8.38±1.26)〉amygdala(6.92±1.32)〉thalamus(4.87±1.50)〉colliculi(3.91±1.08)〉substantia nigra (3.20±0.95)〉cortex(temporal cortex: 2.11±1.34, parietal cortex: 1.51±0.57, occipital cortex: 1.31± 0-11, frontal cortex:1-30±0.25). Conclusion 18F-Fallypride PET/CT is suitable to study D2/D3 recep-tors status in striatal and extra-striatal brain regions.

关 键 词:受体 多巴胺 FALLYPRIDE 氟放射性同位素 体层摄影术 发射型计算机 体层摄影术 X线计算机 

分 类 号:R817.4[医药卫生—影像医学与核医学]

 

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