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The Preliminary Report of 13N-ammonia PET Scan in Incipient Diagnosis of Acute Cerebral Infarction
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- Author:
- No author available
- Journal Title:
- JOURNAL OF MODERN CLINICAL MEDICAL BIOENGINEERING
- Issue:
- 4
- DOI:
- 10.3760/cma.j.issn.1674-1927.2003.04.004
- Key Word:
- 脑缺血;体层摄影术;发射型计算机;氮;氮放射性同位素
Abstract： 目的探讨氮-13-氨水(13N-NH3)脑血流灌注显像在早期缺血性脑梗死的诊断价值.方法对5例缺血性脑梗死、10例对照组(无脑血管病史的成年人),在首次CT检查后1小时内静脉注射13NH3* 740～925MBq,3分钟后,行T+E三维方式脑血流灌注显像.图象分析采用视图分析及镜像比值法测量左/右侧相应脑区SUV比值(SUVr).结果对照组左/右脑区SUVr为1.0±0.1.脑梗死组SUVr均<0.7(比值介于0.33～0.69,平均0.51).5例缺血性脑梗死患者共发现病灶12个,明显多于其他影像手段所检出病灶数.结论 13N-NH3PET显像作为一种灵敏度高、定位准确且安全的功能影像学检查手段值得在临床中进行推广,对缺血性脑梗死的早期诊断具有重要临床价值.
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