医疗卫生装备2012，Vol.33Issue(6)：110-111,146,3.
68Ge源与PET/CT的质量控制
68Ge Source and PET/CT Quality Control
王新强 1赵文锐 1川玲 1朱家瑞 1于彤2
作者信息
- 1. 海军总医院核医学科,北京100048
- 2. 首都医科大学附属北京儿童医院影像中心,北京100045
- 折叠
摘要
Abstract
Objective To study the importance of 68Ge calibration sources in PET/CT quality control. Methods The image quality graph and report or the whole body PET images of normal physical examination patients acquired before and after the system calibration with 68'Ge pin source by visualization were compared. Results There were significant differences in the image quality diagram and parameters before and after the correction. The PET image: before the 68'Ge source correction, the transverse image showed the radioactive distribution in the front chest was significantly sparser than that in the back chest, whereas the radioactive distribution in right vision was sparser than that in left vision. There was a radioactivity defect in the right lung but a radioactivity concentration in the back muscles where the SUV values went up significantly. The coronal image showed that there was a radioactivity defect in the bladder area. The image didn't conform to the distribution characteristics of normal FDG image. After the 68Ge source correction, the image showed that radioactivity distribution was not strong or sparse in transverse and coronal images. The radioactive distribution corresponded to the normal person's FDG distribution characteristics. Conclusion 68Ge calibration source is a necessary configuration for the routine operation of PET. [Chinese Medical Equipment Journal,2012,33(6) :110-111,146]关键词
PET/CT/68Ge校正源/系统均一性校正Key words
PET/CT/ 68Ge calibration source/ system uniformity correction分类
机械制造引用本文复制引用
王新强,赵文锐,川玲,朱家瑞,于彤..68Ge源与PET/CT的质量控制[J].医疗卫生装备,2012,33(6):110-111,146,3.
