期刊
JOURNAL OF NUCLEAR MEDICINE
卷 50, 期 5, 页码 827-830出版社
SOC NUCLEAR MEDICINE INC
DOI: 10.2967/jnumed.108.058925
关键词
acute rejection; F-18-FDG PET; immunosuppression; liver transplantation
资金
- Ministry of Education, Culture, Sports, Science and Technology of Japan [17390355, 20390349]
- Ministry of Health, Labor and Welfare of Japan [HS KHC1025]
- Grants-in-Aid for Scientific Research [20390349, 17390355] Funding Source: KAKEN
Acute allograft rejection remains a major complication after liver transplantation. We report a semiquantitative imaging method of detecting acute allograft rejection with F-18-FDG PET. Methods: Syngeneic and allogeneic transplanted rats, with or without immunosuppressive treatment, were subjected to serial PET. Autoradiography of the liver was conducted in both the syngeneic and the allogeneic rats. Results: A significant increment of F-18-FDG accumulation in liver allografts was observed by PET on day 2. The F-18-FDG signal was concentrated in the area where inflammatory cells around the vessels were detected by autoradiography. Allotransplanted rats treated with an immunosuppressive agent displayed a marked decrease in hepatic F-18-FDG uptake, compared with allotransplanted rats that were not treated. Conclusion: F-18-FDG PET may be a valid method for facilitating the development of protocols to diagnose graft rejection and to monitor the efficacy of immunosuppressive therapy.
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