ArticleEuropean journal of nuclear medicine and molecular imaging2026
First human whole-body biodistribution and dosimetry analysis of [
Article in European journal of nuclear medicine and molecular imaging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
16 authors.
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Abstract
purposeThe 18 kDa translocator protein (TSPO) has been a central molecular target for imaging inflammation in the preclinical and clinical research settings across a plethora of applications, including neuroinflammation, cardiovascular inflammation and cancer. Recently, we reported the development of [
methodsWhole-body PET images were acquired over 250 min after intravenous bolus injection of 184.3 ± 20.2 MBq of [
resultsThe radiotracer biodistribution in humans recapitulated known TSPO expression in various tissues. The main elimination route was found to be hepatobiliary, and the critical organ was the intestine. The cumulated radioactivity excreted by the kidneys was < 10% over the measurement period and no bone uptake suggestive of in vivo defluorination was observed in any of the study subjects. The effective dose ranged between 11.8 ± 0.9 and 12.5 ± 0.9 µSv/MBq. Inter-observer VOI variability had no impact on estimated organ and whole-body effective doses.
conclusion[
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