Whole-body biodistribution and radiation dosimetry of 18F-GE067: a radioligand for in vivo brain amyloid imaging.

We have characterized the biodistribution and dosimetry of (18)F-3'-F-6-OH-BTA1 ((18)F-GE067), a newly developed radioligand to visualize and quantify amyloid burden, in healthy elderly human subjects.Six subjects (5 men and 1 woman; age range, 51-74 y) underwent dynamic whole-body PET/CT for 6...

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Main Authors: Koole, M, Lewis, D, Buckley, C, Nelissen, N, Vandenbulcke, M, Brooks, D, Vandenberghe, R, Van Laere, K
Formato: Journal article
Idioma:English
Publicado em: 2009
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author Koole, M
Lewis, D
Buckley, C
Nelissen, N
Vandenbulcke, M
Brooks, D
Vandenberghe, R
Van Laere, K
author_facet Koole, M
Lewis, D
Buckley, C
Nelissen, N
Vandenbulcke, M
Brooks, D
Vandenberghe, R
Van Laere, K
author_sort Koole, M
collection OXFORD
description We have characterized the biodistribution and dosimetry of (18)F-3'-F-6-OH-BTA1 ((18)F-GE067), a newly developed radioligand to visualize and quantify amyloid burden, in healthy elderly human subjects.Six subjects (5 men and 1 woman; age range, 51-74 y) underwent dynamic whole-body PET/CT for 6 h after a bolus injection of (18)F-GE067. Source organs were delineated on PET/CT. Individual organ doses and effective doses were determined.No adverse events or clinically significant changes were observed. (18)F-GE067 is excreted predominantly through the hepatobiliary system. The gallbladder, upper large intestine, and small intestine are the organs with the highest absorbed dose (average, 287, 173, and 155 microGy/MBq, respectively). The mean effective dose was 33.8 +/- 3.4 microSv/MBq, a dose comparable to that of many other (18)F-labeled radiopharmaceuticals.The estimated effective dose of (18)F-GE067 for PET amyloid imaging was acceptable (class II-b defined by the World Health Organization), and relatively low variability between subjects was observed.
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spelling oxford-uuid:ef0307fb-db65-4d40-8010-82ee066e20882022-03-27T11:37:09ZWhole-body biodistribution and radiation dosimetry of 18F-GE067: a radioligand for in vivo brain amyloid imaging.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ef0307fb-db65-4d40-8010-82ee066e2088EnglishSymplectic Elements at Oxford2009Koole, MLewis, DBuckley, CNelissen, NVandenbulcke, MBrooks, DVandenberghe, RVan Laere, KWe have characterized the biodistribution and dosimetry of (18)F-3'-F-6-OH-BTA1 ((18)F-GE067), a newly developed radioligand to visualize and quantify amyloid burden, in healthy elderly human subjects.Six subjects (5 men and 1 woman; age range, 51-74 y) underwent dynamic whole-body PET/CT for 6 h after a bolus injection of (18)F-GE067. Source organs were delineated on PET/CT. Individual organ doses and effective doses were determined.No adverse events or clinically significant changes were observed. (18)F-GE067 is excreted predominantly through the hepatobiliary system. The gallbladder, upper large intestine, and small intestine are the organs with the highest absorbed dose (average, 287, 173, and 155 microGy/MBq, respectively). The mean effective dose was 33.8 +/- 3.4 microSv/MBq, a dose comparable to that of many other (18)F-labeled radiopharmaceuticals.The estimated effective dose of (18)F-GE067 for PET amyloid imaging was acceptable (class II-b defined by the World Health Organization), and relatively low variability between subjects was observed.
spellingShingle Koole, M
Lewis, D
Buckley, C
Nelissen, N
Vandenbulcke, M
Brooks, D
Vandenberghe, R
Van Laere, K
Whole-body biodistribution and radiation dosimetry of 18F-GE067: a radioligand for in vivo brain amyloid imaging.
title Whole-body biodistribution and radiation dosimetry of 18F-GE067: a radioligand for in vivo brain amyloid imaging.
title_full Whole-body biodistribution and radiation dosimetry of 18F-GE067: a radioligand for in vivo brain amyloid imaging.
title_fullStr Whole-body biodistribution and radiation dosimetry of 18F-GE067: a radioligand for in vivo brain amyloid imaging.
title_full_unstemmed Whole-body biodistribution and radiation dosimetry of 18F-GE067: a radioligand for in vivo brain amyloid imaging.
title_short Whole-body biodistribution and radiation dosimetry of 18F-GE067: a radioligand for in vivo brain amyloid imaging.
title_sort whole body biodistribution and radiation dosimetry of 18f ge067 a radioligand for in vivo brain amyloid imaging
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