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Radiation dose to the fetus from [18F]-FDG administration during the second trimester of pregnancy.
MedLine Citation:
PMID:  22217594     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
ABSTRACT-: The authors estimated the fetal radiation dose from [F]-FDG in a rare case of a woman who underwent a PET/CT scan during the second trimester of pregnancy. The patient, a 27-y-old female with a paraganglioma, received 181.3 MBq [F]-FDG. From the concentrations of radioactivity measured on the images, the time-integrated activity coefficients of the fetus and the placenta were derived. The time-integrated activity coefficients of the mother's organs were taken from the standard values of ICRP publication 106. The final fetal dose was calculated using the 6-mo pregnant model of the OLINDA/EXM software. The fetus showed an overall low and homogeneous [F]-FDG uptake, with an average concentration of 2.41 kBq cm. The uptake in the placenta was generally higher (average concentration = 3.69 kBq cm). The estimated time-integrated activity coefficients were 0.0130 and 0.0058 Bq h Bq for the fetus and the placenta, respectively. The final average dose to the fetus was 1.97 × 10 mGy MBq (3.6 mGy in this patient who received 181.3 MBq). Therefore, the dose to the fetus from [F]-FDG administration during the second trimester of pregnancy is low. When medically indicated, pregnancy should not be a categorical basis for withholding [F]-FDG PET scans.
Authors:
Paolo Zanotti-Fregonara; Thomas M Koroscil; Joseph Mantil; Martin Satter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Health physics     Volume:  102     ISSN:  1538-5159     ISO Abbreviation:  Health Phys     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-01-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985093R     Medline TA:  Health Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  217-9     Citation Subset:  IM    
Affiliation:
* Molecular Imaging Branch, National Institute of Mental Health (NIMH), National Institutes of Health (NIH), Bethesda, MD; † Wright State University Boonshoft School of Medicine, Dayton, OH; ‡ Department of Nuclear Medicine/PET, Kettering Medical Center, Dayton, OH.
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