PT - JOURNAL ARTICLE AU - Stabin, Michael G. TI - Proposed Addendum to Previously Published Fetal Dose Estimate Tables for <sup>18</sup>F-FDG DP - 2004 Apr 01 TA - Journal of Nuclear Medicine PG - 634--635 VI - 45 IP - 4 4099 - http://jnm.snmjournals.org/content/45/4/634.short 4100 - http://jnm.snmjournals.org/content/45/4/634.full SO - J Nucl Med2004 Apr 01; 45 AB - Placental transfer and fetal dose estimates have been published for women in early pregnancy and at the end of each trimester for a large number of radiopharmaceuticals. For the case of 18F-FDG, a dose was given with no information about placental transfer of the radiopharmaceutical. Recent publications have reported quantitative values for maternal and fetal uptake of 18F-FDG in primates and new values for 18F-FDG kinetics. In this article, these data are applied to give radiation dose estimates for the fetus at all stages of pregnancy for 18F-FDG. The recommended values are 2.2 × 10−2 mGy/MBq in early pregnancy, 2.2 × 10−2 mGy/MBq at 3-mo gestation, 1.7 × 10−2 mGy/MBq at 6-mo gestation, and 1.7 × 10−2 mGy/MBq at 9-mo gestation.