Influence of imaging landmark, stage of gestation, and coil type on the psSAR10g
and average SAR of mother, fetus, and amniotic fluid. (a) Fetus-centered imaging
landmark (*) indicates the highest SAR levels for the fetus. (b) Model
at the seventh month of gestation (7M*) has a higher SAR than the other
pregnant models. (c) Four body coil dimensions at 3T and one at 1.5T coil in CP
mode only; only the short coil induces more SAR than the reference*
coil. Triangle, circle, and star signs correspond to the values in Figure 4 and are consistent with the other
figures.