Fig. 5

Close proximity to upper limb; 31 weeks gestational age fetus shows close proximity of UL to fetal mouth and nose; some details from 4D image (a) and good details from 2D images (b)
Close proximity to upper limb; 31 weeks gestational age fetus shows close proximity of UL to fetal mouth and nose; some details from 4D image (a) and good details from 2D images (b)