Fig. 5.

Synthesis of a complete fetal brain anatomy with application to segmentation of new fetal MRI. (A) An age-specific MR intensity template and tissue probability maps are synthesized from model parameters in the space of the spatiotemporal atlas. (B) Age-specific shape deformation and linear scaling transform the MR image and tissue maps to the expected size and shape of the new subject. (C) The new subject MRI is registered to the synthetic MR template. (D) Using an inverse transformation, the age-specific tissue probability maps are warped to the space of the new subject and used as priors for atlas-based segmentation of the new subject MRI.