by Norman H. Silverman Over the last two decades, the value of examining the fetal heart has moved from an experimental procedure of diagnostic curiosity to a front-line form of evaluating fetal cardiac health and disease. There have been numerous advances in the associated te- nology, including high-resolution imaging, the introduction of reliable color flow and pulse Doppler, and M-Mode and continuous-wave Doppler recordings in some inst- ments. Such advances continue, with the potential for 3D imaging using spatiotem- ral image correlation (STIC) and full-volume fetal technology. The...