Isolated small ventricular septal defects in utero: HDlive Flow with spatiotemporal image correlation and HDlive Silhouette case study.

Purpose:To demonstrate shunt flow through small ventricular septal defects (VSDs) using HDlive Flow with spatiotemporal image correlation (STIC) and HDlive Silhouette. Methods:Four cases of isolated small VSDs were evaluated using colour Doppler, and HDlive Flow with STIC and HDlive Silhouette. Results:HDlive Flow with STIC and HDlive Silhouette can improve the ability to depict shunt flow through small VSDs compared with colour Doppler. Conclusion:This technique provides information on spatial recognition of the shunt flow through isolated small VSDs in real time.