Spatio-temporal image correlation rendering mode visualizes the specific location and surrounding structure of ventricular septal defect.

The limitations of traditional two-dimensional (2D) echocardiography in accurate diagnosis of ventricular septal defect (VSD) prompt the necessity of spatio-temporal image correlation (STIC) technology. Our study attemped to reconstruct the volume data of VSD using STIC rendering mode, and dynamically display the specific location and surrounding structure of VSD, in order to assist conventional 2D echocardiography. A total of 20 fetuses diagnosed as VSD using 2D echocardiography were enrolled in our study. Multiplane imaging mode was applied to obtain 2D four-chamber view, five-chamber view, and main artery short-axis view. STIC rendering mode was performed to collect volume data and visualize the shape, specific location and surrounding structure of VSD. A more detailed VSD classification for 20 VSD cases was identified. Based on the specific location and surrounding structure under STIC images, they were further subdivided into different types. STIC rendering mode intuitively showed the specific shape and surrounding structure of VSD. STIC technology can be used for definite classification and diagnosis of VSD, combining with 2D echocardiography to make a better therapeutic intervention in clinical practice. Clin. Anat. 32:408-420, 2019. © 2019 Wiley Periodicals, Inc.