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© 2008 by the American Institute of Ultrasound in Medicine
J Ultrasound Med 27:1071-1075 • 0278-4297

Technical Advance

Role of Tomographic Ultrasound Imaging With Spatiotemporal Image Correlation for Identifying Fetal Ventricular Septal Defects

Giuseppe Rizzo, MD, Alessandra Capponi, MD, Marianne Vendola, MD, Maria Elena Pietrolucci, MD and Domenico Arduini, MD

Department of Obstetrics and Gynecology, University of Rome Tor Vergata, Rome, Italy (G.R., M.V., M.E.P., D.A.); and Department of Obstetrics and Gynecology, G. B. Grassi Hospital, Rome, Italy (A.C.).

Address correspondence to Giuseppe Rizzo, MD, Department of Obstetrics and Gynecology, University of Rome Tor Vergata, San Giovanni Calabita Fatebenefratelli Hospital, Isola Tiberina 89, 00186 Rome, Italy. E-mail: giuseppe.rizzo{at}uniroma2.it

Objective. The purpose of this study was to test the possibility of diagnosing ventricular septal defects (VSDs) by using tomographic ultrasound imaging (TUI) on 4-dimensional volumes of the fetal chest obtained with spatiotemporal image correlation and the color Doppler function. Methods. We retrospectively evaluated the 4-dimensional spatiotemporal image correlation volumes of 8 fetuses with VSDs (single in 7 and double in 1) between 20 and 33 weeks’ gestation. The data were analyzed to determine whether VSDs were correctly identified in at least 1 of 7 automatically generated TUI displays. Results. All of the included VSDs were correctly identified with the use of an interslice distance in the TUI function ranging from 0.8 to 2 mm without the need to further manipulate the volume. Conclusions. This automatic approach shows good retrieval of diagnostic cardiac planes in fetuses with VSDs, which may improve the diagnostic accuracy for this disease.

Key Words: congenital heart diseases • fetal echocardiography • 4-dimensional sonography • tomographic ultrasound imaging • ventricular septal defects

Abbreviations: CHD, congenital heart defect • 4D, 4-dimensional • STIC, spatiotemporal image correlation • TUI, tomographic ultrasound imaging • VSD, ventricular septal defect

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