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Journal of Ultrasound in Medicine, Vol 20, Issue 4 307-313, Copyright © 2001 by American Institute of Ultrasound in Medicine
Application of three-dimensional ultrasonography in the evaluation of the fetal heart
G. Bega, K. Kuhlman, A. Lev-Toaff, A. Kurtz and R. Wapner
Department of Radiology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
The objectives of this study were to determine whether three-dimensional
ultrasonography can provide more cardiac views than two-dimensional
ultrasonography and to develop a standard technique. Eighteen women, 16 to
26 weeks' gestation, were scanned with two-dimensional ultrasonography for
10 minutes or less to obtain fetal heart views. Three-dimensional
ultrasonography was used (< or =10 minutes) to obtain up to 4
acquisitions of the fetal heart: 4-chamber view, left parasagittal,
transverse, and longitudinal nonstandard. Views were later extracted from
saved volume data, comparing the yields of two- and three-dimensional
ultrasonography. The 4-chamber view was obtained in 15 (93%) of 16 cases on
both two- and three-dimensional ultrasonography. On two-dimensional
ultrasonography, the left outflow tract was obtained in 68% of the cases;
on three-dimensional ultrasonography, the left outflow tract was obtained
in 46% from the 4-chamber view acquisition and in 100% from the left
parasagittal acquisition. On two-dimensional ultrasonography, the right
outflow tract was obtained in 68% of the cases; on three-dimensional
ultrasonography, the right outflow tract was obtained in 86% from the
4-chamber view acquisition and in 71% from the left parasagittal
acquisition. Aortic and ductal arches were obtained in 12% and 18%,
respectively, on two-dimensional ultrasonography. On three-dimensional
ultrasonography the aortic and ductal arches were obtained in 66% and 86%,
respectively, from the 4-chamber view acquisition and in 57% and 71%,
respectively, from the left parasagittal acquisition. Three-dimensional
ultrasonography permitted a greater number of cardiac views to be extracted
from volume data than did two-dimensional ultrasonography.
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