期刊
RADIOGRAPHICS
卷 22, 期 5, 页码 1125-1137出版社
RADIOLOGICAL SOC NORTH AMERICA
DOI: 10.1148/radiographics.22.5.g02se171125
关键词
fetus; cardiovascular system; fetus; US; heart; abnormalities; heart; US; tetralogy of fallot; ventricular septal defect
Structural cardiac anomalies are estimated to occur in 8 of every 1,000 live births. Cardiovascular anomalies are frequently associated with other congenital anomalies because the heart is among the last organs to develop completely in the embryo. The guidelines for routine prenatal evaluation of both the American College of Radiology and the American Institute of Ultrasound in Medicine require evaluation of the fetal heart. The ultrasonographic (US) view that is most commonly used is the four-chamber view, which allows assessment of abnormalities involving the atria and the ventricles. However this view is not ad, equate for demonstrating the outflow tracts of the aorta and pulmonary artery. A base view that demonstrates the crossing of the great vessels can be obtained just superior to the four-chamber view. Addition of the base view to routine US evaluation with the four-chamber view increases not only the sensitivity for detection of cardiac anomalies but also the accuracy of diagnosis. (C)RSNA, 2002.
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