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Comparison of Conventional Transabdominal and Transvaginal Ultrasound and 3D Transvaginal Ultrasound in the Evaluation of First-Trimester Nuchal Translucency

University of Colorado Health Sciences Center, Denver, Colorado; 1065 Kearney Street, Denver, CO 80220; darleen.cioffi-ragan{at}uchsc.edu

This study represents a comparison of conventional transabdominal and transvaginal ultrasound and 3D transvaginal ultrasound in the evaluation of first trimester nuchal translucency. The 2D sonographic examinations were performed on 417 women with singleton pregnancies for evaluation of first trimester nuchal translucency. The 3D volumes were obtained using a transvaginal probe in 235 of the cases. In 208of the 235 patients, the nuchal translucency was obtained with 3D transvaginal transducer. The nuchal translucency is an excellent screening tool used in the first trimester to evaluate the fetus for aneuploidy and other fetal structural abnormalities. The 3D transvaginal ultrasound can obtain the desired image in less time and more efficiently then changing and repositioning the patient.

Key Words: nuchal translucency • first trimester • 3D transvaginal ultrasound • transabdominal and transvaginal ultrasound

Journal of Diagnostic Medical Sonography, Vol. 18, No. 4, 189-192 (2002)
DOI: 10.1177/875647930201800401


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