Ultrasound screening for structural defects in early pregnancy

Area of Science:

• Obstetrics and Gynecology
• Medical Imaging
• Prenatal Diagnosis

Background:

• Ultrasound visualization has been the primary method for antenatal diagnosis of structural defects since 1975.
• Continuous improvements in equipment and operator expertise have enhanced its reliability and confidence.

Purpose of the Study:

• To evaluate the effectiveness of ultrasound visualization as a screening technique for antenatal structural defects.
• To compare ultrasound screening with serum alpha-fetoprotein screening.

Main Methods:

• Utilizing ultrasound visualization for antenatal screening of structural defects.
• Assessing detection rates and patient acceptability.
• Comparing outcomes with serum alpha-fetoprotein screening methods.

Main Results:

• Ultrasound visualization achieved a 100% detection rate in 1982.
• Ultrasound screening is feasible for the total population and well-accepted by patients.
• Serum alpha-fetoprotein screening was found to be less reliable, causing anxiety, and did not improve detection rates.

Conclusions:

• Ultrasound is the optimal screening technique for detecting structural defects in early pregnancy.
• It obviates the need for amniocentesis as a confirmatory procedure.
• It is a cost-effective and reliable method compared to alternatives.