Accuracy of pregnancy dating scans

Lucky Saraswat, consultant gynecologist from Aberdeen Royal Infirmary, in a recent press release.

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The American College of Obstetricians and Gynecologists 409 12th Street, SW, PO Box 96920, Washington, DC 20090-6920 Ultrasound in pregnancy. The choice of transducer frequency is a trade-off between beam penetration and resolution.

Lower frequencies provide better penetration but at the expense of resolution.

Selection of the proper transducer is based on the clinical situation; however, with modern equipment, abdominal transducers generally allow sufficient penetration in most patients while providing adequate resolution.

Women with the condition must be alerted to the full extent of risks, including the increased likelihood of miscarriage and ectopic pregnancy within the first trimester.

They should also be informed that their pregnancy will warrant “increased monitoring by ultrasound scans, and greater vigilance to identify potential complications such as bleeding and preterm delivery,” Saraswat said.

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