Accuracy 1st trimester ultrasound dating

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Fetal Echocardiography – Uses ultrasound waves to assess the baby’s heart anatomy and function.

This is used to help assess suspected congenital heart defects.

The long-term effects of repeated ultrasound exposures on the fetus are not fully known.

It is recommended that ultrasound only be used if medically indicated. The heartbeat may not be detected for reasons that include: tipped uterus, larger abdomen, or inaccurate dating with last menstrual period.

Ultrasounds are usually combined with other tests, such as triple tests, amniocentesis, or chorionic villus sampling, to validate a diagnosis.

An ultrasound exam may be performed throughout pregnancy for the following medically-necessary reasons: First Trimester: The ultrasound is a noninvasive procedure which, when used properly, has not demonstrated fetal harm.

Additional ultrasounds might be ordered separately if your healthcare provider suspects a complication or problem related to your pregnancy.

Ultrasounds are diagnostic procedures that detect or aid in the detection of abnormalities and conditions related to pregnancy.

Your healthcare provider will use hormone levels in your blood, the date of your last menstrual period and, in some cases, results from an ultrasound to generate an expected date of conception.

The sound waves bounce off bones and tissue returning back to the transducer to generate black and white images of the fetus.

Ultrasounds may be performed at any point during pregnancy, and the results are seen immediately on a monitor during the procedure.

An ultrasound exam is a procedure that uses high-frequency sound waves to scan a woman’s abdomen and pelvic cavity, creating a picture (sonogram) of the baby and placenta.

Although the terms ultrasound and sonogram are technically different, they are used interchangeably and reference the same exam.

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