Pregnancy Ultrasound

Ultrasounds are a significant and exciting part of pregnancy, offering a glimpse into your baby’s development. They are safe, painless and a valuable tool in prenatal care. At Banner Health, our expert team is here to guide you through every ultrasound and milestone of your pregnancy journey.

What is a pregnancy ultrasound?

A pregnancy ultrasound uses high-frequency sound waves to create images of your developing baby. Unlike imaging tests that use radiation, ultrasounds are safe for both you and your baby. These scans can detect important details, including your baby’s heart rate, gestational age and potential pregnancy complications. They also help your doctor decide if additional ultrasounds or further tests, such as chorionic villus sampling, are needed.

When are ultrasounds used in pregnancy?

Pregnancy ultrasounds are used at various stages to monitor your baby's growth and overall health:

• Early pregnancy: An abdominal ultrasound or a transvaginal ultrasound may be performed to confirm the due date and check for early signs of development.
• 18 to 20 weeks: During the second trimester, a more detailed fetal ultrasound is often done to check for birth defects, the baby’s gender, and how well major organs are forming.
• Later stages: Ultrasounds may also be used to monitor the baby’s position and amniotic fluid levels or to check for signs of pregnancy complications.

Types of pregnancy ultrasounds

Different types of ultrasounds can be used throughout pregnancy, depending on your needs:

• Transabdominal ultrasound: The most common type, performed on the outside of your abdomen. A thin layer of gel helps the transducer glide smoothly, using sound waves to create detailed images. Drinking water beforehand may be recommended to get clearer images.
• Transvaginal ultrasound: Used early in pregnancy or when clearer images are needed. This ultrasound is done inside the vagina and may cause some pressure but is not painful.
• 3D ultrasound: This specialized scan provides a three-dimensional image, showing your baby’s features more clearly.

Preparing for a pregnancy ultrasound

Preparation depends on the type of ultrasound. For a transabdominal ultrasound, you may be asked to drink water before your appointment. Loose, comfortable clothing is recommended for all ultrasound types.

What to expect during your ultrasound

Most pregnancy ultrasounds are conducted at Banner Health hospitals, clinics or Banner Imaging locations. You’ll lie on your back, and a cold gel will be applied to your abdomen to help the transducer move smoothly. The device will send high-frequency sound waves into your body, which bounce back to create images of your baby. Your doctor or a trained technologist will use these images, called sonograms, to check your baby's development.

What can a pregnancy ultrasound detect?

A pregnancy ultrasound can provide essential insights, including:

• Heart rate and growth: Monitoring your baby's heart rate and overall growth ensures healthy development.
• Gender: Usually determined around 18 to 22 weeks.
• Birth defects: Identifies physical abnormalities or issues with organ development.
• Pregnancy complications: Detects ectopic pregnancies and assesses amniotic fluid levels.
• Due date: Confirms or adjusts your estimated due date.

Are there risks associated with ultrasounds?

Pregnancy ultrasounds are considered safe. They use sound waves, not radiation, and have no known risks.

Where to get a pregnancy ultrasound

You can schedule a pregnancy ultrasound with your health care provider at a Banner Health hospital or clinic. Our experienced team is here to support you through every stage of your pregnancy.

For any questions or concerns about ultrasounds or your prenatal care, talk to your Banner Health doctor today.