Fetal Imaging

Fetal magnetic resonance imaging (MRI) is a safe, painless way to get clear pictures of your unborn baby. Unlike X-rays, MRIs don’t use radiation or pose risks to you or your child. Instead, they rely on magnets and radio waves to capture images. These scans can see through bones and fluids to create detailed 2D or 3D views.

Fetal MRIs happen after 20 weeks during your second or third trimester. We usually recommend one when an ultrasound raises questions that require further evaluation. They help us take a closer look at important areas – sometimes several at once – like the placenta, brain, heart and bones.

We use the information to understand your baby’s condition, plan for a safe delivery and decide on the best treatment.

Ultrasound uses reflected sound waves to produce an image of your unborn baby, the placenta and the surrounding amniotic fluid. It’s a safe way for imaging specialists to check on your baby’s development and look for any concerns.

At Phoenix Children’s, we use fetal ultrasounds in specific situations, often to complement MRI results or to evaluate certain high-risk conditions. These targeted scans help support the care you’re already receiving from your obstetrician or maternal-fetal medicine specialist.

Fetal computerized tomography (CT) scans use low-dose X-rays to create detailed, 3D images of your baby’s bones. We always use the lowest radiation necessary to minimize any risk.

Our radiologists only recommend CT scans in select cases, like for skeletal dysplasia or when other imaging doesn’t provide enough detail. They’ll carefully discuss this decision with you, your care team and referring provider before moving forward.