Womens Services

Types of Ultrasound

Types of ultrasound screening


First trimester ultrasound (FTS)

FTS requires special training for ultrasonographers and physicians. All of our ultrasonographers are certified by the Nuchal Translucency Quality Review Program, and laboratory audits are in place to make sure that quality is consistent.

Detailed/anatomy survey (high-resolution or Level II ultrasound)

Around 18-20 weeks of gestation, an ultrasound is performed to look at the relationship of the fetus within the uterus and surrounding intra-abdominal structures, location of the placenta, and the size and configuration of the organ systems. Usually most structures will be seen during this ultrasound if the fetus moves into optimal positions. 

Fetal echocardiogram

An echocardiogram is a detailed ultrasound of the heart, in which the chambers, valves and large blood vessels are evaluated from various angles. This exam may be requested for various reasons including prior family history of heart abnormalities, an abnormal rhythmn, a question of an abnormality seen on an ultrasound or a maternal health condition that may alter the fetal heart. Specialized pediatric cardiologists from the Pediatric Cardiology Center of Oregon read the echocardiograms and are regularly scheduled in our clinic to give you the results and their recommendations immediately following your exam.

Fetal well-being (NSTs, BPPs)

In the third trimester, your physician may refer you for testing to make sure your baby is not enduring stress. The nurses may perform a Non-Stress Test (NST) or you may have a Biophysical Profile (BPP). The NST has monitors that listen and record the heart rate and activity of the fetus. The BPP is an ultrasound exam that provides points for amniotic fluid, fetal tone and activity. Either or both tests may be used.