Is it common not to be able see the heart well enough during a 19 week ultrasound so we have get second one?

During a 19-week ultrasound, it is common to obtain adequate visualization of the fetal heart. However, in certain circumstances, limitations may arise that could affect the clarity of the images, such as:

1. Fetal Position: If the fetus is not in a favorable position or is actively moving, it might be challenging to capture optimal views of the heart.

2. Maternal Factors: Certain factors related to the mother can impact the ultrasound quality, such as the amount of amniotic fluid, maternal body habitus, or presence of uterine fibroids.

3. Equipment Limitations: The type of ultrasound equipment used and the expertise of the sonographer can influence the quality and accuracy of the images. Older or less advanced ultrasound systems may have lower resolution and produce less detailed images.

4. Fetal Anomalies: In some cases, underlying fetal conditions or abnormalities can make it more difficult to visualize specific structures, including the heart.

If the sonographer is unable to obtain satisfactory images of the fetal heart during the 19-week ultrasound, they may recommend a follow-up ultrasound to be conducted at a later date, usually a few weeks later, to allow for better visualization. This is done to ensure a more comprehensive assessment of fetal anatomy and well-being.

During the second ultrasound, the sonographer will attempt to capture clearer views of the heart, check for any structural abnormalities, and evaluate the overall cardiac function. If the heart appears normal and there are no concerns, the follow-up ultrasound may provide the necessary reassurance and information for further prenatal care.