Is keepsake ultrasound safe?

There is no confirmed evidence that diagnostic ultrasound at the intensity levels used in obstetric scans causes harm to a fetus. The FDA, ACOG, and AAFP all stop short of calling keepsake ultrasound unsafe — they discourage its non-medical use because long-term effects of repeated, prolonged exposure have not been fully studied, and because non-medical operators may not follow the ALARA principle (As Low As Reasonably Achievable). Our position: a single keepsake session, performed by a credentialed sonographer, with session duration capped at 15 minutes, is broadly aligned with ALARA. More than two keepsake sessions in a pregnancy moves outside the FDA's prudent-use envelope.

No. Ultrasound is not ionizing radiation. It uses high-frequency sound waves, not X-rays or gamma rays. There is no radiation dose in the sense that the word is used for CT scans or X-ray imaging. The actual mechanism of concern with prolonged ultrasound exposure is mild thermal effect (tissue heating) and mechanical effect (cavitation) — both of which are minimal at obstetric scan intensities and become a question only with extended exposure time, which is why the ALARA principle exists.

The honest answer: nobody knows for certain at the upper end. The FDA explicitly says that risks 'may increase with unnecessary prolonged exposure to ultrasound energy.' ACOG recommends that prenatal ultrasound be used only when there is a valid medical reason. Most medically-indicated pregnancies involve 1 to 3 ultrasounds total. Adding a single keepsake session on top of normal medical care is widely considered low-risk; adding repeated weekly keepsake sessions across a pregnancy is not something we would recommend.

The objection is rarely to 3D rendering itself — 3D is just a software view of the same ultrasound data. The objections, repeated by FDA / ACOG / AAFP / UTSW, are: (1) operators at non-medical studios may not be properly trained, (2) sessions may run longer than necessary because the goal is a good photo, not a clinical answer, (3) the experience can give 'false reassurance' that everything is fine medically when only an OB exam can confirm that, and (4) without medical supervision, anomalies the operator notices may not be communicated correctly. Our credentialing gate, our 15-minute session cap, and our mandatory non-diagnostic disclaimer are direct responses to those four concerns.

ALARA stands for 'As Low As Reasonably Achievable.' It is the AIUM-endorsed principle for prudent ultrasound use: keep exposure time and acoustic output as low as reasonably possible while still getting the imaging needed. For keepsake scans, that translates to a short session, a sonographer who knows how to find the baby quickly without sweeping unnecessarily, and stopping when you have the image rather than chasing one more pose. We require all listed studios to follow ALARA in practice and we cap session duration at 15 minutes on every listing.

Three situations: (1) Before 14 weeks for anything other than a 2D heartbeat or early gender check — 3D / 4D rendering is not meaningful that early and the marginal risk-vs-benefit balance shifts. (2) As a substitute for medical prenatal care — keepsake scans are non-diagnostic; if you have a clinical concern, see your OB. (3) More than 2 keepsake sessions across a pregnancy — this moves outside the FDA's prudent-use guidance, regardless of how nice the studio is.