Tells you the next view
When it sees a good head view, it says so and tells you where to go next:
“Good head view, captured. Now the abdomen: slide down from the head along the body to the belly…”
Scan with someone
beside you.
It tells you which view to get next, measures the baby's head, answers your questions and drafts the report. You check all of it. It runs offline on a Windows laptop.
What it does during a scan
Open a video, image or DICOM file from your scanner. Here's what happens.
Measures the head
It outlines the skull, gives HC, BPD and OFD, and dates the pregnancy using INTERGROWTH-21st.
HC154.7 mmBPD44.0 mmOFD54.3 mm
Shows what a good view needs
Switch to Teach and it lists what a good head view should show, ticking off what it can see.
Answers questions
Ask in plain English. This answer came from the app, word for word. Chat needs a free key from Groq, Gemini or Anthropic.
What should I look for in a good head view? Keep it to three short checks.
Check that both thalami are visualized in the same plane and appear symmetric. Verify the cavum septi pellucidi is present as an anechoic space anterior to the thalami. Confirm the midline falx and skull outline are intact and the head shape is regular.
Lets you change any measurement
Drag the outline and the number updates. Undo puts it back.
OriginalEditedUndo
Checks what's missing, then writes the report
Before the report, it tells you what you haven't measured, and the report says so too instead of leaving a blank.
One page: results, images, a draft summary and space to sign.
Give it a recorded sweep and it goes through every frame, marks the head, abdomen and femur views it finds, and jumps to the best one.
HeadAbdomenFemur
See it in 69 seconds
The opening is staged. Everything after it is the real app. Credits
What it can't do yet
It's a research preview, not a medical device. It hasn't been tested in a clinic or approved by any regulator, and it doesn't replace a sonographer, midwife or doctor. It was trained on public datasets, mostly from European hospitals, so I don't yet know how it does on Nigerian scanners and patients. That's what testing is for.
Free. Works offline. Your scans stay on your laptop.
Try it and tell me what's wrong with it
I need people who scan: sonographers, midwives, doctors, residents and students, at any level. Use it on practice or recorded scans for 30 to 45 minutes on a Windows laptop, then tell me honestly what helped and what got in the way.
You use your own scans. Nothing is sent to me. If you use chat, your question goes to the chat provider you picked.
Work with me on the evidence
The next step is a proper study in Nigerian clinics. If you run a clinic, review scans, hold a fetal ultrasound dataset, do ML research or fund this kind of work, I'd like to talk.
Who's building it
I'm Dr Aniekanabasi Umoh, a doctor at Ahmadu Bello University Teaching Hospital, Zaria. I also build machine learning tools.
I started Fetal Sonographer during my O&G posting, to make scans faster and more reliable for the people already doing them.
Questions
Is it a medical device?
No. It's for research only and hasn't been approved by any regulator.
Does it replace a sonographer?
No. You do the scan and you make the call. It helps.
Does it need the internet?
Not for scans. Chat needs internet and a free key.
Where do my scans go?
Nowhere. They stay on your laptop. Only chat questions go online, to the provider you choose.
Which scans does it read?
Videos, images and DICOM files.
What can it measure?
The head: HC, BPD and OFD, and the dates from them. It can also spot abdomen and femur views, but doesn't measure them yet.
What does it cost?
Nothing while it's in research.
Can I use it on a phone?
Not yet. Windows laptops only for now.
Where do the scan images come from?
The scan on this page is from HC18, T.L.A. van den Heuvel et al., 2018, CC BY 4.0. Dataset ↗. All credits.