The ultrasound is called an NT scan and was done at the MFM's office, which is conveniently located inside the same hospital where we will deliver and where the OB is located. The ultrasound technician was really nice and there was a radiology student there who did a little more playing around at the end.
We got to spend a good 40 minutes watching our bouncing babies while the tech took all of the necessary measurements. They are looking more and more like babies. Both measured right on track at 5.0cm CRL. A's heart rate was 153bpm and B's was 149bpm.
The two key markers they are looking for the in scan is the presence of two nasal bones and a nuchal translucency measurement of under 3mm (fluid in the back of the baby's neck). Both babies had two nasal bones and the NT measurements were 1.2mm for A and 0.9mm for B. The MFM's office called with my blood test results a couple days later and gave us our odds for Trisomy 21 (Downs), 13, and 18 at <1 in 10,000. We were told these results don't get any better than this.
ETA 2/20/12: In light of some recent comments from a certain Republican candidate (Chris calls him a d-bag) whom we disagree with on many levels, I wanted to clarify that we did not elect to have this screening done so we could make a decision about keeping or aborting the pregnancy. If something was wrong, we wanted to be prepared emotionally and to line up the extra monitoring and medical care that would give our babies a happy and healthy life.
Here are a few snapshots from our scan. I could watch these babies all day.
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| Baby A - little foot sticking up! |
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| Baby A - appears to be sucking a thumb |
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| Baby B waves Hi! |
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| Baby B lounging with a hand at the face and legs up |
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| A little baby bump! |
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