Am I worried over nothing? 12 week scan - BPD measurement

hsteph0426

hey ladies!  So I had my 12 week ips screen/test done today (I am 12 weeks 1 day today).  The NT (nuchal translucency) came back at 1mm which is great!  However the BPD measurement (biparietal diameter) came back small.  It was only 1.8 cm (18mm) and everything I've read said that it should be in the 20s.  This can be an indication of spina bifida.  I won't get my blood test back for a while and there is still a second test I have to get done at 15 weeks.. then I get those results . My husband has a cousin with SB on his side and I'm just wondering if anyone else saw their measurements for the BPD and if they were around the same?  Am I crazy?? 

hsteph0426

Here's a pic of what they wrote so you can see for yourself.. it's at the bottom half of the picture.  Thanks ladies!! 

virginiaham

@hsteph0426 what did your doctor say?

VLillyV

Spina Bifida is not exactly genetic. It's more so spontaneous. My OB explained that to me because Spina Bifida runs in my direct side of the family. I wouldn't worry too much. It's not off by a whole lot honestly.

hsteph0426

@virginiaham- I haven't spoken to my midwife yet because by the time she would have gotten the results, her office was closed and doesn't open again until Monday.   @VLillyV that's good to know.  I don't know why they would say that then.. weird! We had to meet with a genetic counsellor when I was pregnant with my dd due to some spots on her heart.. and when we told them our family history she mentioned a correlation between the SB a risk rate for us in our pregnancies, but maybe she was being over cautious?   Im probably just paranoid but the measurement was like less than 2nd percentile and most cases of SB happen below the 5th percentile. 

virginiaham

I'm so sorry for the long wait until you can talk to her.  FWIW, from radiopaedia (radiology reference for medical professionals) BPD is accurate in predicting gestational age from 14-20 weeks.  From that I wonder if it's even a measurement they would worry about right now.

https://radiopaedia.org/articles/biparietal-diameter

eta spelling
 

purplestarz

I was curious so I looked at my medical records online from my NT scan. I read through it all and I don't even see BPD listed. So going off what @virginiaham found, maybe it's nothing to consider at this point?

Boobopgirl

When you're talking about 10 or so milimeters, false results can be very common.  So I wouldn't panic yet (easy to say, rough to do).

hsteph0426

Thank you so much ladies - I truly appreciate your responses.  @virginiaham - it was so thoughtful of you to look up an article and everything in order to bring some piece of mind.  It really helped to see that.  @purplestars-2. - thank you so much for looking up your own medical records and giving some insight on that.. that was so kind!  @Boobopgirl  -  you are absolutely right.   I am going to do my best and put it to the back of my mind unless someone comes and tells me that it's an issue.  

thank you all so much for your help. I am going to try and not make mountains out of molehills - and see a problem where there isn't necessarily one.  I saw a beautiful bouncing babe and I'm going to focus on that.  I would choose to have the baby regardless and so I'm just going to enjoy being pregnant for now.  Thank you all! I love this community and the support that comes along with it.  

sqfibemom

There are some places that measure things differently, maybe this place the measurement is considered normal at 2.0? Prayers for healthy results ❤