anyone know anything about.........?

Question

Just curious to know if anyone knows anything about ultrasounds. When i was 19 weeks i had my 20 week ultrasound done, the baby's heartbeat was in the 150's, And he weighted 9 oz. Is the 9 oz normal for this age? i just wanted to see what your's all weighted around this time!! And on the ultrasound pic, can anyone tell me what TIB stands for? and MI stands for?

Thanks so much everyone!!!!!

Heres an ultrasound pic....:)

http://i149.photobucket.com/albums/s77/jess_n_flip/Picture.jpg

Answer 1

With all 3 of my pregnancies they've voluntarily told me the estimated weight and it was always between 9oz and 12oz so that figure sounds ok, by my experience anyway.

I just pulled out my u/s pictures from September and on all 3 the TIB says "0.4" and the MI says "0.9" on two of them and "1.1" on the third one. I have no idea what that means. Looks like some sort of measurement but I don't know what. Congratulations!!

Answer 2

Congrats on your little boy!!

My doctor wouldn't estimate my son's weight because he said it was too inaccurate. I've heard similar things from other mom's as well. But, we couldn't deny he was a big baby. And, if your doc is right your baby will be even bigger when you give birth. From what I understand they can be 2lbs or more off on the weight.

When you see your OBGYN/midwife ask about the weight. I'm sure they'll raise an eyebrow because that is a very large baby for twenty weeks. My son weighed an ounce less when he was born at 40 weeks.

I don't know what the terms mean. Proabably just medical jargon.

Answer 3

They never told me the weight or length. Just that everything was fine and the baby looked good.
Baby sizes are all different, mine were 6 lbs., 5lbs. 11 oz., and 8 lbs. 2 ozs.
My sisters on the otherhand were 9 lbs. 6 ozs., 10lbs. 4 ozs.
It sounds like you are going to have a big baby. I would definitely hold off buying newborn clothes and get the next size up - 0 - 3 months.

Answer 4

TIB: thermal index with bone at/near the focus

The thermal index is the ratio of the power used to that required to cause a maximum temperature increase of 1°C. A thermal index of 1 indicates a power causing a temperature increase of 1°C. A thermal index of 2 would be twice that power but would not necessarily indicate a peak temperature rise of 2°C. Because temperature rise is dependent on tissue type and is particularly dependent on the presence of bone, the thermal index is subdivided into three indices:

(1) TIS: thermal index for soft tissue;

(2) TIB: thermal index with bone at/near the focus;

(3) TIC: thermal index with bone at the surface (e.g. cranial examination).

For fetal scanning, the highest temperature increase would be expected to occur at bone and TIB would give the ‘worst case’ conditions. The mechanical index and thermal index must be displayed if the ultrasound system is capable of exceeding an index of 1. The displayed indices are based on the manufacturer’s experimental and modelled data. These measurements are not infallible; an independent study has demonstrated significant discrepancies over declared I-SPTA output of up to 400% 16.


MI: mechanical index

The mechanical index is an estimate of the maximum amplitude of the pressure pulse in tissue. It gives an indication as to the relative risk of mechanical effects (streaming and cavitation). The FDA regulations allow a mechanical index of up to 1.9 to be used for all applications except ophthalmic (maximum 0.23).

For Fetal size:
http://www.babycenter.com/general/fetaldevelopment/pregnancy/1290794.html

Average fetal weight at 19 weeks is 8.47 ounces, so you're well within healthy range.

Answer 5

I'm sorry I'm not sure about if it's normal for the age. Also, I really enjoyed looking at your ultrasound pictures. But, for reference, I would encourage you to block out any of your personal information on it. It says your name and some other stuff. Just in case someone is evil and wants to track you down.

Answer 6

After the ultrasounds, the tech didn't tell me the statistics about my babies. I just cared if my kids were okay.

Please don't stress about this. Pregnancy is an emotional rollercoaster so let go of the little things. If anything was awry, your OB/GYN would have let you know.

Answer 7

They did not tell me the weights either. Not sure about the medical jargon either. There is one I understood...It's a BOY!! Congratulations...I'm having a boy too. Ask your doc, he'll clear it up for you.

Answer 8

They didnt tell me the measurements or weight when i went in.

Answer 9

I do not the answers. I just want to thank you for shearing the photos so openly..