Re: human error in StarScan

[Guest guest]

Annette,

Officially, the amount of error in a starscan is supposed to be 0.5 mm. However, if the baby was moving too much, then the error could be higher than this. How good was the scan? I know that toddlers tend to not like the scans or tolerate them as well as the younger babies.

In our case, we had three people hold down so that we could get the scan without movement. In the times that we only had two of us (progress scans), our ortho would always mention that there was a little bit of movement in one area that she could see, but felt that the results were accurate enough. For the beginning and ending scans, we did three of us and there were no ripples. So, I feel the most confident in the beginning and ending scans.

My daughter also went down by 1.1 percent in her brachy between the initial scan and the scan for the helmet. I believe that it was due to one of two things. First, we had been doing CST for three weeks already. Second, it was a different ortho that did that scan, and there was movement during it. Looking back, I wonder if the padding that had to be added to the top of the band would have needed to be added if we'd used that initial scan with the regular ortho. Or, if I had waited for her to come back from her conference. Later I asked our regular ortho to take a look at it and she said that there was extra height on that scan. So, in the end, she used the initial scan for the comparison rather than the scan prior to the helmet.

So, I guess it depends upon how much the toddler moved during the scan on how much error there could be.

human error in StarScan

I was wondering about the accuracy of the starscan results. My daughter went down in asymmetry by 1.2mm before we banded her. Is that possible or is the change likely due to other factors like human error? I could ask the orthotist but just wondering if others on this group had some insight.Thanks,Annette

[Guest guest]

Hi,

Perhaps, if the error is .5mm, most of this is error.  Maybe, the first

scan was high by ~.5mm and the second one low by ~.5mm.  Perhaps, there

was some improvement too.  Our brachy percent bounces around a little. 

Last scan it went up almost 1 percent.  The scan before showed a bigger

than expected drop in the brachy percent, so I think some was error. 

Our last scan may have been the most accurate.  Our ortho usually gives

us some idea as to the accuracy of the individual scans.  He told my

husband that the last scan was as a good as you can get with a crying

17 month old and he seemed fairly confident in it.

Best,

Kathy

wrote:

 

Annette,

 

Officially, the amount of error in a starscan is supposed to be

0.5 mm. However, if the baby was moving too much, then the error could

be higher than this. How good was the scan? I know that toddlers tend

to not like the scans or tolerate them as well as the younger babies.

 

In our case, we had three people hold down so that we

could get the scan without movement. In the times that we only had two

of us (progress scans), our ortho would always mention that there was a

little bit of movement in one area that she could see, but felt that

the results were accurate enough. For the beginning and ending scans,

we did three of us and there were no ripples. So, I feel the most

confident in the beginning and ending scans.

 

My daughter also went down by 1.1 percent in her brachy between

the initial scan and the scan for the helmet. I believe that it was due

to one of two things. First, we had been doing CST for three weeks

already. Second, it was a different ortho that did that scan, and there

was movement during it. Looking back, I wonder if the padding that had

to be added to the top of the band would have needed to be added if

we'd used that initial scan with the regular ortho. Or, if I had waited

for her to come back from her conference. Later I asked our regular

ortho to take a look at it and she said that there was extra height on

that scan. So, in the end, she used the initial scan for the comparison

rather than the scan prior to the helmet.

 

So, I guess it depends upon how much the toddler moved during the

scan on how much error there could be.

 

       

 

human error in StarScan

 

I was wondering about the accuracy of the starscan results. My

daughter went down in asymmetry by 1.2mm before we banded her. Is that

possible or is the change likely due to other factors like human error?

I could ask the orthotist but just wondering if others on this group

had some insight.

Thanks,

Annette

[Guest guest]

Hi,

I forgot to mention.  We have had the asymmetry measurement go up 0.5mm

between scans spaced 4 weeks apart.  We knew the head did not get

worse.  It even looked a little better.  Still I felt horrible with

these scans results.  The following scan the asymmetry dropped again. 

-Kathy, mom to

wrote:

 

Annette,

 

Officially, the amount of error in a starscan is supposed to be

0.5 mm. However, if the baby was moving too much, then the error could

be higher than this. How good was the scan? I know that toddlers tend

to not like the scans or tolerate them as well as the younger babies.

 

In our case, we had three people hold down so that we

could get the scan without movement. In the times that we only had two

of us (progress scans), our ortho would always mention that there was a

little bit of movement in one area that she could see, but felt that

the results were accurate enough. For the beginning and ending scans,

we did three of us and there were no ripples. So, I feel the most

confident in the beginning and ending scans.

 

My daughter also went down by 1.1 percent in her brachy between

the initial scan and the scan for the helmet. I believe that it was due

to one of two things. First, we had been doing CST for three weeks

already. Second, it was a different ortho that did that scan, and there

was movement during it. Looking back, I wonder if the padding that had

to be added to the top of the band would have needed to be added if

we'd used that initial scan with the regular ortho. Or, if I had waited

for her to come back from her conference. Later I asked our regular

ortho to take a look at it and she said that there was extra height on

that scan. So, in the end, she used the initial scan for the comparison

rather than the scan prior to the helmet.

 

So, I guess it depends upon how much the toddler moved during the

scan on how much error there could be.

 

       

 

human error in StarScan

 

I was wondering about the accuracy of the starscan results. My

daughter went down in asymmetry by 1.2mm before we banded her. Is that

possible or is the change likely due to other factors like human error?

I could ask the orthotist but just wondering if others on this group

had some insight.

Thanks,

Annette