[Intl_DxMedPhys] OEC Elite field size issue

[Rebecca Milman]

Allen,

Thanks for posting this. I complained to OEC a couple of years ago when we
got several of these units. They tried to deny there was an issue, saying
that if it met the field restriction requirements in the diagonal
directions then it was okay. They then questioned my measurement
methodology. Finally, they told the hospital that they (OEC) had to send
someone out to do extra work to meet the requirements of "their physicist"
(i.e., me). I sent an inquiry to the FDA at the time - who verified that my
interpretation of the regs was correct. I wouldn't call them out on this if
they hadn't been so rude and patronizing about the whole thing.

I am honest enough to admit that I feel somewhat vindicated about the whole
thing. The phrase "GE Healthcare has become aware of a non-conformance"
also makes me laugh because they knew about this at least 2 years ago, and
someone other than me likely pointed it out to them before that. Better
late than never, I suppose!

Rebecca.

*Rebecca Milman, Ph.D.*
*Division Chief, Radiological Sciences*
*Department of Radiology*
*University of Colorado Anschutz Medical Campus*
*Aurora, Colorado*


On Tue, May 20, 2025 at 2:45 PM Goode, Allen R. *HS via
Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list at lists.osu.edu> wrote:

> Listers- In the past there were discussions on the list about
> collimation/field size failures for OEC C-arms. Over the past year, our
> hospital had several collimation failures on new GE/OEC Elite C-arms,
> during acceptance testing. Yesterday
> Listers-
> In the past there were discussions on the list about collimation/field
> size failures for OEC C-arms. Over the past year, our hospital had several
> collimation failures on new GE/OEC Elite C-arms, during acceptance testing.
> Yesterday we received the attached product warning from GE/OEC on this very
> issue. Looks like GE/OEC will be replacing the “squircle” collimator on
> many units.
>
> If you have OEC Elite C-arms, you may want to check if any are on the very
> long list to be replaced.
> Allen
>
> *ALLEN R. GOODE, MS, DABR*
> Chief Diagnostic Medical Physicist
> Department of Radiology & Medical Imaging
> 434.924.2163
> 434.531.2459 (cell)
> 434.982.3500 #2281 (pager)
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.osu.edu/mailman/private/intl_dxmedphys_wd_osu_list/attachments/20250520/5d8390ef/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Picture (Device Independent Bitmap) 1.jpg
Type: image/jpeg
Size: 3736 bytes
Desc: not available
URL: <https://lists.osu.edu/mailman/private/intl_dxmedphys_wd_osu_list/attachments/20250520/5d8390ef/attachment.jpg>