[Intl_DxMedPhys] United Imaging MR magnet field homogeneity testing

[Christina Brunnquell]

I am no longer working with any United systems but when I accepted one
about three years ago and got pretty good information on what they were
doing at that time, they told me that the United engineer coil tests do not
result in accessible images. So, at that time I tested coils using the same
set-up as United does for coil testing and just a standard SE acquisition.
I believe the coil testing set-up was available in a user manual or
possibly on the scanner itself, see attached for the standard set-up for
the coils we had at that site at the time. You can reconstruct images from
individual elements by clicking "Uncombine" under the System tab while
setting up the protocol.
Christina
PS. If anyone comes back here looking for United homogeneity testing
methods... I can email them to you directly until AAPM IT is able to get
them the website, just shoot me an email.


On Sun, Apr 19, 2026 at 8:54 AM Bob Kobistek via Intl_dxmedphys_wd_osu_list
<intl_dxmedphys_wd_osu_list at lists.osu.edu> wrote:

> I’ll be testing my first United Imaging scanner in a few months. Are there
> any physicist-accessible coil testing utilities provided by the
> manufacturer? I’m thinking like the GE MCQA Tool or the Siemens coil tests?
> Robert J. Kobistek, MS, FACR,
>
> I’ll be testing my first United Imaging scanner in a few months. Are there
> any physicist-accessible coil testing utilities provided by the
> manufacturer? I’m thinking like the GE MCQA Tool or the Siemens coil tests?
>
>
>
>
>
> Robert J. Kobistek, MS, FACR, DABR, MRSE(MRSC™)
>
> Medical Physicist
>
> RJK Medical Physics, Inc.
>
> 440-463-7879
>
>
>
> *From:* Intl_dxmedphys_wd_osu_list <
> intl_dxmedphys_wd_osu_list-bounces at lists.osu.edu> *On Behalf Of *Christina
> Brunnquell via Intl_dxmedphys_wd_osu_list
> *Sent:* Saturday, February 7, 2026 2:52 PM
> *To:* Jim Tomlinson <jtomlinson at mpcphysics.com>
> *Cc:* intl_dxmedphys_wd_osu_list at lists.osu.edu
> *Subject:* Re: [Intl_DxMedPhys] United Imaging MR magnet field
> homogeneity testing
>
>
>
> Hi Jim, We’re in the process of polishing homogeneity testing instructions
> for United to be included on the MRI homogeneity testing website and it
> should be up by the end of the month. In the meantime, I’ll send you the
> draft I have off the
>
> Hi Jim,
>
> We’re in the process of polishing homogeneity testing instructions
> for United to be included on the MRI homogeneity testing website and it
> should be up by the end of the month. In the meantime, I’ll send you the
> draft I have off the main list.
>
> Christina
>
>
>
>
>
> On Sat, Feb 7, 2026 at 1:49 PM Jim Tomlinson via
> Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list at lists.osu.edu>
> wrote:
>
> Does anyone have a recommended method for testing MFH on a United Imaging
> MR scanner?   James A. Tomlinson, M. S. , FACR Senior Vice President
> Diagnostic Radiological Physicist, DABR Medical Physics Consultants, Inc. 214
> E. Huron Street, Ann Arbor
> <https://urldefense.com/v3/__https:/www.google.com/maps/search/214*E.*Huron*Street,*Ann*Arbor?entry=gmail&source=g__;KysrKys!!KGKeukY!y5Vu6QBdaVeKX5p8G0vr4BvQ_-XhX5aN1iRFkdUdpxlBhuFixQ5mRC_B0W0y0SWH6DpID87G_H_J2PZFuzFx4PTcJib7JSFFqyg1F3rMisMXT_Db$>
> ,
>
> Does anyone have a recommended method for testing MFH on a United Imaging
> MR scanner?
>
>
>
> *James A. Tomlinson, M.S., FACR*
>
> Senior Vice President
>
> Diagnostic Radiological Physicist, DABR
>
> Medical Physics Consultants, Inc.
>
> 214 E. Huron Street, Ann Arbor, MI 48104
> <https://urldefense.com/v3/__https:/www.google.com/maps/search/214*E.*Huron*Street,*Ann*Arbor,*MI*48104?entry=gmail&source=g__;KysrKysrKw!!KGKeukY!y5Vu6QBdaVeKX5p8G0vr4BvQ_-XhX5aN1iRFkdUdpxlBhuFixQ5mRC_B0W0y0SWH6DpID87G_H_J2PZFuzFx4PTcJib7JSFFqyg1F3rMims5D9-X$>
>
> 734.662.3197 (w) 810.571.0319 (c)
>
>
>
>
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