[Intl_DxMedPhys] Siemens MRI ACR protocol

[Bob Bell]

 Hi all,
Just a quick comment on this email chain.  It's my understanding ACR allows any filters or instrument settings routinely used for patient studies to be used for phantom studies but does not allow filters/settings unique to phantom studies alone.  Employing filters/settings that are not used for patient studies defeats the purpose of annual testing by artificially altering instrument performance from normal clinical practice.  For example, it's okay to use prescan normalize on Siemens units to improve IIU as long as it is also used for patient studies.  However, altering filters/settings to those not common for clinical studies just to improve instrument phantom performance is a no no.  
Bob Bell
    On Friday, November 7, 2025 at 06:29:18 AM PST, Gretchen Raterman Bell via Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list at lists.osu.edu> wrote:  
 
 For what it's worth, I'll summarize some settings I've gotten from both the DXlist and from Siemens that have helped tremendously. I work on both Aeras and Solas. To improve signal uniformity: - Use B1 filter - Use sum of squaresFor what it's worth, I'll summarize some settings I've gotten from both the DXlist and from Siemens that have helped tremendously.  I work on both Aeras and Solas.
To improve signal uniformity:- Use B1 filter- Use sum of squares (coil combination)
To improve spatial resolution, particularly Solas:   
   - Resolution tab à B1 Filter should be ON
   - Elliptical Filter should be OFF
   - Prescan Normalize should be ON
   - Sequence tab à Gradient Mode should be NORMAL or FAST
   - Sequence tab à RF pulse types, try different SAR settings (try this very last, he was unsure about this one)
   - If none of this improves the high contrast resolution, he highly recommended calling into the  1800 number for remote service:
   
   - In-Line Image Filter should be turned OFF
   - This is a global setting that only FSE or remote service can modify; must be turned back on after acquiring phantom images
   - It tends to be an overall smoothing filter
   - Particularly affects newer software, which is likely why we don’t see it on the Aeras




FYI, I haven't had to do that last bullet point yet, but good to know just in case.

Gretchen R. Bell, M.S., DABR
Diagnostic Imaging Physicist
Ochsner Medical Center
(504)842-8506




On Fri, Nov 7, 2025 at 8:12 AM Hardy, Peter A. via Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list at lists.osu.edu> wrote:

It might be easier to import an .exar file. These are available from Siemens on their Phoenix site. ACR Phantom QA Test I’m attaching the file for a 1. 5T system. Similar files are available for other systems and OS levels. This protocol likely
It might be easier to import an .exar file. These are available from Siemens on their Phoenix site.

ACR Phantom QA Test

 

I’m attaching the file for a 1.5T system. Similar files are available for other systems and OS levels.

This protocol likely includes the updated axial T2 sequence.

 

Peter Hardy, PhD, DABMP

Associate Professor of Radiology, Neuroscience and Biomedical Engineering

Faculty, Division of Diagnostic & Nuclear Medical Physics

Department of Radiology

University of Kentucky College of Medicine

UK HealthCare

800 Rose Street, Room HX-307

Lexington, KY 40536-0293

Phone: (859) 323-2954

Email:peter.hardy at uky.edu

 

 

From: Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list-bounces+peter.hardy=uky.edu at lists.osu.edu>On Behalf Of Adam Springer via Intl_dxmedphys_wd_osu_list
Sent: Friday, November 7, 2025 7:26 AM
To: kenharper14 via Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list at lists.osu.edu>
Subject: [Intl_DxMedPhys] Siemens MRI ACR protocol

 

CAUTION: External Sender

 

Hello, List. I have instructions from Siemens for building the ACR protocol on a Magntom Avanto, from 2005. Does anyone have a more recent set of those instructions? I've had to ask Siemens to reload their ACR protocol at a couple sites recently,

Hello, List.

 

I have instructions from Siemens for building the ACR protocol on a Magntom Avanto, from 2005. Does anyone have a more recent set of those instructions? I've had to ask Siemens to reload their ACR protocol at a couple sites recently, and it would be convenient if I could just change the settings while I'm on site.

 

Happy Friday!

Adam

 

 

 

========================
Adam C. Springer, MS, DABR®
Medical Physicist & CEO
KLS Physics Group, LLC
124 Killgore Rd
Ruston, LA 71270
Office: 318-255-5033
Mobile: 318-272-8292



  
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