<!-- BaNnErBlUrFlE-BoDy-start -->
<!-- Preheader Text : BEGIN -->
<div style="display:none !important;display:none;visibility:hidden;mso-hide:all;font-size:1px;color:#ffffff;line-height:1px;max-height:0px;opacity:0;overflow:hidden;">
Agree with the Gibbs artifact assessment for the ACR T1. It is possible that a high-pass filter was left on. We had this issue recently and had to turn it off before getting decent images. The Site T1 seems to be affected with motion. _________________________________________________</div>
<!-- Preheader Text : END -->
<!-- Email Banner : BEGIN -->
<div style="display:none !important;display:none;visibility:hidden;mso-hide:all;font-size:1px;color:#ffffff;line-height:1px;max-height:0px;opacity:0;overflow:hidden;">ZjQcmQRYFpfptBannerStart</div>
<!--[if ((ie)|(mso))]>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="padding: 0px 0px 10px 0px; direction: ltr" lang="en"><tr><td>
<table border="0" cellspacing="0" cellpadding="0" style="padding: 0px 8px 6px 8px; width: 100%; border-radius:4px; border-top:4px solid #8c8e91;background-color:#cfd3d7;"><tr><td valign="top">
<table align="left" border="0" cellspacing="0" cellpadding="0" style="padding: 0px 8px 4px 8px; font-size: 12px; line-height: 16px">
<tr><td style="color:#000000; font-family: 'Arial', sans-serif; font-weight:bold; font-size:14px; line-height: 20px; direction: ltr">
This Message Is From an External Sender
</td></tr>
<tr><td style="color:#000000; font-weight:normal; font-family: 'Arial', sans-serif; font-size:12px; direction: ltr">
This message came from outside your organization.
</td></tr>
</table>
<![if ie]><br clear="all"><![endif]>
<table align="right" border="0" cellspacing="0" cellpadding="0" style="padding: 0px 0px 4px 0px; font-size: 14px; line-height: 36px"><tr>
<td style="direction: ltr"> <a target="_blank" href="https://us-phishalarm-ewt.proofpoint.com/EWT/v1/KGKeukY!vwQf06YtD6YgRRdx_y-EV3iTznfBBslbFhjkvt0ZNtFuni-lcsO5bWB3_vLUy2YsFH2awC1UYgfQyGcJAjlKd7gVTI0A36SqvSFsmX73OWm75JhX7eLi6ETvIfwis5OuUSFf5NjCz0cbKabX4--aT4K_Pw4zHaEG-A$" style="mso-padding-alt: 7px; padding: 7px; border-radius: 2px; border: 1px solid #666666; "><strong style="font-weight: normal; color: #000000; text-decoration: none; font-family: 'Arial', sans-serif; font-size: 14px;"> Report Suspicious </strong></a> </td>
</tr></table>
</td></tr></table>
</td></tr></table>
<![endif]-->
<![if !((ie)|(mso))]>
<div dir="ltr" lang="en" id="pfptBannerz230nls" style="all: revert !important; display:block !important; text-align: left !important; margin: 0 0 10px 0 !important; padding:7px 16px 8px 16px !important; border-radius: 4px !important; min-width: 200px !important; background-color: #cfd3d7 !important; background-color: #cfd3d7; border-top: 4px solid #8c8e91 !important; border-top: 4px solid #8c8e91;">
<div id="pfptBannerz230nls" style="all: unset !important; float:left !important; display:block !important; margin: 1px 0 1px 0 !important; max-width: 600px !important;">
<div id="pfptBannerz230nls" style="all: unset !important; display:block !important; visibility: visible !important; background-color: #cfd3d7 !important; color:#000000 !important; color:#000000; font-family: 'Arial', sans-serif !important; font-family: 'Arial', sans-serif; font-weight:bold !important; font-weight:bold; font-size:14px !important; line-height:1.29 !important; line-height:1.29">
This Message Is From an External Sender
</div>
<div id="pfptBannerz230nls" style="all: unset !important; display:block !important; visibility: visible !important; background-color: #cfd3d7 !important; color:#000000 !important; color:#000000; font-weight:normal; font-family: 'Arial', sans-serif !important; font-family: 'Arial', sans-serif; font-size:12px !important; line-height:1.5 !important; line-height:1.5; margin-top:2px !important;">
This message came from outside your organization.
</div>
</div>
<div id="pfptBannerz230nls" style="all: unset !important; float: right !important; display: block !important; display: block; margin-left: 16px !important; margin-top: 1px !important; text-align: right !important; width: fit-content !important; font-size: 12px !important">
<a id="pfptBannerz230nls" href="https://us-phishalarm-ewt.proofpoint.com/EWT/v1/KGKeukY!vwQf06YtD6YgRRdx_y-EV3iTznfBBslbFhjkvt0ZNtFuni-lcsO5bWB3_vLUy2YsFH2awC1UYgfQyGcJAjlKd7gVTI0A36SqvSFsmX73OWm75JhX7eLi6ETvIfwis5OuUSFf5NjCz0cbKabX4--aT4K_Pw4zHaEG-A$"
style="all: unset !important; display: inline-block !important; text-decoration: none">
<div class="pfptPrimaryButtonz230nls" style="display: inline-block !important; display: inline-block; visibility: visible !important; opacity: 1 !important; color: #000000 !important; color: #000000; font-family: 'Arial', sans-serif !important; font-family: 'Arial', sans-serif; font-size: 14px !important; font-weight: normal !important; text-decoration: none !important; border-radius: 2px !important; margin-top: 3px !important; margin-bottom: 3px !important; margin-left: 16px !important; padding: 7.5px 16px !important; white-space: nowrap !important; width: fit-content !important;
border: 1px solid #666666">
Report Suspicious
</div>
</a>
</div>
<div style="clear: both !important; display: block !important; visibility: hidden !important; line-height: 0 !important; font-size: 0.01px !important; height: 0px"> </div>
</div>
<![endif]>
<div style="display:none !important;display:none;visibility:hidden;mso-hide:all;font-size:1px;color:#ffffff;line-height:1px;max-height:0px;opacity:0;overflow:hidden;">ZjQcmQRYFpfptBannerEnd</div>
<!-- Email Banner : END -->
<!-- BaNnErBlUrFlE-BoDy-end -->
<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head><!-- BaNnErBlUrFlE-HeAdEr-start -->
<style>
#pfptBannerz230nls { all: revert !important; display: block !important;
visibility: visible !important; opacity: 1 !important;
background-color: #cfd3d7 !important;
max-width: none !important; max-height: none !important }
.pfptPrimaryButtonz230nls:hover, .pfptPrimaryButtonz230nls:focus {
background-color: #adb0b4 !important; }
.pfptPrimaryButtonz230nls:active {
background-color: #8c8e91 !important; }
html:root, html:root>body { all: revert !important; display: block !important;
visibility: visible !important; opacity: 1 !important; }
</style>
<!-- BaNnErBlUrFlE-HeAdEr-end -->
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Aptos;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:10.0pt;
font-family:"Aptos",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
span.EmailStyle20
{mso-style-type:personal-reply;
font-family:"Arial",sans-serif;
color:#215E99;
font-weight:normal;
font-style:normal;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;
mso-ligatures:none;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99">Agree with the Gibbs artifact assessment for the ACR T1. It is possible that a high-pass filter was left on. We had this issue recently and had to turn it off before
getting decent images. The Site T1 seems to be affected with motion.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99"><o:p> </o:p></span></p>
<div>
<div>
<div>
<div>
<div>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#174E86">_________________________________________________</span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99"> </span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99">Sameer Tipnis, PhD, DABR, FAAPM</span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99">Professor of Radiology & Chief, Division of Medical Physics</span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99">Program Director, Diagnostic Medical Physics Residency</span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99">Dept. of Radiology and Radiological Sciences</span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99">Medical University of South Carolina</span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99">96 Jonathan Lucas Street, MSC 323</span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99">Charleston, SC 29425</span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99"> </span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99">Phone: (843)-792-3833</span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99">Fax: (843)-792-2642</span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99">_________________________________________________</span></i><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#215E99"> </span><span style="font-size:12.0pt;color:#215E99"><o:p></o:p></span></p>
</div>
</div>
</div>
</div>
</div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#215E99"> </span><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#215E99"><o:p></o:p></span></p>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list-bounces+tipnis=musc.edu@lists.osu.edu>
<b>On Behalf Of </b>Dave Jordan via Intl_dxmedphys_wd_osu_list<br>
<b>Sent:</b> Tuesday, October 6, 2026 5:54 PM<br>
<b>To:</b> High, Maynard <Maynard.High@wmchealth.org>; DxMedPhys List <intl_dxmedphys_wd_osu_list@lists.osu.edu> <intl_dxmedphys_wd_osu_list@lists.osu.edu><br>
<b>Subject:</b> Re: [Intl_DxMedPhys] MRI ACR Phantom Artifacts<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white">Your ACR T1 has Gibbs artifact; normally you don't see that on those GEs, so there may be some low-pass filtering turned off in a service menu or control variable.
Looks pretty normal for a Siemens or Philips to me. Your Site T1 appears<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white">Your ACR T1 has Gibbs artifact; normally you don't see that on those GEs, so there may be some low-pass filtering turned off in a service menu or control variable.
Looks pretty normal for a Siemens or Philips to me. Your Site T1 appears<o:p></o:p></span></p>
</div>
<div name="messageBodySection">
<p class="MsoNormal"><span style="font-size:12.0pt">Your ACR T1 has Gibbs artifact; normally you don't see that on those GEs, so there may be some low-pass filtering turned off in a service menu or control variable. Looks pretty normal for a Siemens or Philips
to me.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Your Site T1 appears to have some vibration that is sensitive at that particular TR value. If you're not seeing it on your ACR sequences and your Site T2 that pretty much confirms it, but you can try running
the Site T1 with a different TR (try, say, 1500 or 1900 ms) and confirm that it goes away.<o:p></o:p></span></p>
</div>
<div name="messageSignatureSection">
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">---<o:p></o:p></span></p>
</div>
<div name="messageReplySection">
<p class="MsoNormal"><span style="font-size:12.0pt">On Oct 6, 2026 at 4:06</span><span style="font-size:12.0pt;font-family:"Arial",sans-serif"> </span><span style="font-size:12.0pt">PM -0400, High, Maynard via Intl_dxmedphys_wd_osu_list <<a href="mailto:intl_dxmedphys_wd_osu_list@lists.osu.edu">intl_dxmedphys_wd_osu_list@lists.osu.edu</a>>,
wrote:<br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white">MRI experienced Listers: I have come across some nasty artifacts in the ACR Phantom images for ACR accreditation images and wonder if anybody has any advice. The
MRI is a 2014 GE Optima MR450W. All images were with PURE uniformity correction<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:black">MRI experienced Listers:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">I have come across some nasty artifacts in the ACR Phantom images for ACR accreditation images and wonder if anybody has any advice.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">The MRI is a 2014 GE Optima MR450W. All images were with PURE uniformity correction on and the coil was an HNS Head 12-Channel.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">The phantom is the Medium sized.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">First is the ACR T1 sequence:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">What could be causing these rings?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><image.png><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<div id="Signature">
<p class="MsoNormal"><span style="color:black">Next is the Site FSE T1 Flair<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black"><image.png><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Maynard High<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Medical Physics: Westchester Medical Center - NYMC<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">914-493-1410<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><a href="mailto:maynard.high@wmchealth.org">maynard.high@wmchealth.org</a><o:p></o:p></span></p>
</div>
</blockquote>
</div>
</div>
</body>
</html>