<html 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>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<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;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style>
</head>
<body lang="EN-CA" link="blue" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal">Dear Gate Users,</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am attempting to produce a GATE reconstruction of a Dynamic SPECT System (DSPECT) which uses a rotating (sweeping) detection system instead of the traditional orbiting system.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I noticed from my projection(.sin) & header file (.hdr) that the rotation angles and extent of rotations are incorrect. They state the extent of rotation is 1800 degrees where it is actually only 45 degrees.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This is giving me a problem with reconstruction and also when reconstructing with STIR.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Does anyone know how I can reconstruct a rotating detection system with correct header output files?</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Or does anyone have any suggestions on how to reconstruct a non-orbiting detection system using STIR?</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Attached: Gate Macro, Gate header file, STIR interfile and image of D-SPECT system.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">As always thanks and I appreciate all suggestions,</p>
<p class="MsoNormal">Kurt Van Delinder, M.Sc, M.Sc, RT</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">
Mail</a> for Windows 10</p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</body>
</html>