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<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">Within vGATE there is an example_SPECT script termed ‘SPECThead’. The SPECT system is a 4 head SPECT detector with a cylindrical moving source. Within the script there is a built in script for
projection.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">How do you get this script to produce a viable image projection?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">I run the script and receive two projection files (1 in .sin and 1 in .hdr).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">I open imageJ and follow the manual steps:<o:p></o:p></span></p>
<ol style="margin-top:0cm" start="1" type="a">
<li class="MsoListParagraphCxSpFirst" style="margin-left:0cm;mso-add-space:auto;mso-list:l0 level1 lfo1">
<span lang="EN-US" style="font-size:16.0pt;line-height:106%">File -> import raw-> name.sin.<o:p></o:p></span></li><li class="MsoListParagraphCxSpMiddle" style="margin-left:0cm;mso-add-space:auto;mso-list:l0 level1 lfo1">
<span lang="EN-US" style="font-size:16.0pt;line-height:106%">Image type 16-bit Unsigned.<o:p></o:p></span></li><li class="MsoListParagraphCxSpMiddle" style="margin-left:0cm;mso-add-space:auto;mso-list:l0 level1 lfo1">
<span lang="EN-US" style="font-size:16.0pt;line-height:106%">Width, height, number of images from the .hdr files.<o:p></o:p></span></li><li class="MsoListParagraphCxSpMiddle" style="margin-left:0cm;mso-add-space:auto;mso-list:l0 level1 lfo1">
<span lang="EN-US" style="font-size:16.0pt;line-height:106%">Tick Little Endian byte order.<o:p></o:p></span></li><li class="MsoListParagraphCxSpLast" style="margin-left:0cm;mso-add-space:auto;mso-list:l0 level1 lfo1">
<span lang="EN-US" style="font-size:16.0pt;line-height:106%">Tick Use Virtual Stack.<o:p></o:p></span></li></ol>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">I click enter and I receive 16 black projections consisting of a few white dots.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">The script is run in the YZ plane (standard), total 600 secs for 37.5 secs per slice = 16 projections, activity 30,000 Bq.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">How do I receive a good image from the projection function?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">Also, to understand correctly, it’s referring to when the detectors are in the YZ plane? That’s what it is measuring?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">Is there something I am missing?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">All tips will be greatly appreciated.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">Thank you very much,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt">Kurt W. Van Delinder<o:p></o:p></span></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>
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