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<p>Dear all,</p>
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<p class="MsoNoSpacing"><span lang="EN-US">I am having trouble with motion correction reconstruction when using the –im option. When I try to apply motion correction reconstruction I get the error:<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:35.4pt"><i><span lang="EN-US">Error, the 2th motion trigger timestamp: xxx occurs after the end of the last frame (frame 1, timestop: 0!<o:p></o:p></span></i></p>
<p class="MsoNormal"><span lang="EN-US">This error occurs in the code in the file
<i>oDynamicDataManager</i> line 413 and arises incorrectly. When I do –im reconstruction in combination with 1 frame (so no framing), the time stop value of the frame remains 0s, it is not read from the data file. As a result, the time steps of the motion triggers
are greater than the time stop value of the frame (line 407) and you will eventually get an error. When I manually adjust this time stop value to the correct value myself, this error message goes away, but I get incorrect reconstructed images. I only get black
images after reconstruction where each voxel has NaN as its value. When I apply the same motion correction where I also divide the data into, for example, 2 frames (-frm…), I get correctly reconstructed images.<o:p></o:p></span></p>
<span lang="EN-US" style="font-size:11.0pt;line-height:107%;font-family:"Calibri",sans-serif;
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<p><span lang="EN-US" style="font-size:11.0pt;line-height:107%;font-family:"Calibri",sans-serif;
mso-ascii-theme-font:minor-latin;mso-fareast-font-family:Calibri;mso-fareast-theme-font:
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mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
EN-US;mso-bidi-language:AR-SA"><br>
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Does anyone of you know why the option –im gives these weird results, or what I maybe do wrong?<br>
I use list-mode PET data with a total duration of 900 seconds. For the motion correction, I used three motion triggers (and deformations).</span><br>
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<p><span lang="EN-US" style="font-size:11.0pt;line-height:107%;font-family:"Calibri",sans-serif;
mso-ascii-theme-font:minor-latin;mso-fareast-font-family:Calibri;mso-fareast-theme-font:
minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
EN-US;mso-bidi-language:AR-SA"><br>
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<p><span lang="EN-US" style="font-size:11.0pt;line-height:107%;font-family:"Calibri",sans-serif;
mso-ascii-theme-font:minor-latin;mso-fareast-font-family:Calibri;mso-fareast-theme-font:
minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
EN-US;mso-bidi-language:AR-SA">Thanks
in advance!</span></p>
<p><span lang="EN-US" style="font-size:11.0pt;line-height:107%;font-family:"Calibri",sans-serif;
mso-ascii-theme-font:minor-latin;mso-fareast-font-family:Calibri;mso-fareast-theme-font:
minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
EN-US;mso-bidi-language:AR-SA">Inge</span></p>
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