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Dear castor users,</div>
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I am working on the conversion of Siemens mMR data to castor format. I have used e7tools to derive sinograms. The data looks like a 2 volumes 3D sinograms. In each volume, I can see a stack of 3D sinograms on z-axis. Here is the example of the header.</div>
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<span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">!INTERFILE</span><br>
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<div>name of data file := emis_00.s</div>
<div>image data byte order := LITTLEENDIAN</div>
<div>number of dimensions := 3</div>
<div>matrix size [1] := 344</div>
<div>matrix size [2] := 252</div>
<div>matrix size [3] := 837</div>
<div>number of z elements := 127 230 186 142 98 54 127 230 186 142 98 54 </div>
<div>number format := float</div>
<div>number of bytes per pixel := 4</div>
<div>data offset in bytes := 0</div>
<div>scaling factor (mm/pixel) [1] := 2.0445</div>
<div>scaling factor (mm/pixel) [2] := 1.0</div>
scaling factor (mm/pixel) [3] := 2.03125<br>
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<span style="background-color:rgb(255, 255, 255);display:inline !important">Each item in "<span style="background-color:rgb(255, 255, 255);display:inline !important">number of z elements"<span> [</span></span>127 230 186 142 98 54<span>] actually represents
one or two (even number) 3D sinograms. It looks like the sinograms generated by different rings. My questions are:</span></span><br>
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<li><span style="background-color:rgb(255, 255, 255);display:inline !important"><span>How can I combine these sinograms into a single 3D sinograms? Then, I can convert it to castor format.</span></span></li><li><span style="background-color:rgb(255, 255, 255);display:inline !important"><span>The second volume of the data are sinograms of the object. The first one looks like a sinogram of random events. Am I right?</span></span></li></ol>
<div>I appreciate your help.</div>
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<b>Best Regards,</b></div>
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<b>Shenpeng Li</b></div>
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