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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I'm wondering whether anyone can help me...</span></font></p>
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font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>...I have some visible human data of the head and would
like to create 3D volumes prior to performing a registration. The details of
the registration are not important at this stage, what I am more concerned with
is the finer details behind the 2D slices that create the volume. </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>One of the datasets (frozen CT) has a constant image spacing
for the 100 or so slices I am interested in (e.g. 0.55mm/pixel), whereas the
other dataset (normal, fresh CT) has variable image spacing (e.g.
0.55-0.75mm/pixel). I have written a small matlab script to read in the *.txt
file that is provided with each 2D data file to create a separate *.mha file
that is then used with a script similar to the ImageSeriesReadWrite.cxx example
script to create a 3D dicom file. </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>When I check the header of the newly created 3D dicom file
there are only one pair of values for the image spacing, presumably of the
final image slice that was used to compile it. Does the newly created dicom
file contain the correct image spacing for all slices, or are they all stored
at the displayed value (therefore rendering the file useless)?</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>If this is the case, is there any way around it apart from
creating several smaller 3D dicom volumes?</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Many thanks in advance,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Richard.</span></font></p>
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font-family:Arial'> </span></font></p>
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font-family:Arial'> </span></font></p>
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font-family:Arial'> </span></font></p>
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