CGAL users discussion list

[Simon Perkins <>]

I managed to take the DICOM image files (from the LABELLED_DICOM directory)  and combine them into one volume file in Analyze format using xmedcon (http://xmedcon.sourceforge.net/). I then changed the mesh_3D_image example for Mesh_3 to read in the Analyze header file, instead of the INR liver file. Unfortunately the tetrahedral mesh CGAL produces from this file seems to be somewhat mangled (see attached medit screenshot).


For comparison the volume and voxel dimensions of the Liver file are:
X 438 Y 353 Z 329
VX 0.617188 VY 0.617188 VZ 0.666667

while for the Analyze file they are:
X 512 Y 512 Z 129
VX 0.57 VY 0.57 VZ 1.6


Is the voxel z dimension of 1.6 too large? The Analyze file loads correctly and looks correct in xmedcon. I must admit my knowledge of medical formats is limited so I may be doing something wrong. I create the Analyze volume with the following command.

# medcon -f ~/Desktop/LABELLED_DICOM/image_* -c anlz -n -qc -stack3d

Simon

On Fri, May 14, 2010 at 2:16 PM, Simon Perkins <> wrote:

Hi there

Figure 49.7 in the 3D Meshing Documentation (http://www.cgal.org/Manual/last/doc_html/cgal_manual/Mesh_3/Chapter_main.html) shows a 3D tetrahedral mesh generated from the 3D-IRCADb-01 database. The meshes from this database are in DICOM format. Is there some tool for converting this DICOM format into the INR image format that CGAL expects?

kind regards
  Simon

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