[Gate-users] DICOM parameters appear incorrect

[Matthew Strugari]

Hi all,

I am attempting to implement a voxelized phantom and voxelized source for a study on Y90 radioembolization. To prepare my dicom data I had to stitch together 3 datasets which I suspect may be causing some issues. Regardless, when I import the dicom data into GATE using the commands below, a number of the image parameters appear incorrect when compared to the metadata (see attached image). For example, the original image is 512x512x1028 while GATE states the matrix size as 71.68x71.68x1028 and resolution as 512x512x1028. Also, the voxel size is incorrect as it should be 0.14 mm isotropically which causes the loaded image to appear incorrect when I include the patient-HU2mat.txt file.

>From what I can tell, my input dicom file appears okay but I am not sure what modifications are required to successfully load the dicom data. Any suggestions would be greatly appreciated.

Thank you,

Matthew



# Voxelized phantom

/gate/world/daughters/name                                 patient
/gate/world/daughters/insert                                 ImageNestedParametrisedVolume
/gate/patient/geometry/setImage                         kidneyData/patient.dcm

#/gate/patient/geometry/setHUToMaterialFile      kidneyData/patient-HU2mat.txt



--

Matthew Strugari

Biomedical Translational Imaging Centre - BIOTIC,
5890 University Ave,
Halifax, NS, B3K 6R8
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