Dear Sumaira,
If you want to change the assignment of the material to the specified HU range, please edit the *.mat file and determine your HU ranges.
You can easily do it from Flair -> Dicom/Voxel window.
In your case, if you want to define (-500<HU<300) as LUNG and (HU<-500) & (HU>300) as AIR, your file might look like :
#<Unit Material Crho_min Crho_max CdEdx_rel_min CdEdx_rel_max
-500 AIR air_density_min air_density_max 1 1
-300 LUNG lung_density_min lung_density_max 1 1
3070 AIR air_density_min air_density_max 1 1
Where LUNG material you can define in the 'material.inp' file used for Voxel creation.
Information of how to define the correction factors (Crho and CdEdx_rel), please find in the thread:
http://www.fluka.org/web_archive/earchive/new-fluka-discuss/9003.html
Cheers,
Wioletta
________________________________
From: owner-fluka-discuss_at_mi.infn.it [owner-fluka-discuss_at_mi.infn.it] on behalf of NAZIR S. (603223) [s.nazir.603223_at_swansea.ac.uk]
Sent: 29 September 2016 16:00
To: fluka-discuss_at_fluka.org
Subject: [fluka-discuss]: how to scale the ct images
Dear Fluka Experts,
I need your help to learn how to define the HU ranges for different materials on the DICOM-CT images.
for example
I have a Dicom CT image of a plastic material that is bone substitute.
I am interested to prepare a lung model using that image. for lung I need to change the HU values on the images. I am interested to keep only lung tissues(with HU -300 t0 -500) and Air (-1000). can you please help me how can I change these values ?
I am using FLUKA-FLAIR
one more thing please
do we need to insert CORFATCor card mannualy?
As I can see many CORFACTor in VOxel.vxl file?
please answer my questions.
Regards,
Sumaira
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Received on Fri Sep 30 2016 - 13:22:36 CEST