[Gate-users] How to define the range of HU CT image in code?

[Mery MB]

 Hi Dear Gate User


The range should define like that:

7
0 0 Air  false 0 0 0 0.2
1 10 Lung true 0 0 1 0.2
11 1050 Body true 0.3 0.2 0.1 0.2
1051 1150 Muscle true 0.4 0.2 0.4 0.2
1151 1300 Cartilage true 0.2 0.3 0.5 0.2
1301 1600 SpineBone true 0.2 0.1 0.6 0.2
1601 9000 RibBone true 0.1 0.9 0.4 0.2



I wonder If some one know about how to extract the correct range from CT?

Best
Mery

On Tue, Apr 17, 2018 at 4:00 PM Mery MB <mery.mb.mph at gmail.com> wrote:

> Dear Gater
>
> I add a phantom to the code but as it is clear I should add the HU of
> image to the code too.
> I converted DICOM to h33 and I33 for code and I used the following link to
> define th HU
>
>
> http://wiki.opengatecollaboration.org/index.php/Users_Guide:Voxelized_Source_and_Phantom
>
>  # Number of subdivisions
> 3
> # Define the intervals and attach a correlated material
> 0 10 Air
> 11 200 Water
> 201 255 SpineBone
>
> I know all the above definition But for my phantom which have all the
> organs, what is the range of HU for organs? How can define the range of HU
> Number on CT for my code?
> For example the below range: I am not sure the range is correct at all...
>
> 7
> 0 0 Air  false 0 0 0 0.2
> 0 10 Lung true 0 0 1 0.2
> 10 1050 Body true 0.3 0.2 0.1 0.2
> 1050 1150 Muscle true 0.4 0.2 0.4 0.2
> 1150 1300 Cartilage true 0.2 0.3 0.5 0.2
> 1300 1600 SpineBone true 0.2 0.1 0.6 0.2
> 1600 9000 RibBone true 0.1 0.9 0.4 0.2
>
> Best
> Mery
>
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