XCAT whole body CT

[Keskal]

Hi,

I was able to use the Sim_Sample_XCAT.py file and simulate an XCAT thorax CT.

I then tried to simulate a whole body CT with a XCAT phantom. When I use the default 50% male phantom (size of the XCAT nurbs file is 60.5 MB (63,512,091 bytes), provided with the XCAT package I get the following error:

examples>python Sim_Sample_XCAT.py
Airscan
Offset scan
Phantom scan
0%| | 0/500 [00:00<?, ?it/s]
Starting to parse nCAT phantom.
Numerical Recipes run-time error...
allocation failure in vector()
...now exiting to system...

Can you please let me know if there are any size limitations. Can I change these limits ?

[zhangjy-ge]

Hi Keskal,

It might be from that your system's RAM is relatively small. Could you let me know your:

• system's RAM size
• how you installed xcist
• all your cfg files if you changed default parameters

so that I can have a better idea about the reason?