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<DIV>Hello Gate-users,</DIV>
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<DIV>I'm trying to use XCAT to simulate
voxelized activity phantoms of just
the LV perfusion defect. Due to the introduction, if I want
to place the perfusion defect in the phantoms,
it
should subtract the corresponding lesion activity images
from the phantom activity images. This basically subtracts
activity from the phantom images to create the lesion.
</DIV>
<DIV> </DIV>
<DIV>But I have no idea to subtracts activity from the phantom
activity images in the Gate voxelized phantoms simulation, can anyone give
me some help.</DIV>
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<DIV> </DIV>
<DIV>Best regards.</DIV></DIV>
<DIV> </DIV>
<DIV>XueXiang</DIV>
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<DIV><SPAN>xcao</SPAN></DIV></BODY></HTML>