<DIV>Hello again,</DIV> <DIV> </DIV> <DIV>I need to cut a 3D block around a subcortical object, say right hippocampus, in a brain MRI such that the center of gravity of the object should coincide with the center of the block, and the major axis of the object should be along one of the diagonals of the block. </DIV> <DIV> </DIV> <DIV>Thanks</DIV> <DIV>Shahab<BR></DIV><p> 
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