gcsharp
(Greg Sharp)
6
Hi Reza,
Sure. You would need a unix shell of some sort, and dcmtk installed. Then you do something like this:
dcmdump file.dcm | grep ControlPoint3DPosition | uniq | sed -e ‘s/[^[//’ | sed -e 's/].//’
Andras already answered the second question here. 
Peace,
Greg