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<p class=MsoNormal>Hi Everyone;<o:p></o:p></p>
<p class=MsoNormal>I’m developing a DICOM viewer using Java and VTK and i
need to show the pixel and hounsfield unit value of a clicked point. I’
ve done the exactly same thing that Mark Wyszomierski described here: <a
href="http://devsample.org/index.php?option=com_content&task=view&id=48&Itemid=27">http://devsample.org/index.php?option=com_content&task=view&id=48&Itemid=27</a>
and i get the correct pixel value(at least i hope so) but i couldn’t
convert it to hounsfield unit using this formula: hu= pixel*slope+intercept .
Bone value must be over +400 hu, but i get negative values. Actually i have
implemented the MPR with vtkImagePlaneWidget(s) too and it shows the real
hounsfield unit value of the clicked point and for example the bone value
changes while dragging the mouse on a bone but at my implemantation it always
show the same value (pixel value is 255 and hu is -700 or something like this).
How can i convert the pixel value to hounsfield unit or how can i get the real
scalar values of a clicked point of CT data set? <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Yours sincerely;<o:p></o:p></p>
<p class=MsoNormal>Sercani…<o:p></o:p></p>
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