[vtkusers] Fwd: Re: RE: Create an approximate cross-section of a RT ROI

[Xiaofeng Z]

Lars,

 

Is there any noticable lagging at all?

 

Thanks!
Xiaofeng


 
> Date: Tue, 4 May 2010 16:34:24 +0200
> From: lars-friedrich at gmx.net
> To: vtkusers at vtk.org
> Subject: [vtkusers] Fwd: Re: RE: Create an approximate cross-section of a RT ROI
> 
> 
> Xiaofeng,
> 
> I use a quite comparable approach for the same purpose as you, I guess: I cut multiple (!) 3D RT structures in 3 orthogonal planes simultaneously and cut the referenced RT volume (CT) at the same time. The structures include quite complex anatomy such as the skeletons with many vertices.
> In my implementation (and that is nothing more than I wrote in the morning) this works 'very' interactively. For me that is real-time enough ;)
> 
> regards,
> 
> lars
> 
> 
> -------- Original-Nachricht --------
> > Datum: Tue, 4 May 2010 09:37:22 -0400
> > Von: Xiaofeng Z <xf10036 at hotmail.com>
> > An: lars-friedrich at gmx.net
> > Betreff: RE: [vtkusers] Create an approximate cross-section of a RT ROI
> 
> > 
> > lars,
> > 
> > 
> > 
> > I consider the method you described a more accurate way to do it. 
> > Unfortunately, vtkCutter is too slow to be used in real time.
> > 
> > 
> > 
> > Thanks for your reply though!
> > 
> > Xiaofeng
> > 
> > 
> > 
> > > Date: Tue, 4 May 2010 07:55:33 +0200
> > > From: lars-friedrich at gmx.net
> > > Subject: Re: [vtkusers] Create an approximate cross-section of a RT ROI
> > > To: xf10036 at hotmail.com; vtkusers at vtk.org
> > > 
> > > Hi Xiaofeng,
> > > 
> > > just an idea:
> > > - produce a surface from the axial contours by using
> > vtkVoxelContoursToSurfaceFilter (which works quite well provided your source contours are
> > evenly distributed)
> > > - take vtkCutter(s) with plane implicit functions that define your new
> > contouring orientation(s) and cut the volume to produce new contours from
> > that directions
> > > 
> > > HTH,
> > > lars
> > > 
> > > 
> > > -------- Original-Nachricht --------
> > > > Datum: Mon, 3 May 2010 20:12:22 -0400
> > > > Von: Xiaofeng Z <xf10036 at hotmail.com>
> > > > An: VTK <vtkusers at vtk.org>
> > > > Betreff: [vtkusers] Create an approximate cross-section of a RT ROI
> > > 
> > > > 
> > > > Hi vtkUsers,
> > > > 
> > > > I have a set of contours in axial orientation representing a ROI. I
> > need
> > > > to sketch the ROI in coronal and sagittal plane, by connection the
> > points
> > > > made from the intersection of the contours and the cutting plane. Is
> > there
> > > > a function to do that in vtk or in ITK?
> > > > 
> > > > I know the result is not "precise" in a sense that the contours make
> > this
> > > > way is not always consistent between themselves. But it seemed to be
> > the
> > > > only viable way to sketch a ROI in a multi-planar rendering in real
> > time.
> > > > 
> > > > Many thanks!
> > > > Xiaofeng
> > > > 
> > > > 
> > > > 
> > > > 
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