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From: alok patra on 21 Dec 2009 01:17
"Ashwath Sundaresan" <asu33(a)student.canterbury.ac.nz> wrote in message <g3s43c$h2q$1(a)fred.mathworks.com>...
> btw...the RescaleIntercept is 0 and the RescaleSlope is 1.
> THe pixels range from -3740 to 11617
>
>
>
> "Ashwath Sundaresan" <asu33(a)student.canterbury.ac.nz> wrote
> in message <g3s3ej$t21$1(a)fred.mathworks.com>...
> > I have the following DICOM. Firstly I would like to know
> if
> > the slice thickness units are in mm . Also how do I
> convert
> > pixel values to Hounsfield units (or CT number)
> >
> > Cheers
> > Ashwath
>
From: omegayen on 21 Dec 2009 01:32
usually CT numbers are from -1000 to around + 3000 so you will have to rescale somehow but this cant be done linearly if your range is that large.

"Ashwath Sundaresan" <asu33(a)student.canterbury.ac.nz> wrote in message <g3s43c$h2q$1(a)fred.mathworks.com>...
> btw...the RescaleIntercept is 0 and the RescaleSlope is 1.
> THe pixels range from -3740 to 11617
>
>
>
> "Ashwath Sundaresan" <asu33(a)student.canterbury.ac.nz> wrote
> in message <g3s3ej$t21$1(a)fred.mathworks.com>...
> > I have the following DICOM. Firstly I would like to know
> if
> > the slice thickness units are in mm . Also how do I
> convert
> > pixel values to Hounsfield units (or CT number)
> >
> > Cheers
> > Ashwath
>
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