[MINC-users] Dicom to Minc converter for Phillips ?

[Kuan H. Kho]

Hi Roger,

I think you're right about the slice info: that's very important to
most imagers. As we make whole 3D scans instead of slices (both
structural and functional images), the simple rawtominc conversion
suffices. But I indeed did not realize that there may be a bunch of
people that indeed do need that information!

About a rectominc tool: I can work with the rawtominc, but I heard
that on the newest Phillips scanner software (release ..? I can't keep
count anymore), the PAR/REC format changed a bit. I could be wrong,
but one may have to check that.

Best,
Kuan
--
Kuan H. Kho, MD

Depts. of Psychiatry & Neurosurgery, G03.124
University Medical Center Utrecht
Heidelberglaan 100
P.O.Box 85500
3508 GA Utrecht
The Netherlands

P +31-30-2507969/2507953
F +31-30-2542100

E k.h.kho_'at'_azu.nl

On Wed, 23 Mar 2005 08:50:52 +0100, Roger Luechinger
<luechinger@biomed.ee.ethz.ch> wrote:
> Hi,
> 
> Sorry for the delayed contribution to this topic.
> 
> 
> It's true that using rawtominc will convert the rec-File (raw-Format from
> Philips) easily to minc. However the major problem are the geometry infos
> in the par-File contains the following infos for each slice:
> .    Angulation midslice(ap,fh,rl)[degr]:   .17     -1.62   -24.5
> .    Off Centre midslice(ap,fh,rl) [mm] :   4.94    16.44   .97
> (here the info for the stack), whereas the minc-Files wants to have the
> direction cosines for the 3 directions.
> And this conversion is not trivial. However for most applications the
> orientations are not of such an importance.
> I started with a perlscript using rawtominc to make a cnoversion of the
> rec-files to minc. However the orientation part is not yet correctly
> implemented and since there was at our group no need for this part I stop
> to implemented it.If there is some interest in such a conversion tool I
> could implement it. In the meantime I had to perform the coordination
> transformation in the other direction for an other project. (Philips
> switch in the database on the scanner from the angulations along the ap,
> fh, rl direction to the cosines like used in the minc-Files.) Therefore it
> would even be the easiest just to take the infos directly from the
> database and create directly the minc-File. However such an tool would
> only be of benefit for sites with deeper knowledge of the scanner.
> 
> If there is real interest in a conversion tool rec2minc, please let me know.
> 
> Roger
> 
> --
>                                ^   ^
>                                o   o
> ------------------------OOO----(_)----OOO---------------------
> Dr. Roger Luechinger    E-Mail: luechinger@biomed.ee.ethz.ch
> Universitaetsspital
> MR-Zentrum VMR30      www/PGP: http://www.mr.ethz.ch/~rluchin/
> CH-8091 Zuerich
> Tel: ++41 1 255 30 64     Fax: ++41 1 255 45 06
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