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Dear Biomech-L Readers,
Here are the answers to my question, which I posted on Biomech-L:
Thanks to those who helped me
Dan Hertig 17. Juni 1997
************************************************** **************************
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Dear Biomch-l,
My colleague asked me to post the following question, please reply to him:
Daniel.Hertig@Sulzer.CH
Hi Guys
We make Finite Element Analysis of bones using CT scans.
Now we'll get data from an ELSCINT TWIN ( an israelian CT manufacturer )
I think the data isn't written in Dicom3 format.
Does anybody know something about that type of scanner? I will need to read
it
and so far I don't have any experience with this format. Any information
would be helpful.
(BTW looking at David Clunies Homepage wasn't very useful)
Thank you
Daniel Hertig
************************************************** **************************
************************
Dear Mr. Daniel Hertig,
I am the medical application engineer of Materialise, a Belgian company
specialized in medical rapid prototyping.
We have developed a direct interface to go from 2D scanner images to RP
files or CAD packages.
As our interface has to deal with a variety of scanners, we are familiar
with Elscint and the CT twin type.
If the data are saved on 3 and 1/2 " floppies, we know the format very well
and have software to convert it.
If the data is saved on other media, e.g. optical disk, then we do not have
the conversion software yet.
However, if you would be interested to work further with Materialise in
future, we could write the conversion
software quite easily.
If you need any additional information, please do not hesitate to contact
me.
Kris Wouters
************************************************** **************************
************************
Daniel Hi
I have a lot of experience with trying to handle MRI data from ELSCINT
platforms.
If your CT is from the last few years, the data proccecing from it is done
on a ALGOTECK platfom
on a SILICON GRAPHICS workstation and the data is stored on a EOD (optical
disk).
The ALGOTECK workstation is saveing the data in DICOM 3 format but the
data is ALSO compressed with another compressing format which I'm not
familiar with .
If you want to be able to read the information what you need to do is to
define , in the ALGOTECK
workstation to save the data on the EOD (or any other output media) with the
EXPORT comand ,
and NOT with the regular SAVE command. This should make the workstation save
the data only as DICOM 3
format with no additional compresion.
In addition, the DICOM 3 format that the data is saved in is not exactly
standart so some of the DICOM view
applications will have a hard time viewing it , so you can get from the
Internet a lote of DICOM freeware
viewers and try them - some of them should do the work.
Note: if your data is from an old ELSCINT device, it is possible that the
data is stored in a PDP format and if so you have a big problem.
Last but not least, I assume you got your data from someone that purchesed
the CT from ELSCINT.
Therefor ELSCINT is obligated to sapport them and they can ask ELSCINT to
help them read the data.
Good luck
(and I'm sorry for the crancky english but i'm a bit pressed on time)
Arik
-------------------------------
bmesver@tx.technion.ac.il
************************************************** **************************
************************
Dear Daniel Hertig:
My name is Ariel Simkin, and I am in charge of the Biomechanics Laboratory
of the Department of
orthopaedics at the Hadassah University Hospital, Jerusalem.
I think I can give at least a partial answer to your question, because we
have at this hospital an ELSCINT
Twin Model CT system. I talked also to the Elscint serviceman about your
question.
1. Elscint have their own proprietory encoding scheme for CT images. The
file contains a header with
all the relevant details on the patient and the image, and a compressed
image. If Elscint will agree to
provide the owner of the CT with the detailed description of the format, you
could write a software that
could "translate" the images into dicom3 or any other format suitable for
your application.
2. Some owners of the Twin CT bought from Elscint a workstation, called
Omnipro, which enables many
manipulations with the CT images (3D images, sections in any orientation,
color mapping of densities etc).
This workstation enables also exporting of the images as dicom3 files. If
the CT at the hospital with which
you work has this workstation, there is no problem.
3. In any case, try to contact the agent of Elscint:
Swissray Medical AG
Tel:41419199051
Fax:4141919069
Talk to Mr Ueli Laupper, he should be able to help you.
If you need more information from here, contact me at:
RUSKIN@VMS.HUJI.AC.IL
Best luck
Ariel Simkin, PhD
Ariel Simkin, PhD
Biomechanics Laboratory
Department of Orthopaedic Surgery
Hadassah University Hospital
Kiryat Hadassah, Jerusalem, Israel 91120.
Tel: 972 2 6757127 Fax: 972 2 6434434
email: ruskin@vms.huji.ac.il
************************************************** **************************
************************
----------
From: duda@sirius.medizin.uni-ulm.de
Sent: Montag, 16. Juni 1997 09:38
To: Heidi Ploeg
Subject: Re: CT Scan Format
Hi Daniel,
we run into the same problem with ELSCINT TWIN. The company claims to have
dicom3 but most converters don't read it.
Fortunately, I found that nih-image has a dicom3 reader which is actually
able to read the elscint dicom file formats. With
nih-image you can convert into any other format.
Good luck,
Georg
PS Don't forget to export the elscint image file into dicom3. This option is
not necessarily configured.
--
__________________________________________________ ______________________
Dr. Ing. Georg Duda
Abteilung Unfallchirurgische Forschung & Biomechanik
Universitaet Ulm - Klinikum
Helmholtzstrasse 14
89 081 ULM
tel: +49.731.502.3494
fax: +49.731.502.3498
email: duda@sirius.medizin.uni-ulm.de
www: http://lyra.medizin.uni-ulm.de/ufb.html/staff/duda/duda.html
__________________________________________________ ______________________
Here are the answers to my question, which I posted on Biomech-L:
Thanks to those who helped me
Dan Hertig 17. Juni 1997
************************************************** **************************
************************
Dear Biomch-l,
My colleague asked me to post the following question, please reply to him:
Daniel.Hertig@Sulzer.CH
Hi Guys
We make Finite Element Analysis of bones using CT scans.
Now we'll get data from an ELSCINT TWIN ( an israelian CT manufacturer )
I think the data isn't written in Dicom3 format.
Does anybody know something about that type of scanner? I will need to read
it
and so far I don't have any experience with this format. Any information
would be helpful.
(BTW looking at David Clunies Homepage wasn't very useful)
Thank you
Daniel Hertig
************************************************** **************************
************************
Dear Mr. Daniel Hertig,
I am the medical application engineer of Materialise, a Belgian company
specialized in medical rapid prototyping.
We have developed a direct interface to go from 2D scanner images to RP
files or CAD packages.
As our interface has to deal with a variety of scanners, we are familiar
with Elscint and the CT twin type.
If the data are saved on 3 and 1/2 " floppies, we know the format very well
and have software to convert it.
If the data is saved on other media, e.g. optical disk, then we do not have
the conversion software yet.
However, if you would be interested to work further with Materialise in
future, we could write the conversion
software quite easily.
If you need any additional information, please do not hesitate to contact
me.
Kris Wouters
************************************************** **************************
************************
Daniel Hi
I have a lot of experience with trying to handle MRI data from ELSCINT
platforms.
If your CT is from the last few years, the data proccecing from it is done
on a ALGOTECK platfom
on a SILICON GRAPHICS workstation and the data is stored on a EOD (optical
disk).
The ALGOTECK workstation is saveing the data in DICOM 3 format but the
data is ALSO compressed with another compressing format which I'm not
familiar with .
If you want to be able to read the information what you need to do is to
define , in the ALGOTECK
workstation to save the data on the EOD (or any other output media) with the
EXPORT comand ,
and NOT with the regular SAVE command. This should make the workstation save
the data only as DICOM 3
format with no additional compresion.
In addition, the DICOM 3 format that the data is saved in is not exactly
standart so some of the DICOM view
applications will have a hard time viewing it , so you can get from the
Internet a lote of DICOM freeware
viewers and try them - some of them should do the work.
Note: if your data is from an old ELSCINT device, it is possible that the
data is stored in a PDP format and if so you have a big problem.
Last but not least, I assume you got your data from someone that purchesed
the CT from ELSCINT.
Therefor ELSCINT is obligated to sapport them and they can ask ELSCINT to
help them read the data.
Good luck
(and I'm sorry for the crancky english but i'm a bit pressed on time)
Arik
-------------------------------
bmesver@tx.technion.ac.il
************************************************** **************************
************************
Dear Daniel Hertig:
My name is Ariel Simkin, and I am in charge of the Biomechanics Laboratory
of the Department of
orthopaedics at the Hadassah University Hospital, Jerusalem.
I think I can give at least a partial answer to your question, because we
have at this hospital an ELSCINT
Twin Model CT system. I talked also to the Elscint serviceman about your
question.
1. Elscint have their own proprietory encoding scheme for CT images. The
file contains a header with
all the relevant details on the patient and the image, and a compressed
image. If Elscint will agree to
provide the owner of the CT with the detailed description of the format, you
could write a software that
could "translate" the images into dicom3 or any other format suitable for
your application.
2. Some owners of the Twin CT bought from Elscint a workstation, called
Omnipro, which enables many
manipulations with the CT images (3D images, sections in any orientation,
color mapping of densities etc).
This workstation enables also exporting of the images as dicom3 files. If
the CT at the hospital with which
you work has this workstation, there is no problem.
3. In any case, try to contact the agent of Elscint:
Swissray Medical AG
Tel:41419199051
Fax:4141919069
Talk to Mr Ueli Laupper, he should be able to help you.
If you need more information from here, contact me at:
RUSKIN@VMS.HUJI.AC.IL
Best luck
Ariel Simkin, PhD
Ariel Simkin, PhD
Biomechanics Laboratory
Department of Orthopaedic Surgery
Hadassah University Hospital
Kiryat Hadassah, Jerusalem, Israel 91120.
Tel: 972 2 6757127 Fax: 972 2 6434434
email: ruskin@vms.huji.ac.il
************************************************** **************************
************************
----------
From: duda@sirius.medizin.uni-ulm.de
Sent: Montag, 16. Juni 1997 09:38
To: Heidi Ploeg
Subject: Re: CT Scan Format
Hi Daniel,
we run into the same problem with ELSCINT TWIN. The company claims to have
dicom3 but most converters don't read it.
Fortunately, I found that nih-image has a dicom3 reader which is actually
able to read the elscint dicom file formats. With
nih-image you can convert into any other format.
Good luck,
Georg
PS Don't forget to export the elscint image file into dicom3. This option is
not necessarily configured.
--
__________________________________________________ ______________________
Dr. Ing. Georg Duda
Abteilung Unfallchirurgische Forschung & Biomechanik
Universitaet Ulm - Klinikum
Helmholtzstrasse 14
89 081 ULM
tel: +49.731.502.3494
fax: +49.731.502.3498
email: duda@sirius.medizin.uni-ulm.de
www: http://lyra.medizin.uni-ulm.de/ufb.html/staff/duda/duda.html
__________________________________________________ ______________________