lesniak@mchtr.pw.edu.pl wrote:

> I am trying to understand the exact meaning of the "raw DICOM" format
> used by GE in the EchoPack software. Do the data stored in this format
> contain only imagas not compresed to any format such as JPG (and for
> this reason called raw)

As far as I know, an 'uncompressed image', is just called 'an image'.
The transfert synatx will tell you if it's Explicit VR Little Endian,
Implicit Little Endian, etc.

What's called 'Raw Data' is generally the Data, as adquired by the
hardware, before reconstruction.

or is it possible (using configuration options)
> to store real raw data (before the reconstruction/image formation) such
> as RF (hardly probable) or so called baseband or envelope data?

or K-space, as well.
When you *do* need them, it's very hard to get them (constructors don't
like very much other people to play with them ...)
If you get them, you need to know the data structure (not the 'dicom
part' structure, that's like other Dicom headers) if you want to deal
with them.

Jean-Pierre

> Thanks,
> Beata
>

schrieb im Newsbeitrag
news:1118393087.608062.176280@g47g2000cwa.googlegr oups.com...

>I am trying to understand the exact meaning of the "raw DICOM" format
> used by GE in the EchoPack software. Do the data stored in this format
> contain only imagas not compresed to any format such as JPG (and for
> this reason called raw) or is it possible (using configuration options)
> to store real raw data (before the reconstruction/image formation) such
> as RF (hardly probable) or so called baseband or envelope data?

Beata,

the "raw DICOM" format transfers "private tags" which contains
raw data direct from the scanner/probe to the files or to the archive.

The Format is a internal format from GE. For example on a
Vivid7 its possible to save/export raw-data within a standard
dicom file. These raw-data are real raw-data direct from the
scanner. It offers the possibility to take some measurements
AFTER the acquisition.

greets
funke