[Insight-developers] DICOM 0008:0008

[kent williams]

ITK bases orientation on the direction cosines, which would make this flag
irrelevant with respect to orientation.   It might be useful to know the
original scan direction, but that would require all scanners to set this
flag with an accurate value. I have little confidence in that being the
case.

I would also assume almost all applications with ITK would start with images
of known provenance, if something like the original scan direction was a
crucial datum. It's not the roadside is littered with MRI scans, that
applications have to approach like a detective to infer where they came from
and how they were produced.



On 4/9/08 7:59 AM, "Mathieu Malaterre" <mathieu.malaterre at gmail.com> wrote:

> On Wed, Apr 9, 2008 at 2:22 PM, Miller, James V (GE, Research)
> <millerjv at crd.ge.com> wrote:
>> 
>> 
>> 
>> The DICOM Image Type (0008:0008) is usually something like:
>> ORIGINAL\PRIMARY\AXIAL when DICOM files are coming off a scanner.  ITK
>> generated files have the Image Type as DERIVED\PRIMARY.  Should the Image
>> Type be DERIVED\PRIMARY\AXIAL when appropriate?
> 
> Hi Jim,
> 
>   I am guessing you are talking about a CT Image Storage DICOM object, right ?
>   AFAIK Value #3 of Image Type is optional, so it should not be needed
> (only the first 2 are required). As a side note there is no way for
> the ITK ImageIO to detect that the image has not been modified
> (resliced), so I do not believe we should keep the 'AXIAL' Image Type,
> correct ?
> 
> 
> 2 cents,