[Insight-developers] 4D Dicom Data

[Miller, James V (Research)]

Vince, 

We should make GDCMImageIO capable of loading a 4D dataset.  The challenge
will be determine how to group the data for the 4th dimension.  A number of
vendors capture/record 4D DICOM data.  But the tag to distinguish the 
4th dimension is different per vendor and per application.

Jim



-----Original Message-----
From: insight-developers-bounces+millerjv=crd.ge.com at itk.org
[mailto:insight-developers-bounces+millerjv=crd.ge.com at itk.org]On Behalf
Of Vincent A. Magnotta
Sent: Saturday, December 03, 2005 6:08 PM
To: Insight Developers List
Subject: [Insight-developers] 4D Dicom Data


I am trying to use the GDCMImageIO to load a series of DTI data.
Currently I load this as a 3D dataset and sort the images once loaded to
generate 4D dataset. I would prefer to use GDCMImageIO to generate a 4D
dataset upon loading. When the images are loaded as 3D data, the image
size is 128x128x768. When loaded as 4D data, the image size is
128x128x768x1. In both cases, the GDCMSeriesFileNames reports an error
that the image position is not unique. Shouldn't GDCMImageIO be able to
load the 4D data with each time point or in this case Bvalue and
direction as the fourth dimension?

In both the 3D and 4D cases I have turned SetUseSeriesDetails( false ).
I can use  SetUseSeriesDetails( true ) and create a 4D image from a
series of 3D images. However, the order of the SeriesUids is appears to
be alphabetical instead of based on the acquisition order.

Vince
 

-- 
Assistant Professor
Department of Radiology
0453-D JCP
200 Hawkins Drive
Iowa City, IA 52242
E-mail: vincent-magnotta at uiowa.edu
Phone: 319-356-8255
Fax: 319-353-6275
Website: http://www.radiology.uiowa.edu

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