[Insight-users] Rv: how to read multiple volumen from EnhancedMRImageStorage

[José]

Hello, I'm sending again the following message removing the attached file in order to pass the filter in size. I can post the file mentioned in this email if needed.


The question asked is bellow ...

----- Mensaje reenviado -----
De: yoyi1970 at yahoo.es
Para: "insight-users at itk.org" <insight-users at itk.org> 
Enviado: Jueves 7 de junio de 2012 15:26
Asunto: how to read multiple volumen from EnhancedMRImageStorage
 

Hello, I have dicom file which is of type EnhancedMRImageStorage. This dicom file contains 2 4D images one of type [ORIGINAL\PRIMARY\M_FFE\M\FFE] an the other of type [ORIGINAL\PRIMARY\VELOCITY MAP\P\PCA]. I'm trying to use ImageFileReader + GDCMImageIO but as a result only a big 3D volume is obtained.

Attached is a file containing the output of the tags contained inside the DICOM.

One difficulty I have found is that the volumes have different rescale parameters, 


* frame of type ORIGINAL\PRIMARY\M_FFE\M\FFE has:

          (0028,1052) DS [0]                                      #   2, 1 RescaleIntercept
          (0028,1053) DS [1.75555555555555]                       #  16, 1 RescaleSlope
          (0028,1054) LO [normalized]                             #  10, 1 RescaleType

* frame of type ORIGINAL\PRIMARY\VELOCITY MAP\P\PCA has:

        (0028,1052) DS [-200]                                   #   4, 1 RescaleIntercept
        (0028,1053) DS [0.09768009768009]                       #  16, 1 RescaleSlope
        (0028,1054) LO [cm/sec]                                 #   6, 1 RescaleType


Another difficulty is related to the order of the slices within the pixel data, because PHILIPS has placed the slices first changing in time then in z order. For the example attached, we have 25 time steps and this means that the first 25 slices in the pixel data correspond to the first slice of each 2 3D volumen. Is it possible to read this kind of data using ITK? If not any recommendation of how to read to create ITK images from it?

Thanks in advance and best regards,
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