We have run across an issue where our MRI analysis application will load/display/analize data if read directly from the CD, but if the data is imported into Conquest (v1.4.14 or v1.4.15) the application displays blank images. We have been informed by the vender that the issue is that the Conquest version does not include a length value for (0088,0200) and that the app does not know "where" to find the pixel data.
I have used the Offis dcmdump app to produce the following:
Image data from CD: (not the entire sequence is not included here)
(0088,0200) SQ (Sequence with explicit length #=1) # 5054, 1 IconImageSequence
(fffe,e000) na (Item with explicit length #=15) # 5046, 1 Item
(0028,0002) US 1 # 2, 1 SamplesPerPixel
(0028,0004) CS [PALETTE COLOR] # 14, 1 PhotometricInterpretation
(0028,0010) US 64 # 2, 1 Rows
(0028,0011) US 64 # 2, 1 Columns
(0028,0100) US 8 # 2, 1 BitsAllocated
(0028,0101) US 8 # 2, 1 BitsStored
(0028,0102) US 7 # 2, 1 HighBit
(0028,0103) US 0 # 2, 1 PixelRepresentation
(0028,1101) US 256\0\8 # 6, 3 RedPaletteColorLookupTableDescriptor
(0028,1102) US 256\0\8 # 6, 3 GreenPaletteColorLookupTableDescriptor
(0028,1103) US 256\0\8 # 6, 3 BluePaletteColorLookupTableDescriptor
Image data from Conquest v1.4.15:
(0088,0200) SQ (Sequence with undefined length #=1) # u/l, 1 IconImageSequence
(fffe,e000) na (Item with undefined length #=15) # u/l, 1 Item
(0028,0002) US 1 # 2, 1 SamplesPerPixel
(0028,0004) CS [PALETTE COLOR] # 14, 1 PhotometricInterpretation
(0028,0010) US 64 # 2, 1 Rows
(0028,0011) US 64 # 2, 1 Columns
(0028,0100) US 8 # 2, 1 BitsAllocated
(0028,0101) US 8 # 2, 1 BitsStored
(0028,0102) US 7 # 2, 1 HighBit
(0028,0103) US 0 # 2, 1 PixelRepresentation
(0028,1101) US 256\0\8 # 6, 3 RedPaletteColorLookupTableDescriptor
(0028,1102) US 256\0\8 # 6, 3 GreenPaletteColorLookupTableDescriptor
(0028,1103) US 256\0\8 # 6, 3 BluePaletteColorLookupTableDescriptor
Our work around for the moment is to use an import converter to remove the entire (0088,0200) VR and the application will properly load and display the image sets.
Any thoughts?
Thanks you,
Scott