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Yet another broken DICOM file

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Mathieu Malaterre

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Jul 21, 2008, 1:10:15 PM7/21/08
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I was recently informed that people are starting to do multi-frame CT
Image Storage...well using 'CT Image Storage' as SOP Class :(

http://www.creatis.insa-lyon.fr/~jpr/CT_Image_Storage_multiframe.dcm

This file is totally broken, it contains a random number of 0 after
the Pixel Data element ... sigh

-Mathieu

David Clunie

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Jul 22, 2008, 5:44:56 AM7/22/08
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Hi Mathieu

There are a lot of other problems with this SCANCO micro-CT file:

% dciodvfy CT_Image_Storage_multiframe.dcm
Error - Invalid Value Representation - Pixel Data - VR = OB, Explicit VR, Bits Allocated = 16 exceeds 8
Error - Tags out of order - trailing garbage, wrong transfer syntax, or not valid DICOM
Error - Illegal root for UID - "0.2.16.756.5.23.2.1.3303.7.9.20080522150000.2696.0" in (0x0002,0x0003) Media Storage SOP Instance UID
Error - Illegal root for UID - "0.2.16.756.5.23.2.2.3303.7.9" in (0x0002,0x0012) Implementation Class UID
Error - Illegal root for UID - "0.2.16.756.5.23.2.1.3303.7.9.20080522150000.2696.0" in (0x0008,0x0018) SOP Instance UID
Error - Illegal root for UID - "0.2.16.756.5.23.2.3.3303.7.9" in (0x0020,0x000d) Study Instance UID
Error - Illegal root for UID - "0.2.16.756.5.23.2.4.3303.7.9" in (0x0020,0x000e) Series Instance UID
Error - Illegal root for UID - "0.2.16.756.5.23.2.5.3303.7.9" in (0x0020,0x0052) Frame of Reference UID
Warning - Missing attribute or value that would be needed to build DICOMDIR - Study Date
Warning - Missing attribute or value that would be needed to build DICOMDIR - Study Time
Warning - Missing attribute or value that would be needed to build DICOMDIR - Study ID
Error - Value invalid for this VR - (0x0008,0x103e) LO Series Description LO [0] = <nr_of_projections 750 sampletime_us 100000 site 20 mu_scaling 8192 nr_of_samples 1536 intensity_uA 1000 posx 636 posy 579 posz 0> - Length invalid for this VR = 128, expected <= 64
Warning - Value dubious for this VR - (0x0010,0x0010) PN Patient's Name PN [0] = <DDDDDD Mmmmmm 7123> - Retired Person Name form
Error - Dicom dataset contains invalid data values for Value Representations
Warning - Retired attribute - (0x0008,0x0000) UL Group Length
Warning - Retired attribute - (0x0010,0x0000) UL Group Length
Warning - Retired attribute - (0x0018,0x0000) UL Group Length
Warning - Retired attribute - (0x0020,0x0000) UL Group Length
Warning - Retired attribute - (0x0028,0x0000) UL Group Length
Warning - Dicom dataset contains retired attributes
CTImage
Error - Missing attribute Type 2C Conditional Element=<Laterality> Module=<GeneralSeries>
Warning - Value is zero for value 1 of attribute <Reconstruction Diameter>
Error - Unrecognized enumerated value <0x6e> for value 1 of attribute <Number of Frames>
Warning - Attribute is not present in standard DICOM IOD - (0x0028,0x0008) IS Number of Frames
Warning - Attribute is not present in standard DICOM IOD - (0x0028,0x0009) AT Frame Increment Pointer
Warning - Dicom dataset contains attributes not present in standard DICOM IOD - this is a Standard Extended SOP Class

David

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