AW: [Insight-users] No DICOM magic number found, but file appears
to be DICOM.
Luis Ibanez
luis . ibanez at kitware . com
Wed, 01 Oct 2003 16:40:17 -0400
Hi Thimmaiah,
Good news and bad news.
First, here are some the facts:
1) There are two DICOM readers in ITK
- DICOMImageIO
- DICOMImageIO2
2) DICOMImageIO reads your images without complaints.
This is the default reader registered in the IO
factories and therefore is the one used in the
demo application "ImageViewer".
3) DICOMImageIO2 does a more formal testing and
prints the message:
> No DICOM magic number found, but file appears to be DICOM.
> Proceeding without caution.
but still reads the image.
This is the reader used in "ApplicationModel"
and it is able to read the 3 slices and
create a volume with them.
4) VolView reads your DICOM images without
complaints, and display them correctly.
5) MRIConvert reject your images because they
are missing the Preamble.
"Preamble missing. Unable to read file"
---------------------------------------
So,
The good news is:
You can read your DICOM slices IFF you use
the DICOMImageIO instead of DICOMImageIO2.
So, when you configure the ImageSeriesReader,
please provide a DICOMImageIO, instead of a
DICOMImageIO2 object.
The bad news is:
your DICOM files are suspicious (let's say
sloppy), and you may want to complaint with
your image provider because they don't fully
satisfy the DICOM standard.
Regards,
Luis
-----------------------------------------
Thimmaiah, Sandhya wrote:
> Hi Luis,
> I tried using Image Viewer and the files open without any message but when I
> try to read these series of DICOM images it is giving me these messages. I
> am trying to read the same 3 images. I am getting this message at this line
> in itkDICOMSeriesFileNamesTest.cxx.
> std::vector<std::string> seriesUIDs;
> std::cout << "Error"<< std::endl;
> seriesUIDs = fit->GetSeriesUIDs();
> std::cout << "Error1"<< std::endl;
>
> The output what I get is below
> C:\ITK\BitkDICOMSeriesFileNamesTest\Release>itkDICOMSeriesFileNamesTest.exe
> DICOM3
> Error
> No DICOM magic number found, but file appears to be DICOM.
> Proceeding without caution.
> No DICOM magic number found, but file appears to be DICOM.
> Proceeding without caution.
> No DICOM magic number found, but file appears to be DICOM.
> Proceeding without caution.
> Error1
> Series: 1.3.12.2.1107.5.2.4.7399.20030828092545000003
> Files sorted by image number
> File:
> DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003024
> File:
> DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003025
> File:
> DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003026
> Files sorted by slice location
> File:
> DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003024
> File:
> DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003025
> File:
> DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003026
> Files sorted by ImagePositionPatient
> File:
> DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003026
> File:
> DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003025
> File:
> DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003024
>
> Let me know what I can do.DICOM3 folder contains 3 DICOM images that I had
> sent you before nothing else. Thank you
>
>
>
> -----Original Message-----
> From: Luis Ibanez [mailto:luis . ibanez at kitware . com]
> Sent: Friday, September 26, 2003 4:44 PM
> To: Thimmaiah, Sandhya
> Cc: Insight-users at public . kitware . com
> Subject: Re: AW: [Insight-users] No DICOM magic number found, but file
> appears to be DICOM.
>
>
>
> Hi Thimmaiah,
>
> Thanks for sending the DICOM files that are producing
> read errors.
>
> I put them in a single directory and they work fine
> for reading. The slices can be read individually with
> the ImageViewer application, and the three together
> can be read as a volume using the DICOMImageSeriesReader.
>
>
> It looks like you have in the same directory other
> files that are not DICOM slices. The DICOMImageSeries
> reader may be attempting to read *ALL* the files in
> the directory and having trouble with the ones that
> are not real DICOM slices.
>
>
> Please verify that the directory *only* contains DICOM
> files.
>
>
>
> Thanks
>
>
> Luis
>
>
> ---------------------------
> Thimmaiah, Sandhya wrote:
>
>>Hi Luis,
>>I don't have any ftp to post but I am sending 3 zipped Dicom files. When I
>>run itkDICOMImageSeriesTest with these files I get the following message.
>>Hope you can help us out.Also I wanted to know how I can get the patients
>>data(name, age.....). Thank you
>>
>>C:\ITK\BDICOMSeries\Release>itkDICOMImageSeriesTest.exe DICOM3 0
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>DICOMSeriesFileNames (00224788)
>> RTTI typeinfo: class itk::DICOMSeriesFileNames
>> Reference Count: 2
>> Modified Time: 4
>> Debug: Off
>> Observers:
>> none
>> Directory: DICOM3
>> File name sorting order: SortByImagePositionPatient
>> FileNames[0]: DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003026
>> FileNames[1]: DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003025
>> FileNames[2]: DICOM3/1.3.12.2.1107.5.2.4.7399.20030828092545000003024
>>
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>No DICOM magic number found, but file appears to be DICOM.
>>Proceeding without caution.
>>Image (002274B0)
>> RTTI typeinfo: class itk::Image<unsigned short,3>
>> Reference Count: 1
>> Modified Time: 67
>> Debug: Off
>> Observers:
>> none
>> Source: (00225520)
>> Source output index: 0
>> Release Data: Off
>> Data Released: False
>> Global Release Data: Off
>> PipelineMTime: 16
>> UpdateTime: 155
>> LastRequestedRegionWasOutsideOfTheBufferedRegion: 1
>> LargestPossibleRegion:
>> Dimension: 3
>> Index: [0, 0, 0]
>> Size: [256, 256, 3]
>> BufferedRegion:
>> Dimension: 3
>> Index: [0, 0, 0]
>> Size: [256, 256, 3]
>> RequestedRegion:
>> Dimension: 3
>> Index: [0, 0, 0]
>> Size: [256, 256, 3]
>> Origin: [-135.445, -138.381, -2.3]
>> Spacing: [1.07422, 1.07422, 2]
>> PixelContainer: ImportImageContainer (002275A0)
>> RTTI typeinfo: class itk::ImportImageContainer<unsigned long,unsigned
>>short>
>>
>> Reference Count: 2
>> Modified Time: 68
>> Debug: Off
>> Observers:
>> none
>> Pointer: 002275D0
>> Container manages memory: true
>> Size: 196608
>> Capacity: 196608
>>
>>-----Original Message-----
>>From: Luis Ibanez [mailto:luis . ibanez at kitware . com]
>>Sent: Thursday, September 25, 2003 12:02 PM
>>To: jiang
>>Cc: Thimmaiah, Sandhya; ITK
>>Subject: Re: AW: [Insight-users] Create 3D image data by a series of 2D
>>dicom files
>>
>>
>>
>>
>>Thimmaiah, Jiang,
>>
>>Could any one of you post somewhere one of the DICOM
>>slices that is giving you trouble for reading ?
>>(it could be in an FTP site or in a Web page...)
>>
>>That will give us a chance to try reading it and figure
>>out what is special about these images.
>>
>>The DICOM implementation in ITK is not suppossed to be
>>bullet proof, it is just covering a reasonable large
>>set of DICOM files.
>>
>>Did anyone of you tried to read this files with MRIConvert ?
>>
>>
>>Thanks
>>
>>
>> Luis
>>
>>
>>
>>------------------------
>>jiang wrote:
>>
>>
>>>Hi, Thimmaiah,
>>>I also saw your message. It is a pity that I didn't yet solve this
>>
>>problem.
>>
>>
>>>I am waiting for someone might answer your question. It is also helpful
>>
>>for
>>
>>
>>>me.
>>>
>>>Good luch!
>>>
>>>
>>>
>>>-----Ursprüngliche Nachricht-----
>>>Von: Thimmaiah, Sandhya [mailto:sthimmaiah at neurosurgery . wayne . edu]
>>>Gesendet: Mittwoch, 24. September 2003 22:46
>>>An: 'jiang'
>>>Betreff: RE: [Insight-users] Create 3D image data by a series of 2D
>>>dicom files
>>>
>>>
>>>Hi Jiang,
>>>I saw that you have got same messages as I am getting now....
>>>No DICOM magic number found, but file appears to be DICOM.
>>>Proceeding without caution.
>>>I wanted to know if you were able to fix it. I would really appreciate if
>>>you can reply me. Thank you
>>>
>>>-----Original Message-----
>>>From: jiang [mailto:jiang at TI . Uni-Trier . DE]
>>>Sent: Friday, September 19, 2003 12:19 PM
>>>To: Lorensen, William E (Research)
>>>Cc: ITK
>>>Subject: AW: [Insight-users] Create 3D image data by a series of 2D
>>>dicom files
>>>
>>>
>>>Hi, Bill,
>>>I tried your code to read the data that I sent you. However, it always
>>>doesn't work. The message printed out are:
>>>No DICOM magic number found, but file appears to be DICOM.
>>>Proceeding without caution.
>>>No DICOM magic number found, but file appears to be DICOM.
>>>Proceeding without caution.
>>>No DICOM magic number found, but file appears to be DICOM.
>>>Proceeding without caution.
>>>......
>>>DICOMSeriesFileNames (010B2270)
>>> RTTI typeinfo: class itk::DICOMSeriesFileNames
>>> Reference Count: 2
>>> Modified Time: 4
>>> Debug: Off
>>> Observers:
>>> none
>>> Directory: C:\jcy\Qt\TestApp\DICOMSeries\Series
>>> File name sorting order: SortByImagePositionPatient
>>> FileNames[0]:
>>>C:\jcy\Qt\TestApp\DICOMSeries\Series/1.3.12.2.1107.5.2.1.5603.20
>>>030731093845884002024
>>> FileNames[1]:
>>>C:\jcy\Qt\TestApp\DICOMSeries\Series/1.3.12.2.1107.5.2.1.5603.20
>>>030731093845884002023
>>> FileNames[2]:
>>>C:\jcy\Qt\TestApp\DICOMSeries\Series/1.3.12.2.1107.5.2.1.5603.20
>>>030731093845884002022
>>>......
>>>
>>>Do you get the same messages when you run itkDICOMImageSeriesTest.cxx?
>>>
>>>
>>>
>>>Thank you for your help.
>>>
>>>
>>>Chunyan
>>>
>>>_______________________________________________
>>>Insight-users mailing list
>>>Insight-users at itk . org
>>>http://www . itk . org/mailman/listinfo/insight-users
>>>
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>>>http://www . itk . org/mailman/listinfo/insight-users
>>>
>>
>>
>>
>>
>>
>
>
>
>
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