[Insight-users] Bug in DicomSeriesReadSeriesWrite ??

[Yi-Yu Chou]

I noticed that If I comment out line:
  seriesWriter->SetMetaDataDictionaryArray(
                        reader->GetMetaDataDictionaryArray() )

,values in tag "ImagePositionPatient" were restored correctly
but "ImageOrientationPatient" was still wrong.

I also tried using the following code to restore tag "ImageOrientationPatient",
but not working....
the values were still saved as:  [1\0\0\0\1\0]

typedef itk::MetaDataDictionary   DictionaryType;
DictionaryType::ConstIterator tagItr = dict.Find("0020|0037");

typedef itk::MetaDataObject< std::string > MetaDataStringType;
MetaDataStringType::ConstPointer entryvalue = dynamic_cast<const
MetaDataStringType *>( tagItr->second.GetPointer() );

std::string tagvalue = entryvalue->GetMetaDataObjectValue();
itk::EncapsulateMetaData<std::string>(dict, "0020|0037", tagvalue );

Any further comments will be greatly appreciated !!

YIYU


On Thu, Aug 16, 2012 at 12:11 PM, Bradley Lowekamp
<blowekamp at mail.nih.gov>wrote:

> This sounds like the following unresolved issue:
>
> https://issues.itk.org/jira/browse/ITK-281
>
> Brad
>
> On Aug 16, 2012, at 12:04 PM, Johnson, Hans J wrote:
>
>   Are you reading into a 2D image?  A 2D image only stores 2D origin,
> spacing, etc.
>
>  If you want to preserve the 3rd dimension, you will have to read a
> single slice into a 3D image.
>
>  I am just guessing that this might be the problem.
>
>  Hans
> --
>  Hans J. Johnson, Ph.D.
> hans-johnson at uiowa.edu
> Assistant Professor of Psychiatry
> University of Iowa Carver College of Medicine
>  W278 GH, 200 Hawkins Drive
>  Iowa City, Iowa 52242
> Phone:  319-353-8587
>
>   From: Yi-Yu Chou <yiyu.chou at gmail.com>
> Date: Thursday, August 16, 2012 10:54 AM
> To: Xiaofeng Z <xf10036 at outlook.com>
> Cc: ITK Users <insight-users at itk.org>
> Subject: Re: [Insight-users] Bug in DicomSeriesReadSeriesWrite ??
>
>  yes. I tried on 2 different datasets, and I got same issues...
>
> On Thu, Aug 16, 2012 at 11:45 AM, Xiaofeng Z <xf10036 at outlook.com> wrote:
>
>>  REALLY?
>>
>>
>>
>>  ------------------------------
>> Date: Thu, 16 Aug 2012 10:40:26 -0400
>> From: yiyu.chou at gmail.com
>> To: insight-users at itk.org
>> Subject: [Insight-users] Bug in DicomSeriesReadSeriesWrite ??
>>
>>
>> Dear ITK users,
>>
>> I'm playing with DicomSeriesReadSeriesWrite, but I noticed that values in
>> tags
>> "ImagePositionPatient" and "ImageOrientationPatient" were not restored
>> correctly.
>> should be:
>> (0020,0032) DS [112.81570415012\-115.84296800997\110.38483167658]
>> (0020,0037) DS
>> [-0.0484719045791\0.99882454638764\2.34458564e-008\-0.1526400678013...
>> but I got:
>> (0020,0032) DS [112.81570415012\-115.84296800997\0]    <-- z-value is 0
>> for all slices
>> (0020,0037) DS [1\0\0\0\1\0]
>>
>> Is it a bug in DICOM IO ?
>> Any suggestions would be greatly appreciated !!!
>> Thanks in advance.
>> YIYU
>> ps. I'm running itk4.2
>>
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>
>
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> ========================================================
>
> Bradley Lowekamp
>
> Medical Science and Computing for
>
> Office of High Performance Computing and Communications
>
> National Library of Medicine
>
> blowekamp at mail.nih.gov
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