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<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Hello,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
am experiencing a problem with the ImageSeriesReader when trying to load DICOM
data consisting of one file only. I am suspecting that it is a bug. When the
dataset consists of multiple files the member variable m_NumberOfDimensionsInImage
is decreased by one (line 160 of itkImageSeriesReader.txx, using itk 3.12).
When there is only one file the following code block is executed, the result of
which gives m_NumberOfDimensionsInImage the value 3:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>if
(m_FileNames.size() == 1)<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
{<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
// ----------------------------<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
// there is only one file need to copy all of it's meta data<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
spacing = reader->GetOutput()->GetSpacing();<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
origin = reader->GetOutput()->GetOrigin();<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
direction = reader->GetOutput()->GetDirection();<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
largestRegion = reader->GetOutput()->GetLargestPossibleRegion();<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
m_NumberOfDimensionsInImage =
reader->GetImageIO()->GetNumberOfDimensions();<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>}<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Later
in Generate data m_NumberOfDimensionsInImage is used as an index to access the
last element of sliceStartIndex:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>sliceStartIndex[m_NumberOfDimensionsInImage]
= i;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<pre><span lang=EN-US style='font-family:"Arial","sans-serif"'>sliceStartIndex has length 3 so it writes outside the bounds of the array, resulting in a crash, </span><span
lang=EN-US style='font-family:"Arial","sans-serif"'>because the stack around the variable<o:p></o:p></span></pre>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>sliceStartIndex[]
is corrupted.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Is this a known bug/does
anybody else ever experienced the same problem? The solution to this problem could
be to set m_NumberOfDimensionsInImage =
reader->GetImageIO()->GetNumberOfDimensions() – 1<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Kind regards,<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thomas <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
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