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Hi,<br>
<br>
I think they are looking for official sample files. Sames as with
other different DICOM supplements you can easyly find official
sample finds, and compare the objects you output to them, I haven't
seen any for supplement 145.<br>
<br>
Supplement 145 docs are kind of clear, but there are different ways
of interpreting them, and some ambivalences or lack of information,
that makes a bit difficult being sure you're implementing a correct
format. Even within our own team we've had discussions regarding the
meaning of some paragraphs. That's the problem you've found
regarding the orientation.<br>
<br>
Therefore, neither yours nor, lets say, Leica images can be used as
a sample, it has to be 'official nema' images. And I still haven't
found one of those.<br>
<br>
Thanks<br>
<br>
<div class="moz-cite-prefix">El 05/08/14 10:20, John Stevenson-Hoare
escribió:<br>
</div>
<blockquote
cite="mid:3F7B3A750517124893CF96FCDAAE6B690B531ADA@Exchange.ffei.local"
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<div class="WordSection1">
<p class="MsoNormal">Hi,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I have created a utility that provides a
capability to convert from many vendor formats to the DICOM
(supplement 145 now embodied in standard) media file format
for VL Whole Slide Microscopy Images.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">The utility is for Windows only, and is
available as a GUI and command line program. I have made
available both the 32-bit (x86) and 64-bit (x64) variants at:</p>
<p class="MsoNormal"> </p>
<p class="MsoListParagraph" style="text-indent:-18.0pt"><span
style="font-family:Symbol"><span style="">·<span
style="font:7.0pt "Times New Roman"">
</span></span></span><a moz-do-not-send="true"
href="https://s3-eu-west-1.amazonaws.com/uk-co-ffei-sierra/Downloads/SierraConverter_Setup_x86.exe">https://s3-eu-west-1.amazonaws.com/uk-co-ffei-sierra/Downloads/SierraConverter_Setup_x86.exe</a></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt"><span
style="font-family:Symbol"><span style="">·<span
style="font:7.0pt "Times New Roman"">
</span></span></span><a moz-do-not-send="true"
href="https://s3-eu-west-1.amazonaws.com/uk-co-ffei-sierra/Downloads/SierraConverter_Setup_x64.exe">https://s3-eu-west-1.amazonaws.com/uk-co-ffei-sierra/Downloads/SierraConverter_Setup_x64.exe</a></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">You may also need to install the Microsoft
Visual C++ 2010 runtime libraries as these are not currently
installed with the application.</p>
<p class="MsoNormal"> </p>
<p class="MsoListParagraph" style="text-indent:-18.0pt"><span
style="font-family:Symbol"><span style="">·<span
style="font:7.0pt "Times New Roman"">
</span></span></span><a moz-do-not-send="true"
href="http://www.microsoft.com/en-gb/download/details.aspx?id=8328">http://www.microsoft.com/en-gb/download/details.aspx?id=8328</a>
(x86)</p>
<p class="MsoListParagraph" style="text-indent:-18.0pt"><span
style="font-family:Symbol"><span style="">·<span
style="font:7.0pt "Times New Roman"">
</span></span></span><a moz-do-not-send="true"
href="http://www.microsoft.com/en-gb/download/details.aspx?id=13523">http://www.microsoft.com/en-gb/download/details.aspx?id=13523</a>
(x64)</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">A user guide for the utility can be
downloaded from <a moz-do-not-send="true"
href="https://s3-eu-west-1.amazonaws.com/uk-co-ffei-sierra/Downloads/SierraConverter_UserGuide.pdf">https://s3-eu-west-1.amazonaws.com/uk-co-ffei-sierra/Downloads/SierraConverter_UserGuide.pdf</a>.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">The utility uses the OpenSlide library, and
as it has been used for a viewer that I also developed (sorry,
but I cannot make this available to you) and I needed that to
be able to open the DICOM images that I had converted (and
from other sources), I modified the sources to allow me to do
this. In due diligence I have made available the modified
OpenSlide sources. These can be downloaded from
<a moz-do-not-send="true"
href="https://s3-eu-west-1.amazonaws.com/uk-co-ffei-sierra/Downloads/openslide_src.zip">https://s3-eu-west-1.amazonaws.com/uk-co-ffei-sierra/Downloads/openslide_src.zip</a>.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">The sources include a new vendor driver
‘nema’ chosen as this is the body that oversees changes to the
DICOM standard. There is also a new ‘ffei’ vendor driver for a
format that we are using internally so this can be ignored.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Please note that the DICOM support in the
OpenSlide library only opens the first image in the file-set.
Also if you analyse the resulting file(s) from the conversion
you will see that I have made some assumptions about the image
orientation relative to the DICOM standard. These may not
always be correct as I have no other vendor originated file
sets to check.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I believe that the file set written by the
converter is valid as I used the ‘dciodvfy’ utility written by
David Clunie (<a moz-do-not-send="true"
href="http://www.dclunie.com">http://www.dclunie.com</a>) to
check.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I use the excellent (and free) Rubo DICOM
parser to look inside the DICOM files generated (<a
moz-do-not-send="true"
href="http://www.rubomedical.com/dicomparser">http://www.rubomedical.com/dicomparser</a>).</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Note that you will need an ICC profile in
order to use the utility. However the utility does not check
that it is a scanner profile, so you could just use a monitor
profile. Several are available in the
C:\Windows\System32\spool\drivers\color folder on Windows
machines. The file will be populated with whichever you
choose, but is unlikely to be semantically ‘correct’ as a
result if you do not have access to the original vendor’s ICC
profile. Vendors such as Aperio embed theirs so you could try
extracting it with a hex editor or such.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">John Stevenson-Hoare</p>
<p class="MsoNormal"> <br>
</p>
</div>
</blockquote>
<br>
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