Hi Sarah,<br>I'm not sure if I understand your question correctly.... but my understanding is that this is the typical order of operations in using the flag file:<br>1) create the flag file: when loading a DTI series, you type in the name (and path) of the file you wish to create in the textbox under the "Image Quality Flag File (Optional)" section of the "DW-Image Parameters" window (e.g. F:\data\myflagfile.flg)<br>
2) fill in the rest of the window to load your DTI series<br>3) calculate Mean, STD ...<br>4) display Original - ADC - Mean - STD<br>5) flag the bad slices<br>at this point, you can re-calculate the Mean, STD ... and it will take into account the flags<br>
when you close the window, you'll be asked it you want to save the flg file - say yes<br>next time when you open the series, load the flg file you saved, and you can re-calculate the Mean, STD ...<br><br>Hope that helps,<br>
<br>- Jerry<br><br><br><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="ProgId" content="PowerPoint.Slide"><meta name="Generator" content="Microsoft PowerPoint 11"><title>Slide 2</title><meta name="Description" content="4/7/2009"><style>
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<div class="O4" style=""><span style="position: absolute; left: -5.84%;">–</span><span style="color: black;" lang="EN-GB">Calculate Mean, STD …
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<div class="O4" style=""><span style="position: absolute; left: -5.84%;">–</span><span style="color: black;" lang="EN-GB">Display Original – ADC – Mean - STD
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<div class="O4" style=""><span style="position: absolute; left: -5.84%;">–</span><span style="color: black;" lang="EN-GB">Filter out bad scans
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<br><br><div class="gmail_quote">On Mon, Mar 30, 2009 at 2:20 PM, Copeland, Sarah A. <span dir="ltr"><<a href="mailto:SCopeland@mednet.ucla.edu">SCopeland@mednet.ucla.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hello,<br>
<br>
I have a question about how to use the image quality flag feature in DTI studio. First, when you view the original images and choose the flagged ones, is there a particular button or appropriate way to save the .flg file, or do you just save it using the "save" icon and create a file with the .flg extension?<br>
<br>
Second, since the ability to view and flag the images isn't there until after you run DTI mapping, should you save the flag file and then re-run DTI mapping so that you can check the box which incorporates the information from the .flg file?<br>
<br>
Thanks for your help.<br>
<br>
Sarah Copeland<br>
<br>
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