Difference between revisions of "DBP:Harvard:Software:Minutes:4"

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== DTI Meeting Minutes - 4/12/06 ==
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== DTI Meeting Minutes | April 26, 2006 ==
  
Present: Doug, Gudrun, Marc, Mark, KangUk, Sylvain, Marek, CF, Gordon, Katharina, Jenny
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<br /> Present: Doug, Marc, Katharina, Sylvain, Kang Uk, Gordon, CF, Marek, Gudrun
  
<br />'''Tensor Registration'''
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<br />
  
* Slicer-nightly gives wrong results in tensor registration module; Kang Uk will talk to Matthan about correcting this
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* Slicer
 +
** Slicer26 should be able to read NRRD DWIs now
 +
** doDTI gives you mean FA, would be nice to display this in Slicer somewhere
  
<br />'''DTI data converted to NRRD'''
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<br />
  
* Mark is working on converting all of our diffusion data to NRRD format. So far coronal data has been converted, and is now stored in /caseDXX/coronal_nhdr/ . The volumes stored are DWI, T2W, and FIL, and all need to be read using slicer2-nightly.
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* New protocol: scanning today?
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** required that a licensed MD approve every scan
 +
** sequence will be DICOM files, probably same format as before, same procedure for downloading
 +
** Marek meeting with Nan-Quei at 1:30 today at the SPL to talk about the protocol
 +
** Will try multiple scans varying b-value and number of directions
 +
*** Will try 750 and 1000 with minimum of 32 directions; also try 50 directions
  
<br />'''Scalar Measures/Negative Eigenvalues'''
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<br />
  
* After data is converted to NRRD, we will test cases again to see if scalar measures are consistent.
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* Anterior Commissure
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** would be nice to have an extra scalar map with orientation overlayed with the output of this method
 +
** Gordon will finish creating these maps and send to Sylvain
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 +
<br />
 +
 
 +
* Cingulum Bundle histograms of FA/Mode
 +
** note that people tend to overestimate how linear the ROI will be.. mostly orthotropic
 +
** now that we know that anisotropy is a bi-variate quantity, still need to answer the question about how to do statistics on this; non-parametric tests?
 +
** would be helpful to have comparison of different white matter ROIs, plotted in this space
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*** Corpus callosum, cingulum bundle, STG white matter, STG gray matter, CSF; these ROIs will be sent to Gordon
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 +
<br />
 +
 
 +
* Kang Uk - problem with tensor coregistration?
 +
** script was updated by Mattan in slicer-nightly, but still doesn't seem to be working
 +
** will try a basic co-registration of two tensor sets in the same direction

Latest revision as of 13:55, 18 December 2006

Home < DBP:Harvard:Software:Minutes:4

DTI Meeting Minutes | April 26, 2006


Present: Doug, Marc, Katharina, Sylvain, Kang Uk, Gordon, CF, Marek, Gudrun


  • Slicer
    • Slicer26 should be able to read NRRD DWIs now
    • doDTI gives you mean FA, would be nice to display this in Slicer somewhere


  • New protocol: scanning today?
    • required that a licensed MD approve every scan
    • sequence will be DICOM files, probably same format as before, same procedure for downloading
    • Marek meeting with Nan-Quei at 1:30 today at the SPL to talk about the protocol
    • Will try multiple scans varying b-value and number of directions
      • Will try 750 and 1000 with minimum of 32 directions; also try 50 directions


  • Anterior Commissure
    • would be nice to have an extra scalar map with orientation overlayed with the output of this method
    • Gordon will finish creating these maps and send to Sylvain


  • Cingulum Bundle histograms of FA/Mode
    • note that people tend to overestimate how linear the ROI will be.. mostly orthotropic
    • now that we know that anisotropy is a bi-variate quantity, still need to answer the question about how to do statistics on this; non-parametric tests?
    • would be helpful to have comparison of different white matter ROIs, plotted in this space
      • Corpus callosum, cingulum bundle, STG white matter, STG gray matter, CSF; these ROIs will be sent to Gordon


  • Kang Uk - problem with tensor coregistration?
    • script was updated by Mattan in slicer-nightly, but still doesn't seem to be working
    • will try a basic co-registration of two tensor sets in the same direction