Difference between revisions of "DBP:Harvard:Software:Minutes:5"

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== DTI Meeting Minutes | May 10, 2006 ==
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== DTI Meeting Minutes | May 31, 2006 ==
  
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<br /> Present: CF, Marty, Marc, Mark, Toshiro, KangUk, Doug, Sylvain, Gordon
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<br />'''Present:''' Doug, Sylvain, Katharina, Marek, Marty, CF, Toshiro, KangUk
  
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<br />'''New Sequence:'''
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<br />'''Tensor Coregistration:'''
  
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* Nan-kuei will be helping with testing of the new sequence
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* Usman is working on coregistration for KangUk; each case takes about 3 hours to process
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* Once sequence is decided, planning on bringing in all previous DTI subjects during month of July
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* Mattan has improved his method; KangUk will test the update to see if it is faster or more accurate than the current method through Slicer
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* Test images
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* Soon the TransformVolume module in Slicer will be able to resample tensor datasets
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** 1.7^3 resolution
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* Reminder that KangUk is leaving at the end of August
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** Problem with a missing DWI for one slice--causes major differences in tensor estimation
 
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** Strange cross-section artifact superimposed on DWI images (doesn't seem to affect FA maps as much)
 
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** Forebrain appears dimmer than hindbrain
 
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** Gordon will discuss these issues with Marek and Nan-Kuei
 
  
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<br />'''KangUk - White matter atlas coregistration:'''
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<br />'''Anterior Commissure:'''
  
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* Both linear and nonlinear coregistration still not that great for a problematic case
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* Sylvain created ColorByOrientation maps, but Gordon's boundaries are not matching well, perhaps due to some interpolation issue; Sylvain and Gordon will work on this
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* KangUk will test on a better case; will try to do dual-channel coregistration in AG using FA and Mode
 
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* Will continue to use scalar maps for coregistration; using structural would add an additional registration step and more error
 
  
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<br />'''DTMRI scalar testing:'''
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<br />'''DeLisi data:'''
  
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* Needs to be an estimation error map in the pipeline; but this is sequence-dependent, so will have not be implemented until new sequence is set
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* Originally wanted to trace cingulate, uncinate, and fornix
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* Sylvain and Doug will meet to decide how to delineate the cingulate
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* 15 cases per group

Revision as of 13:19, 18 December 2006

Home < DBP:Harvard:Software:Minutes:5

DTI Meeting Minutes | May 31, 2006


Present: Doug, Sylvain, Katharina, Marek, Marty, CF, Toshiro, KangUk


Tensor Coregistration:

  • Usman is working on coregistration for KangUk; each case takes about 3 hours to process
  • Mattan has improved his method; KangUk will test the update to see if it is faster or more accurate than the current method through Slicer
  • Soon the TransformVolume module in Slicer will be able to resample tensor datasets
  • Reminder that KangUk is leaving at the end of August


Anterior Commissure:

  • Sylvain created ColorByOrientation maps, but Gordon's boundaries are not matching well, perhaps due to some interpolation issue; Sylvain and Gordon will work on this


DeLisi data:

  • Originally wanted to trace cingulate, uncinate, and fornix
  • Sylvain and Doug will meet to decide how to delineate the cingulate
  • 15 cases per group
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