DBP:Harvard:Software:Minutes:9-21-05

Agenda for 9/21/05

Comparison of LSDIrecon and DTMRI scalar measures, also including Steve's "include zeros" functionality (details here)

1. Differences in FA are always <0.25% (usually much smaller)
2. Raul removed the Scale Factor, which seems to make Trace values very small compared to ADC
   • BUT DTMRI trace values are still consistent (in relative terms) with LSDIrecon ADC, i.e., always 250X smaller
3. Including zeros (Steve's added button) did not make a difference. Does this mean 1) there is no difference, or 2) the "include zeros" button does not work?

Diffusion cases acquired Coronal AP (details here)

• Fiber tracking seems to be fine on these cases

2 ROI method for DTI fiber tracking (details here)

• I can't get it to work- please help!
• "NOT" functionality: Raul is working on it

Higher resolution scans on 3T (details here)

• Fibertracking was done after smoothing the tensor.

Fiber clustering (detailshere)

• fiber backtracking/corpus labeling method?

DTI case for Lynn DeLisi (details from Sylvain to Raul here)

• Marek, do we know what variables/examples she wants from us?

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Other issues...

• Stephan's LSDIrecon code (details here)

• Background noise in DTMRI scalar measures (details here)