Anterior Corona Radiata – acr

Protocol PDF Document (version 1.2): acr

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Instructions:

  1. Create two separate coronal ROI regions (at approx. coronal slice 48): one for the left side, one for the right side

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  1. Create two coronal seed regions (at approx. sagittal slice 57), one for each side

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  1. Create one ROA region and draw a sagittal ROA slice at the midline (at approx. sagittal slice 78)
  1. Check the left seed/ROI regions and ROA region, then perform fiber tracking. Based on this output, the other ROA placements will be clearer.
  1. Draw two more ROA regions within the same ROA file:
      1. on an axial slice inferior to the seed regions
      2. on an axial slice superior to the seed region
  1. In the region list, check ONLY the left seed/ROI regions and ROA regions, then perform fiber tracking. Under the tract list, make sure only the left tract is checked and highlighted in purple. Save left regions, tracts, and density files. Once it is saved, delete the left tract in the tract list.
  1. In the region list, uncheck the left seed/ROI regions, check the right seed/ROI regions and ROA region, then perform fiber tracking. Under the tract list, make sure only the right tract is checked and highlighted in purple. Save right regions, tracts, and density files.
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4 Responses to Anterior Corona Radiata – acr

  1. Baxter Rogers says:

    This captures a lot of posterior fibers. Should we consider a coronal termination plane around the anterior commissure?

  2. Kurt says:

    Description of inferior to and superior to seed region is pretty vague – maybe we describe this as it relates to anatomical structures?

  3. Kurt says:

    Should this be limited to “anterior” region of the corona radiata? seems wrong that it covers entire A/P of brain

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