Fractional anisotropy measurements in the right Arcuate fascilicus

This data contains a sample of measurements from dMRI patients. dMRI measures the flow of water through the brain. After the image is processed, a trajectory tracking algorithm is applied to determine the direction of water diffusion. This leads to a collection of fasicles that connect different regions of the brain to each other. This data is for the fasicles that correspond to the Arcuate fascilicus shown below (Source: Wikipedia).

Usage

arcuate

Format

An object of class tbl_df (inherits from tbl, data.frame) with 1007 rows and 2 columns.

Details

This data contains two measurements:

1. The position along the region, from one end to the other.

2. The fa or "fractional anisotropy" a measurement of the amount of diffusivity.

Examples

arcuate
#> # A tibble: 1,007 × 2
#>    position    fa
#>       <dbl> <dbl>
#>  1     1.09 0.255
#>  2     1.22 0.298
#>  3     1.31 0.250
#>  4     1.34 0.276
#>  5     1.51 0.190
#>  6     1.59 0.196
#>  7     2.02 0.208
#>  8     2.20 0.267
#>  9     2.99 0.223
#> 10     3.01 0.311
#> # ℹ 997 more rows