@@ -46,10 +46,11 @@ The Orientation panel allows specification of a fibre orientation distribution (
- Visualisation panels
There are 4 visualisation panels:
V1. Sensitivity to b-value
V2. Sensitivity to diffusion time
V3. Sensitivity to orientation
V4. Sensitivity to parameter changes
1. Sensitivity to b-value
2. Sensitivity to diffusion time
3. Sensitivity to orientation
4. Sensitivity to parameter changes
Panels 1,2 and 4 show a figure for signal changes as a function of b-value, diffusion time, and model parameters respectively. They also show a figure for changes in commonly used tensor-based parameters (FA and MD). The signal plot by default is the spherical-mean technique (i.e. averaged signal over all 3D orientations), unless this is modified through the control panels (see below).
Visualisation panel 3 show the signal as a function of gradient orientation in two different ways: either as a function of the angle w.r.t. an orientation specified in the control panels (below), or as a 3D glyph.
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@@ -57,10 +58,10 @@ Visualisation panel 3 show the signal as a function of gradient orientation in t
- Control panels
Finally, there are 4 controls panels:
C1. Acquisition: specify an acquisition scheme by either selecting amongst pre-defined ones or loading text files. Once a scheme is chosen, click on 'Display scatter' to see the predicted data. Click on 'Save scatter' to save the data into a CSV file.
C2. Shells: modify the b-value/diffusion time/gradient amplitude/gradient duration. This affects all the signal plots except for those where b-value/diffusion time appear along the x-axis.
C3. Noise: add noise to the scattered data. This only affects the scattered data following the acquisition scheme defined in panel (1), not the continuous signal predictions.
C4. Axis: perform operations that affect the x and y axes of the plots. User can choose to apply one of predefined operations to the axes (e.g. to look at log-signal instead of signal), or can modify the reference orientation of the signal v angle plot (see visualisation panel 4)
1. Acquisition: specify an acquisition scheme by either selecting amongst pre-defined ones or loading text files. Once a scheme is chosen, click on 'Display scatter' to see the predicted data. Click on 'Save scatter' to save the data into a CSV file.
2. Shells: modify the b-value/diffusion time/gradient amplitude/gradient duration. This affects all the signal plots except for those where b-value/diffusion time appear along the x-axis.
3. Noise: add noise to the scattered data. This only affects the scattered data following the acquisition scheme defined in panel (1), not the continuous signal predictions.
4. Axis: perform operations that affect the x and y axes of the plots. User can choose to apply one of predefined operations to the axes (e.g. to look at log-signal instead of signal), or can modify the reference orientation of the signal v angle plot (see visualisation panel 4)
