Extract angular displacement from "Rotate to Volume Plane"

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1

Operating system: Windows 10
Slicer version: 4.8.0

Hello everybody,

is there any possibility to extract the angular displacement (axial , sagittal, coronal or x, y, z) between the default aligned slicer viewers of the slice and the realigned slicer viewers after using the “Rotate to Volume Plane” function.
I want to compare this angles with my calculated angles gathered from the “ImageOrientationPatient” (0020,0037) attribute of the DICOM meta data.

Thanks in advanced.

2

Image axis directions in RAS coordinate system is available in the first 3 columns of the ijkToRasDirections matrix returned by vtkMRMLVolumeNode.GetIJKToRASDirectionMatrix:

volumeNode = getNode('MRHead')
ijkToRasDirections = vtk.vtkMatrix4x4()
volumeNode.GetIJKToRASDirectionMatrix(ijkToRasDirections)
print(ijkToRasDirections)
1 Like
3

Thats perfect! Thank you so much and thank you for the quick response.