Ultrasound Registration

Registers a reference ultrasound sweep or volume to a moving CT or MRI.

Input

The algorithm requires a moving CT or MRI volume, and an ultrasound sweep or volume which will be used as fixed reference.

Output

The registration transformation of the moving volume is modified to maximize the correspondence between the volumes. If an affine step has been enabled, this transformation may be an affine deformation.

Description

This class registers an input moving CT or MRI volume to an ultrasound sweep (or already compounded volume), by acting as a high-level interface for a collection of underlying alternative registration methods. According to the input, it attempts to intelligently find smart presets that lead to a robust and reliable performance.

The following parameters may be used to modify the default behavior of the algorithm:

  • Volume Spacing allows to specify the target spacing for downsampled version of the input reference volume the registration algorithm actually works on.
  • Ultrasound Spacing allows to specify the target spacing for the downsampled version of the input moving volume the registration algorithm actually works on, as a percentage of the reference volume spacing. For lower values of this parameter, the spacing of the ultrasound volume will be finer; hence, the registration will be slower.
  • Mode defines the steps taken by the registration algorithm.
  • Slice-based determines whether if the ultrasound sweep will be compounded, or left as individual slices.
  • Probe Compression enables a probe compression model.
  • Output Pre-processed Volumes makes the algorithm add the volumes actually used during the registration to the data model.