DMCA
Fast voxel-based 2D/3D registration algorithm using a volume rendering method based on the shear-warp factorization (1999)
| Citations: | 16 - 2 self |
BibTeX
@MISC{Weese99fastvoxel-based,
author = {Jürgen Weese and Roland Göcke and Graeme P. Penney and Paul Desmedt and Thorsten M. Buzug and Heidrun Schumann},
title = {Fast voxel-based 2D/3D registration algorithm using a volume rendering method based on the shear-warp factorization},
year = {1999}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
2D/3D registration makes it possible to use pre-operative CT scans during X-ray fluoroscopy guided interventions for navigation purposes. For this registration task a fast voxel-based method is presented, which uses a recently introduced similarity measure (pattern intensity). This measure is especially suitable for 2D/3D registration, because it is robust with respect to structures as, for instance, a stent visible in the X-ray fluoroscopy image but not in the CT scan. The method uses only a part of the CT scan for the generation of digitally reconstructed radiographs (DRRs) to accelerate their computation. Nevertheless, computation time is crucial for intra-operative application, because numerous DRRs must be computed. The suitability of different volume rendering methods for 2D/3D registration has been investigated therefore. A method based on the shear-warp factorization turned out to be especially suitable and builds the basis of the registration algorithm. The algorithm has been ...
Keyphrases
registration algorithm shear-warp factorization ct scan numerous drrs pattern intensity x-ray fluoroscopy image similarity measure x-ray fluoroscopy intra-operative application pre-operative ct scan stent visible fast voxel-based method computation time navigation purpose different volume
