Hawkes, DJ and Barratt, D and Blackall, JM and Chan, C and Edwards, PJ and Rhode, K and Penney, GP and McClelland, J and Hill, DLG (2005) Tissue deformation and shape models in image-guided interventions: a discussion paper. MEDICAL IMAGE ANALYSIS , 9 (2) 163 - 175. 10.1016/j.media.2004.11.007.
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Abstract
This paper promotes the concept of active models in image-guided interventions. We outline the limitations of the rigid body assumption in image-guided interventions and describe how intraoperative imaging provides a rich source of information oil spatial location of anatomical structures and therapy devices, allowing a preoperative plan to be updated during an intervention. Soft tissue deformation and variation from an atlas to a particular individual can both be determined using non-rigid registration. Established methods using free-form deformations have a very large number of degrees of freedom. Three examples of deformable models motion models. biomechanical models and statistical shape models - are used to illustrate how prior information can be used to restrict the number of degrees of freedom of the registration algorithm and thus provide active models for image-guided interventions. We provide preliminary results from applications for each type of model. (c) 2004 Elsevier B.V. All rights reserved.
| Type: | Article |
|---|---|
| Title: | Tissue deformation and shape models in image-guided interventions: a discussion paper |
| Location: | JUAN LES PINS, FRANCE |
| DOI: | 10.1016/j.media.2004.11.007 |
| Keywords: | image registration, statistical shape modeling, motion modeling, biomechanical modeling, image-guided interventions, INTRAOPERATIVE MR-IMAGES, BRAIN DEFORMATION, NONRIGID REGISTRATION, IN-VIVO, ULTRASOUND, SURGERY, SYSTEM, CALIBRATION, VISUALIZATION, NEUROSURGERY |
| UCL classification: | UCL > School of BEAMS > Faculty of Engineering Science > Medical Physics and Bioengineering |
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