Biomedical Engineering Reference
In-Depth Information
15
Biomechanical Modeling for Image
Registration: Applications in Image Guided
Neurosurge
ry
Keith D. Paulsen and Michael I. Miga
CONTENTS
15.1 Introduction.............................................................................................. 331
15.2 Brain Tissue Modeling: An Abbreviated Review................................ 334
15.3 Brain Tissue Model Description ............................................................ 335
15.4 Finite Element Methodology ................................................................. 338
15.5 Model Validation ..................................................................................... 340
15.6 Model Inputs ............................................................................................ 352
15.6.1 Preoperative Data ...................................................................... 352
15.6.2 Intraoperative Data ................................................................... 353
15.7 Conclusions .............................................................................................. 359
References ............................................................................................. 359
15.1
Introduction
The majority of the chapters of this topic discuss methods for rigid-body reg-
istration and applications (especially of the brain in the closed skull) where
these methods can be used for intermodality, intramodality, or image to
physical space registration. There is increasing interest now in nonrigid reg-
istration, which is more generally applicable. Chapter 13 reviewed the main
approaches to nonrigid registration. These methods are almost invariably
used for intramodality registration of images from the same or different sub-
jects. Chapter 14 discusses the intersubject registration of brain images in detail.
For image-to-physical registration, as used for image-guided surgery and also
for intermodality applications, nonrigid registration is a harder problem
