NDLI: Evaluation and Initial Validation Studies of Anatomical Structure Morphing

Content Provider	IEEE Xplore Digital Library
Author	Rajamani, K.T. Talib, H. Styner, M.A. Ballester, M.A.G.
Copyright Year	2005
Description	Author affiliation: Inst. for Surg. Technol. & Biomech., Bern Univ. (Rajamani, K.T.; Talib, H.)
Abstract	Anatomical structure morphing is the process of estimating the patient-specific 3D shape of a given anatomy from a few digitized surface points. This provides an appropriate intra-operative 3D visualization without pre or intra-operative imaging. Our method fits a statistical deformable model to the digitized landmarks and bone surface points which are usually sparse. The statistical deformable model is constructed using principal component analysis (PCA) from an appropriate training set of objects. Our proposed technique extrapolates the 3D shape by computing a Mahalanobis distance weighted least-squares fit of this model to the minimal sparse 3D data. In this paper we present evaluation and initial validation studies of our morphing technique on 9 dry cadaver femur bones. The influence of size of the initial training set on the morphing performance is also evaluated by repeating our experiments on two different training sets of varying sizes
Starting Page	3276
Ending Page	3279
File Size	382153
Page Count	4
File Format	PDF
ISBN	0780387414
DOI	10.1109/IEMBS.2005.1617176
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-01-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Anatomical structure Bones Surgery Shape Principal component analysis Visualization Anatomy Deformable models Surface fitting Cadaver
Content Type	Text
Resource Type	Article

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