Estimation of the deformations induced by articulated bodies: Registration of the spinal column

被引：14

作者：

d'Aische, Aloys du Bois ^{[1
,2
]}

De Craene, Mathieu ^{[1
,2
]}

Geets, Xavier ^{[4
]}

Gregoire, Vincent ^{[4
]}

Macq, Benoit ^{[1
]}

Warfield, Simon K. ^{[3
,5
]}

机构：

[1] Catholic Univ Louvain, Commun & Remote Sensing Lab, B-1348 Louvain, Belgium

[2] Brigham & Womens Hosp, Dept Radiol, Computat Radiol Lab, Boston, MA 02115 USA

[3] Harvard Univ, Sch Med, Brigham & Womens Hosp, Boston, MA 02115 USA

[4] Catholic Univ Louvain, Clin St Luc, B-1150 Brussels, Belgium

[5] Childrens Hosp, Computat Radiol Lab, Boston, MA 02115 USA

来源：

BIOMEDICAL SIGNAL PROCESSING AND CONTROL | 2007年 / 2卷 / 01期

基金：

美国国家科学基金会;

关键词：

Articulation; Vertebrae; Registration; INTRAOPERATIVE MR-IMAGES; BRAIN;

D O I：

10.1016/j.bspc.2007.03.002

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We present a new non-rigid registration algorithm estimating the displacement field generated by articulated bodies. Indeed the bony structures between different patient images may rigidly move while other tissues may deform in a more complex way. Our algorithm tracks the displacement induced in the column by a movement of the patient between two acquisitions. The volumetric deformation field in the whole body is then inferred from those displacements using a linear elastic biomechanical finite element model. We demonstrate in this paper that this method provides accurate results on 3D sets of computed tomography (CT), MR and positron emission tomography (PET) images and that the results of the registration algorithm show significant decreases in the mean, min and max errors. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：16 / 24

页数：9

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