Automatic inference and measurement of 3D carpal bone kinematics from single view fluoroscopic sequences

Chen, Xin and Graham, Jim and Hutchinson, Charles and Muir, Lindsay (2012) Automatic inference and measurement of 3D carpal bone kinematics from single view fluoroscopic sequences. IEEE Transactions on Medical Imaging, 32 (2). pp. 317-328. ISSN 1558-254X

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Abstract

We present a novel framework for estimating the 3D poses and shapes of the carpal bones from single view fluoroscopic sequences. A hybrid statistical model representing both the pose and shape variation of the carpal bones is built, based on a number of 3D CT data sets obtained from different subjects at different poses. Given a fluoroscopic sequence, the wrist pose, carpal bone pose and bone shapes are estimated iteratively by matching the statistical model with the 2D images. A specially designed cost function enables smoothed parameter estimation across frames and constrains local bone pose with a penalty term. We have evaluated the proposed method on both simulated data and real fluoroscopic sequences and demonstrated that the relative poses of carpal bones can be accurately estimated. One condition that may be assessed using this measurement is dissociation, where the distance between the bones is larger than normal. Scaphoid–Lunate dissociation is one of the most common of these. The error of the measured 3D Scaphoid–Lunate distances were 0.75+/-0.5 mm for simulated data (25 subjects) and 0.93+/-0.47 mm for real data (15 subjects). We also propose a method for constructing a “standard” pathology measurement tool for automatically detecting Scaphoid–Lunate dissociation conditions, based on single-view fluoroscopic sequences. For the simulated data, it produced 100% sensitivity and specificity. For the real data, it achieved 83% sensitivity and 78% specificity.

Item Type: Article
Additional Information: © 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: Carpal bone poses, 2D 3D registration, Statistical pose model, Statistical shape model, Fluoroscopic sequence, Wrist pathology
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Computer Science
Identification Number: 10.1109/TMI.2012.2226740
Depositing User: Chen, Xin
Date Deposited: 21 Apr 2017 14:03
Last Modified: 21 Apr 2017 15:29
URI: http://eprints.nottingham.ac.uk/id/eprint/42107

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