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Proceedings Paper

Carpal bone analysis in bone age assessment
Author(s): Aifeng Zhang; Arkadiusz Gertych; Sylwia Kurkowska-Pospiech; Brent J. Liu; H. K. Huang
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Paper Abstract

A computer-aided-diagnosis (CAD) method has been previously developed in our Laboratory based on features extracted from regions of interest (ROI) in phalanges in a digital hand atlas. Due to various factors, including, the diversity of size, shape and orientation of carpal bones, non-uniformity of soft tissue, low contrast between the bony structure and soft tissue, the automatic identification and segmentation of bone boundaries is an extremely challenging task. Past research work on carpal bone segmentation has been done utilizing dynamic thresholding. However, due to the discrepancy of carpal bones developments and the limitations of segmentation algorithms, carpal bone ROI has not been taken into consideration in the bone age assessment procedure. In this paper, we present a method for fully automatic carpal bone segmentation and feature analysis in hand X-ray radiograph. The purpose of this paper is to automatically segment the carpal bones by anisotropic diffusion and Canny edge detection techniques. By adding their respective features extracted from carpal bones ROI to the phalangeal ROI feature space, the accuracy of bone age assessment can be improved especially when the image processing in the phalangeal ROI fails in younger children.

Paper Details

Date Published: 16 March 2006
PDF: 9 pages
Proc. SPIE 6145, Medical Imaging 2006: PACS and Imaging Informatics, 61450Z (16 March 2006); doi: 10.1117/12.653858
Show Author Affiliations
Aifeng Zhang, Univ. of Southern California (United States)
Arkadiusz Gertych, Univ. of Southern California (United States)
Sylwia Kurkowska-Pospiech, Univ. of Southern California (United States)
Brent J. Liu, Univ. of Southern California (United States)
H. K. Huang, Univ. of Southern California (United States)

Published in SPIE Proceedings Vol. 6145:
Medical Imaging 2006: PACS and Imaging Informatics
Steven C. Horii; Osman M. Ratib, Editor(s)

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