Share Email Print
cover

Proceedings Paper

Computer assisted measurement of femoral cortex thickening on radiographs
Author(s): Jianhua Yao; Yixun Liu; Foster Chen; Ronald M. Summers; Timothy Bhattacharyya
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Radiographic features such as femoral cortex thickening have been frequently observed with atypical subtrochanteric fractures. These features may be a valuable finding to help prevent fractures before they happen. The current practice of manual measurement is often subjective and inconsistent. We developed a semi-automatic tool to consistently measure and monitor the progress of femoral cortex thickening on radiographs. By placing two seed points on each side of the femur, the program automatically extracts the periosteal and endosteal layers of the cortical shell by active contour models and B-spline fitting. Several measurements are taken along the femur shaft, including shaft diameter, cortical thickness, and integral area for medial and lateral cortex. The experiment was conducted on 52 patient datasets. The semi-automatic measurements were validated against manual measurements on 52 patients and demonstrated great improvement in consistency and accuracy (p<0.001).

Paper Details

Date Published: 18 March 2013
PDF: 8 pages
Proc. SPIE 8670, Medical Imaging 2013: Computer-Aided Diagnosis, 86703C (18 March 2013); doi: 10.1117/12.2007605
Show Author Affiliations
Jianhua Yao, National Institutes of Health Clinical Ctr. (United States)
Yixun Liu, National Institutes of Health Clinical Ctr. (United States)
Foster Chen, National Institutes of Health (United States)
Ronald M. Summers, National Institutes of Health Clinical Ctr. (United States)
Timothy Bhattacharyya, National Institutes of Health (United States)


Published in SPIE Proceedings Vol. 8670:
Medical Imaging 2013: Computer-Aided Diagnosis
Carol L. Novak; Stephen Aylward, Editor(s)

© SPIE. Terms of Use
Back to Top