Characterization of trabecular bone structure using 2D Fourier transformation and fractal analysis.
- Author:
Keon Il LEE
1
Author Information
1. Department of Oral & Maxillofacial Radiology, College of Dentistry, Wonkwang University, Wonkwang Dental Research Institute, Korea.
- Publication Type:Original Article
- Keywords:
Fourier transform;
fractal dimension;
osteoporosis;
bone
- MeSH:
Fourier Analysis*;
Fractals*;
Hydrochloric Acid;
Osteoporosis
- From:Journal of Korean Academy of Oral and Maxillofacial Radiology
1998;28(2):339-353
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The purpose of this study was to investigate whether a radiographic estimate of osseous fractal dimension and power spectrum of 2D discrete Fourier transform is useful in the characterization of structural changes in bone. Ten specimens of bone were decalcified in fresh 50 ml solutions of 0.1 N hydrochloric acid solution at cummulative timed periods of 0 and 90 minutes, and radiographed from 0 degree projection angle controlled by intraoral parelleling device. I performed one-dimensional variance, fractal analysis of bony profiles and 2D discrete Fourier transform. The results of this study indicate that variance and fractal dimension of scan line pixel intensities decreased significantly in decalcified groups but Fourier spectral analysis didn't discriminate well between control and decalcified specimens.
