Computerized analysis of radiographic bone patterns: Effect of imaging conditions on performance

We are developing computerized methods for characterizing the bone texture pattern from digitized skeletal radiographs. For this method to be useful clinically, it must be able to distinguish between weak and strong bone under the range of exposure conditions potentially encountered in the clinical...

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Bibliographic Details
Published in:Medical physics (Lancaster) 2000-01, Vol.27 (1), p.75-85
Main Authors: Chinander, Michael R., Giger, Maryellen L., Martell, John M., Favus, Murray J.
Format: Article
Language:English
Subjects:
biomechanics
Biophysical Phenomena
Biophysics
bone
Bone and Bones - diagnostic imaging
Bone Density
Computers
diagnostic radiography
Digital radiography
Evaluation Studies as Topic
Femur Neck - diagnostic imaging
Femur Neck - physiology
Fourier Analysis
Fractures, Bone - etiology
Humans
Image analysis
In Vitro Techniques
Materials physicists
Mechanical and electrical properties of tissues and organs
medical image processing
Medical imaging
Osteoporosis - complications
Osteoporosis - diagnostic imaging
Osteoporosis - physiopathology
Physicists
Radiographic Image Enhancement - methods
Radiographic Image Interpretation, Computer-Assisted - methods
Radiography
Risk Factors
Space life sciences
Stress, Mechanical
Testing procedures
Vacuum tubes
X‐ray scattering
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Summary:We are developing computerized methods for characterizing the bone texture pattern from digitized skeletal radiographs. For this method to be useful clinically, it must be able to distinguish between weak and strong bone under the range of exposure conditions potentially encountered in the clinical setting. In this study, we examined the effect of exposure conditions on Fourier-based texture features. Thirty-four femoral specimens from total hip arthroplasties were radiographed multiple times under different exposure conditions. The specimens underwent mechanical strength testing from which load to failure values were obtained. The performance of the texture features were investigated in the task of distinguishing between strong and weak bone as characterized by the load to failure values. The texture features showed no dependence upon focal spot size of the x-ray tube or magnification. The texture features did show a dependence with relative exposure, peak kilovoltage, and amount of scattering material.
ISSN:0094-2405
2473-4209
DOI:10.1118/1.598858