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Proceedings Paper

Neural network diagnosis of avascular necrosis from magnetic resonance images
Author(s): Armando Manduca; Paul S. Christy; Richard L. Ehman
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Paper Abstract

We have explored the use of artificial neural networks to diagnose avascular necrosis (AVN) of the femoral head from magnetic resonance images. We have developed multi-layer perceptron networks, trained with conjugate gradient optimization, which diagnose AVN from single sagittal images of the femoral head with 100% accuracy on the training data and 97% accuracy on test data. These networks use only the raw image as input (with minimal preprocessing to average the images down to 32 X 32 size and to scale the input data values) and learn to extract their own features for the diagnosis decision. Various experiments with these networks are described.

Paper Details

Date Published: 14 September 1993
PDF: 6 pages
Proc. SPIE 1898, Medical Imaging 1993: Image Processing, (14 September 1993); doi: 10.1117/12.154547
Show Author Affiliations
Armando Manduca, Mayo Clinic and Foundation (United States)
Paul S. Christy, Mayo Clinic and Foundation (United States)
Richard L. Ehman, Mayo Clinic and Foundation (United States)

Published in SPIE Proceedings Vol. 1898:
Medical Imaging 1993: Image Processing
Murray H. Loew, Editor(s)

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