Purpose: To develop a neural network to calculate skeletal age based on measurements taken from digitized hand radiographs.
Materials And Methods: From a database of 521 hand radiographs obtained in healthy patients, four parameters were calculated from seven linear measurements and were used to train a neural network, with use of the jackknife method, to calculate skeletal age. The results were compared with those of an experienced pediatric radiologist using a standard pediatric skeletal atlas.
Results: The mean difference from biologic age for the neural network was -0.261 years +/- 1.82 (standard deviation) and for the radiologist, -0.232 years +/- 1.54; this difference was not significantly different (P = .67, Wilcoxon signed rank test). Skeletal age determined by the neural network was closer to the biologic age than that assigned by the radiologist in 243 of 521 cases (47%).
Conclusion: A simple neural network may assist radiologists in the assessment of skeletal age.
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| http://dx.doi.org/10.1148/radiology.195.3.7753995 | DOI Listing |
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