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Digital hand atlas and web-based bone age assessment: system design and implementation.

F Cao1, H K Huang, E Pietka

  • 1Department of Radiology, University of California, San Francisco 94143-0628, USA. fcao@pacbell.net

Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society
|August 15, 2000
PubMed
Summary

This study introduces a digital hand atlas and computer-aided diagnostic system for web-based bone age assessment. This new method offers a more accurate and cost-effective alternative to traditional atlas matching for evaluating pediatric growth disorders.

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Area of Science:

  • Pediatric Radiology
  • Medical Informatics
  • Computer-Aided Diagnosis

Background:

  • Traditional bone age assessment relies on the Greulich-Pyle atlas, developed in the 1950s.
  • This atlas has limitations due to its outdated reference population and observer variability.
  • Current methods can lead to inaccuracies in assessing pediatric growth disorders.

Purpose of the Study:

  • To design and implement a digital hand atlas and computer-aided diagnostic (CAD) system for web-based bone age assessment.
  • To overcome the limitations of the traditional Greulich-Pyle atlas.
  • To provide a quantitative, accurate, and cost-effective method for bone age assessment.

Main Methods:

  • Developed a digital hand atlas using a large dataset of hand images from diverse ethnic groups.

Related Experiment Videos

  • Integrated a CAD module with a relational image database and a Java-based web user interface.
  • Utilized web technology for remote access, allowing users to submit hand radiographs for automated assessment.

    • Main Results:

    • The digital atlas database organizes hand images, quantitative features, and patient data.
    • The CAD system extracts skeletal maturity features from clinical hand images.
    • Quantitative features are compared against the digital atlas for bone age determination.

    Conclusions:

    • The digital hand atlas and CAD system offer a modern alternative to traditional bone age assessment.
    • This web-based system addresses the limitations of outdated atlases and observer dependency.
    • The system provides a quantitative, accurate, and cost-effective solution for evaluating pediatric growth.