Assessment of bone ages by the Tanner-Whitehouse method using a computer-aided system

Area of Science:

• Pediatric Endocrinology
• Radiology
• Biomedical Engineering

Background:

• Accurate bone age assessment is crucial for evaluating growth and development in children.
• Traditional methods rely on manual interpretation of radiographs, which can be subjective and time-consuming.
• The Tanner-Whitehouse 2 (TW2) method is a widely used standard for bone age estimation.

Purpose of the Study:

• To evaluate a computer-aided system for bone age estimation using Fourier analysis.
• To compare the system's performance against the original TW2 standards.
• To assess the system's applicability in a clinical setting with tall Dutch girls.

Main Methods:

• A computer-aided system employing Fourier analysis was developed to estimate bone age.
• The system matched bone templates to scanned radiographs of the radius, ulna, and short finger bones.
• Bone maturity stages, individual/total bone scores, and bone age values were generated by the system.

Main Results:

• The computer-aided system's bone age assessments showed no significant difference from the original TW2 reference values.
• When applied to tall Dutch girls, the system demonstrated good agreement with experienced raters for individual bone assessments.
• Less agreement was observed between the system and raters for the total 13-bone score and overall bone age in the tall girls cohort.

Conclusions:

• The computer-aided bone age estimation system, based on Fourier analysis, is applicable and aligns with established TW2 standards.
• The system shows potential for objective and efficient bone age assessment in pediatric endocrinology.
• Further refinement may be needed to improve agreement for total bone scores and overall bone age estimations in specific populations.