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Intermethod variation in bone histomorphometry: comparison between manual and computerized methods applied to iliac

P M Chavassieux, M E Arlot, P J Meunier

    Bone
    |January 1, 1985
    PubMed
    Summary
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    Bone histomorphometry and bone quality.

    Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·2009

    Automated methods for bone histomorphometry reduce observer variation compared to manual techniques. Computerized analysis offers improved sensitivity and accuracy for measuring bone parameters like trabecular bone volume.

    Area of Science:

    • Bone Biology and Histology
    • Medical Imaging and Analysis
    • Orthopedics

    Background:

    • Bone histomorphometry is crucial for diagnosing metabolic bone diseases.
    • Manual measurement methods are prone to inter- and intraobserver variability.
    • Advancements in imaging technology offer potential for more objective and reproducible measurements.

    Purpose of the Study:

    • To evaluate intermethod variation in bone histomorphometric parameter measurements.
    • To compare manual techniques with automatic and semiautomatic computerized methods.
    • To assess the accuracy and sensitivity of different measurement approaches.

    Main Methods:

    • Analysis of 100 undecalcified transiliac bone biopsies.
    • Measurement of trabecular bone volume (TBV) using manual and automatic (QUANTIMET) methods.

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  • Measurement of trabecular resorption surfaces (TRS), osteoid surfaces (TOS), and volume (TOV) using manual and semiautomatic (VIDEOPLAN) methods.
  • Calcification rate (CR) measured manually and semiautomatically after tetracycline labeling.

    • Main Results:

    • Automatic and semiautomatic methods showed lower inter- and intraobserver variations than manual methods, except for TOV.
    • High correlation (r > 0.90) observed between manual and computerized methods for all parameters.
    • QUANTIMET demonstrated higher sensitivity for TBV; manual TRS underestimated low values.
    • VIDEOPLAN underestimated TOS by 13% and TOV by 26%.

    Conclusions:

    • Computer-assisted bone histomorphometry enhances measurement reproducibility and sensitivity.
    • While generally accurate, computerized methods may require calibration for specific parameters like osteoid volume.
    • These findings support the adoption of automated techniques for more reliable bone disease assessment.