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Correction to: Material Mapping of QCT-Derived Scapular Models: A Comparison with Micro-CT Loaded Specimens Using
Nikolas K Knowles1,2,3,4, Jonathan Kusins5,6,7, Mohammadreza Faieghi8
1School of Biomedical Engineering, The University of Western Ontario, London, ON, Canada. nknowle@uwo.ca.
Annals of Biomedical Engineering
|August 22, 2019
Summary
This study compares material mapping of QCT-derived scapular models to micro-CT specimens using digital volume correlation. Results show QCT models accurately represent bone material properties, validating their use in biomechanical analysis.
Area of Science:
- Biomechanics
- Medical Imaging
- Orthopedics
Background:
- Quantitative Computed Tomography (QCT) is increasingly used for creating patient-specific bone models.
- Validating QCT-derived models against higher-resolution imaging like micro-CT is crucial for biomechanical applications.
- Understanding material properties of scapular models is essential for surgical planning and implant design.
Purpose of the Study:
- To compare material mapping accuracy between QCT-derived scapular models and micro-CT loaded specimens.
- To assess the efficacy of Digital Volume Correlation (DVC) in analyzing these models.
- To validate QCT as a reliable method for material property assessment in scapular biomechanics.
Main Methods:
- Scapular specimens were scanned using both QCT and micro-CT.
- Digital Volume Correlation (DVC) was applied to analyze strain and displacement fields.
- Material properties derived from QCT models were compared with those from micro-CT data.
Main Results:
- QCT-derived scapular models demonstrated good correlation with micro-CT data in terms of material mapping.
- DVC successfully quantified local material behavior in both QCT and micro-CT datasets.
- The study found QCT models to be a viable alternative for material property assessment, especially for larger structures.
Conclusions:
- QCT-derived scapular models are suitable for material mapping and biomechanical analysis.
- Digital Volume Correlation is a robust tool for evaluating material properties in CT-based models.
- This validation supports the use of QCT in pre-clinical and clinical biomechanical studies of the scapula.
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