Evaluation and verification of the accuracy of computed tomography image-based material properties of femur bone using a computational model and comparison with the mathematical power-law model

R. A. Gujar, H. N. Warhatkar, A. R. Kale

Abstract: The present study has evaluated the computational apparent mass density and elastic modulus of human femur bone using the ScanIP software. In addition, the study has performed to verify the accuracy between the computational model and the available mathematical power-law model. In computational model, the apparent mass density and apparent elastic modulus of femur bone have assessed using a material mapping technique by importing the non-invasive computed tomography scan data in ScanIP software. Mathematical model available in the literature has been used to evaluate the material properties such as apparent mass density and apparent elastic modulus of the same femur bone specimens. However, the femur bone apparent mass density has evaluated from the Hounsfield unit. This study includes the twenty samples of femur bone computed tomography scan data to evaluate the material properties. It is found that the results have in good agreement with well-established mathematical power-law model. The statistical linear regression analysis is used to obtained the coefficient of determination (R2= 0.99). Hence, no significant difference in predicted accuracy was found between the two models.

Series on Biomechanics, Vol.35 No.3 (2021), 33-45

Keywords: apparent mass density; computed tomography; elastic modulus; Femur bone; hounsfield unit

Date published: 2021-10-26