Effect of Slice Step Size on Prediction of Natural Vibration Properties of Bone Tissue

Gokhan Altintas

doi:10.3390/mca17030235

Abstract

Several vibration analysis procedures are used for determination of the level of bone loss, status of implant stability, modal damping factor and numerous other properties of tissues. The detection methods of bone properties are to compare the results of theoretical work with practical results. So, there are many options for processing of image data and establishing the finite element (FE) model that differentiation of calculated outputs is inevitable. Uncertainty of outputs can lead to mistakes while mechanical parameters or behaviors of tissue are determined. In this study, the effect of Micro-CT scanning intensity in connection with the reconstruction process on properties of the modal behavior of bone tissue were investigated. Results have shown that examined parameters have important effects on numerical values of the natural frequencies and modal behaviors. Furthermore, it has been revealed that numerical values and mode shapes must be considered together for properly understanding the natural vibration analysis of bone tissue.

Highlights

The usage of the detection methods with vibration and vibration properties of bones is important for bone diseases
Segmentation and reconstruction procedures are used in its simplest form for focusing only effect of slice thickness secondary algorithms like surface smoothing and others are not used in analyses
This assignment was explained the central importance of slice thickness in free vibration properties of cancellous bone

Summary

Introduction

The usage of the detection methods with vibration and vibration properties of bones is important for bone diseases. Investigations published by Cornelissen et al [1, 2] and Van der Perre and Lowet [3, 4] mainly studied the determination of free vibration frequencies and corresponding mode shapes of human bones, the tibia and the radius. Determination of mechanical properties of bone tissue has a key role in diagnosis and treatment of bone diseases. The role of natural frequency of bone for detection of bone fracture healing was investigated by Singh et al [7]. Kotha et al [10] examined if high frequency ultrasound impedance measurements could forecast the mechanical properties of bones where the amount of bone minerals was varied. Bediz et al [12] set vibration

Methods

Results

Conclusion