Related Experiment Video
Updated: Sep 2, 2025
08:04
Proximal Cadaveric Femur Preparation for Fracture Strength Testing and Quantitative CT-based Finite Element Analysis
Published on: March 11, 2017
9.4K
Femoral neck phantom imaging using time-domain topological energy method
Paulo Tadeu C R Rosa1, Aldo José Fontes-Pereira2, Quentin Grimal3
1Laboratório de Ultrassom, Programa de Engenharia Biomédica-COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-914, Brazil.
The Journal of the Acoustical Society of America
|August 5, 2022
Summary
This study introduces time-domain topological energy (TDTE) for clearer ultrasonic bone imaging. The method shows promise for visualizing bone structures, despite minor thickness errors in phantom models.
Area of Science:
- Biomedical Engineering
- Medical Imaging
- Acoustics
Background:
- Ultrasonic bone imaging is challenging due to low signal energy from internal bone structures.
- Accurate reconstruction of bone echographic images is crucial for diagnostic applications.
Purpose of the Study:
- To propose and evaluate a novel time-domain topological energy (TDTE) method for reconstructing bone echographic images.
- To assess the efficacy of TDTE in visualizing bone-mimicking phantom geometry.
Main Methods:
- Utilized a numerical model simulating experimental data acquisition with a 5 MHz linear phased-array transducer.
- Implemented the k-wave toolbox for numerical modeling and image reconstruction.
- Calculated TDTE images from forward and adjoint fields, incorporating time-reversed experimental signal residues.
Main Results:
- Achieved good agreement between the geometry of the bone phantom and the reconstructed ultrasonic images.
- Observed thickness evaluation errors, potentially linked to inaccurate velocity model assumptions.
- Demonstrated the potential of TDTE for improved ultrasonic bone imaging.
Conclusions:
- The TDTE method shows promising results for ultrasonic bone imaging.
- Further refinement of velocity models is needed to improve thickness accuracy.
- Future work aims to apply TDTE to real femoral neck imaging.
