@article{QIMS16937,
author = {Marcello H. Nogueira-Barbosa and Hermes Arytto Salles Kamimura and Guilherme Braz and Paulo M. Agnollitto and Antonio Adilton Oliveira Carneiro},
title = {Preliminary results of vibro-acoustography evaluation of bone surface and bone fracture},
journal = {Quantitative Imaging in Medicine and Surgery},
volume = {7},
number = {5},
year = {2017},
keywords = {},
abstract = {Background: Vibro-acoustography (VA) uses two co-focused ultrasound beams with slightly different frequencies. The beams interact and generate a low-frequency focus to excite an object.
Methods: A two-element confocal ultrasound transducer with central frequency at 3.2 MHz was used to generate the low-frequency excitation (30 kHz) and the response of the bone to that excitation was acquired by a dedicated hydrophone. The face of the confocal transducer was positioned parallel to the surface of the bone at a focal length of 7 cm. The hydrophone was fixed to the side of the transducer, out of the path of the ultrasonic beam.
Results: The resulting image clearly showed the bone fracture with resolution of 0.25 mm and high contrast with well-defined borders.
Conclusions: In this paper, we present preliminary results of VA imaging of bone surface and of bone fracture using an experimental set-up. Our results encourage future studies using VA to evaluate bone fractures.},
issn = {2223-4306}, url = {https://qims.amegroups.org/article/view/16937}
}