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Wave propagation in stereo-lithographical (STL) bone replicas at oblique incidence |
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| Authors: | Haydar Aygün Keith Attenborough Walter Lauriks Philip A Rubini Christian M Langton |
| Institution: | aMedical Physics, PGMI, The University of Hull, Cottingham Rd, HU6 7RX, Hull, UK;bDepartment of Design, Development, Environment and Materials, The Open University, Milton Keynes, MK7 6AA, UK;cLaboratorium voor Akoestiek en Thermische Fysica, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-3001 Heverlee, Belgium;dEngineering Department, The University of Hull, Cottingham Rd, HU6 7RX, Hull, UK;eMedical Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD 4001, Australia |
| Abstract: | Comparisons between predictions of a Biot-Allard model allowing for angle-dependent elasticity and angle-and-porosity dependent tortuosity and transmission data obtained at normal incidence on water-saturated replica bones are extended to oblique incidence. The model includes two parameters which are adjusted for best fit at normal incidence. Using the same parameter values, it is found that predictions of the variation of transmitted waveforms with angle through two types of bone replica are in reasonable agreement with data despite the fact that scattering is not included in the theory. |
| Keywords: | Ultrasound Wave propagation Bone Biot theory Oblique incidence |
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