Measurement of the speed of sound in trabecular bone by using a time reversal acoustics focusing system
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Title
- Measurement of the speed of sound in trabecular bone by using a time reversal acoustics focusing system
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Author(s)
- Lee, Kang Il; Choi, Bok Kyoung
- KIOST Author(s)
- Choi, Bok Kyoung(최복경)
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Alternative Author(s)
- 최복경
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Publication Year
- 2014-10
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Abstract
- A new method for measuring the speed of sound (SOS) in trabecular bone by using a time reversal acoustics (TRA) focusing system was proposed and validated with measurements obtained by using the conventional pulse-transmission technique. The SOS measured in 14 bovine femoral trabecular bone samples by using the two methods was highly correlated each other, although the SOS measured by using the TRA focusing system was slightly lower by an average of 2.2 m/s. The SOS measured by using the two methods showed high correlation coefficients of r = 0.92 with the apparent bone density, consistent with the behavior in human trabecular bone in vitro. These results prove the efficacy of the new method based on the principle of TRA to measure the SOS in trabecular bone.
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ISSN
- 0374-4884
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/2707
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DOI
- 10.3938/jkps.65.1036
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Bibliographic Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.65, no.7, pp.1036 - 1039, 2014
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Publisher
- KOREAN PHYSICAL SOC
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Subject
- ULTRASONIC CHARACTERIZATION; BACKSCATTER MEASUREMENTS; IN-VITRO; TRANSMISSION; DENSITY
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Keywords
- Osteoporosis; Trabecular bone; Apparent bone density; Ultrasound; Speed of sound; Time reversal acoustics
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Type
- Article
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Language
- English
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Document Type
- Article
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