PMID- 29092537
OWN - NLM
STAT- MEDLINE
DCOM- 20190710
LR  - 20190710
IS  - 1520-8524 (Electronic)
IS  - 0001-4966 (Linking)
VI  - 142
IP  - 4
DP  - 2017 Oct
TI  - Fast decomposition of two ultrasound longitudinal waves in cancellous bone using 
      a phase rotation parameter for bone quality assessment: Simulation study.
PG  - 2322
LID - 10.1121/1.5008502 [doi]
AB  - Ultrasound signals that pass through cancellous bone may be considered to consist 
      of two longitudinal waves, which are called fast and slow waves. Accurate 
      decomposition of these fast and slow waves is considered to be highly beneficial 
      in determination of the characteristics of cancellous bone. In the present study, 
      a fast decomposition method using a wave transfer function with a phase rotation 
      parameter was applied to received signals that have passed through bovine bone 
      specimens with various bone volume to total volume (BV/TV) ratios in a simulation 
      study, where the elastic finite-difference time-domain method is used and the 
      ultrasound wave propagated parallel to the bone axes. The proposed method 
      succeeded to decompose both fast and slow waves accurately; the normalized 
      residual intensity was less than -19.5 dB when the specimen thickness ranged from 
      4 to 7 mm and the BV/TV value ranged from 0.144 to 0.226. There was a strong 
      relationship between the phase rotation value and the BV/TV value. The ratio of 
      the peak envelope amplitude of the decomposed fast wave to that of the slow wave 
      increased monotonically with increasing BV/TV ratio, indicating the high 
      performance of the proposed method in estimation of the BV/TV value in cancellous 
      bone.
FAU - Taki, Hirofumi
AU  - Taki H
AD  - Graduate School of Biomedical Engineering, Tohoku University, Sendai 980-8575, 
      Japan.
FAU - Nagatani, Yoshiki
AU  - Nagatani Y
AD  - Department of Electronics, Kobe City College of Technology, Kobe 651-2194, Japan.
FAU - Matsukawa, Mami
AU  - Matsukawa M
AD  - Faculty of Science and Engineering, Doshisha University, Kyotanabe 610-0321, 
      Japan.
FAU - Kanai, Hiroshi
AU  - Kanai H
AD  - Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan.
FAU - Izumi, Shin-Ichi
AU  - Izumi SI
AD  - Graduate School of Biomedical Engineering, Tohoku University, Sendai 980-8575, 
      Japan.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Acoust Soc Am
JT  - The Journal of the Acoustical Society of America
JID - 7503051
SB  - IM
MH  - Animals
MH  - Bone Density
MH  - Cancellous Bone/*diagnostic imaging
MH  - Cattle
MH  - *Computer Simulation
MH  - Elasticity
MH  - *Models, Theoretical
MH  - Motion
MH  - *Osteogenesis
MH  - Porosity
MH  - Predictive Value of Tests
MH  - Time Factors
MH  - *Ultrasonic Waves
MH  - Ultrasonography/*methods
MH  - X-Ray Microtomography
EDAT- 2017/11/03 06:00
MHDA- 2019/07/11 06:00
CRDT- 2017/11/03 06:00
PHST- 2017/11/03 06:00 [entrez]
PHST- 2017/11/03 06:00 [pubmed]
PHST- 2019/07/11 06:00 [medline]
AID - 10.1121/1.5008502 [doi]
PST - ppublish
SO  - J Acoust Soc Am. 2017 Oct;142(4):2322. doi: 10.1121/1.5008502.