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  1. 261
    “…Regarding the acoustic properties, the speed of sound and attenuation coefficient were employed for validation. …”
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    Bimodal microwave and ultrasound phantoms for non-invasive clinical imaging
  2. 262
    “…An agar-based phantom with measured speed of sound and densities consistent with tissues surrounding the bladder was rotated (0–45°) and translated (up to 55 mm) relative to the US and CT coordinate systems to validate this device. …”
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    An ultrasound based platform for image-guided radiotherapy in canine bladder cancer patients
  3. 263
    “…The associations of the measures of fat distribution with bone parameters, i.e., broadband ultrasound attenuation, speed of sound (SOS), and stiffness index (SI), were analyzed using multiple linear regression. …”
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    Analysis of the Association between Fat Mass Distribution and Bone Mass in Chinese Male Adolescents at Different Stages of Puberty
  4. 264
    “…The bone quality was assessed in terms of speed of sound (SOS) using the quantitative ultrasound scan (QUS). …”
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    Parathyroid hormone in Sri Lankan pregnant women: Vitamin D and other determinants
  5. 265
    por Yamaguchi, Tadashi
    Publicado 2021
    “…In this paper, typical examples of QUS techniques for evaluating attenuation, speed of sound, amplitude envelope characteristics, and backscatter coefficient in living tissues are introduced. …”
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    Basic concept and clinical applications of quantitative ultrasound (QUS) technologies
  6. 266
    “…These global observables include the Bjorken energy density ([Formula: see text] ), squared speed of sound ([Formula: see text] ) in the medium and the kinetic freeze-out properties for different collision centralities. …”
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    Event topology and global observables in heavy-ion collisions at the Large Hadron Collider
  7. 267
    “…Sound levels in third octave bands (0.5, 1, 2, 4, and 8 kHz) were measured and compared to manatee auditory hearing thresholds and to sound levels of an approaching boat traveling at a slow, medium, or fast speed. Background sound levels in a wider band (1–20 kHz) were calculated to model vocal communication space at each location. …”
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    The influence of variations in background noise on Florida manatee (Trichechus manatus latirostris) detection of boat noise and vocalizations
  8. 268
    “…Bone strength was measured using a quantitative ultrasound (QUS) of tibial bone speed of sound (SOS). Maternal vitamin D intake, medical history and lifestyle were evaluated from questionnaires. …”
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    Vitamin D Levels in Pregnant Women Do Not Affect Neonatal Bone Strength
  9. 269
    “…Finally, we predict that the Debye scaling reappears at a characteristic frequency ω(×) = vL/2π, with v the speed of sound of the material, and we confirm this quantitative estimate with simulations.…”
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    The ω(3) scaling of the vibrational density of states in quasi-2D nanoconfined solids
  10. 270
    “…METHODS: A total of 44 participants (age: 17.1 ± 1.6 years old) were randomly divided into sedentary control, weightlifting, cycling or squash groups. The bone speed of sound (SOS), muscular performance, maximal oxygen uptake (VO(2max)) and anaerobic capacities of the participants were measured. …”
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    Bone Health Status, Muscular Strength and Power, and Aerobic and Anaerobic Capacities of Malaysian Male Athletes Involved in Sports with Different Mechanical Loading on Bones
  11. 271
    “…OBJECTIVE: a) Establish reference values for bone parameters by using the speed of sound (SOS, m/s) of broadband ultrasound attenuation (BUA, dB/MHz) and establish a bone quality index (BQI = αSOS + βBUA) for children and adolescents living in a region of moderate altitude, b) compare bone parameters with an international standard (with different ethnic, socio-economic, and lifestyle backgrounds) by using ultrasound of the calcaneus (heel bone) (QUS). …”
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    Ultrasound reference values for the calcaneus of children and adolescents at moderate altitudes in Peru()
  12. 272
    “…At baseline and 12 months, BMC and BMD of the whole body, lumbar spine, and radius were measured by DXA in a longitudinal cohort of CLHIV in Johannesburg, South Africa. Calcaneal speed of sound (SOS) and broadband ultrasound attenuation (BUA) and radius SOS were obtained by QUS, and calcaneal stiffness index (SI) was calculated. …”
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    Comparison of quantitative ultrasonography and dual X-ray absorptiometry for bone status assessment in South African children living with HIV
  13. 273
    “…Quantitative ultrasound (QUS) with a portable Bone Ultrasonometer was used in this study. Speed of sound (SOS), broadband ultrasound attenuation (BUA), and the stiffness index (SI) were measured. …”
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    Quantitative Ultrasound Examination (QUS) of the Calcaneus in Long-Term Martial Arts Training on the Example of Long-Time Practitioners of Okinawa Kobudo/Karate Shorin-Ryu
  14. 274
    “…It is shown that the control parameter, which is needed in addition to the initial density and the isothermal compressibility can be found using the speed of sound and the density at ambient pressure and has a clear physical interpretation in terms of the characteristic frequency of intermolecular oscillation mimicking the limiting frequency of Debye’s theory of heat conductivity of solids. …”
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    Combining the Tait equation with the phonon theory allows predicting the density of liquids up to the Gigapascal range
  15. 275
    “…RESULTS: Women with irregular cycles (n = 41, 11%) had higher free androgen index (FAI, P = 0.01) and higher QUS measurements including speed of sound (SOS, 1%, P < 0.05), quantitative ultrasound index (QUI, 7%, p < 0.05), and broadband ultrasound attenuation (BUA, 7%, p = 0.10). …”
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    Menstrual irregularity and bone mass in premenopausal women: Cross-sectional associations with testosterone and SHBG
  16. 276
    “…There were also no associations with quantitative ultrasound measures of bone structure (broadband ultrasound attenuation, speed of sound and average stiffness). CONCLUSIONS: In a cohort of 1,022 elderly Western Australian women, the presence of Arg264Cys (rs700519) polymorphism was not found to be associated with serum estradiol, bone structure or phenotypes.…”
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    A non-synonymous coding change in the CYP19A1 gene Arg264Cys (rs700519) does not affect circulating estradiol, bone structure or fracture
  17. 277
    “…METHODS: The study included 118 Inuit women from Nuuk (Greenland), aged 49–64 years, whose QUS parameters measured at baseline (year 2000), along with PUFA status and covariates, and follow-up QUS measurements 2 years later (year 2002). QUS parameters [speed of sound (SOS); broadband ultrasound attenuation (BUA)] were measured at the right calcaneus with a water-bath Lunar Achilles instrument. …”
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    Polyunsaturated fatty acids and calcaneal ultrasound parameters among Inuit women from Nuuk (Greenland): a longitudinal study
  18. 278
    “…Serum levels of N-terminal cross-linking telopeptide of type I collagen (NTx), bone alkaline phosphatase, and intact parathyroid hormone (iPTH) were measured, and bone density was determined by quantitative heel ultrasound at the speed of sound (SOS) in the calcaneus during this period. …”
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    Effects of Raloxifene on Bone Metabolism in Hemodialysis Patients With Type 2 Diabetes
  19. 279
    “…Bone parameters (amplitude-dependent speed of sound; AD-SoS) and the Ultrasound Bone Profile Index (UBPI) were evaluated using DBM Sonic BP ultrasonography. …”
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    Cross-sectional study of the association of body composition and physical fitness with bone status in children and adolescents from 11 to 16 years old
  20. 280
    “…Phalangeal bone ultrasound was measured by amplitude-dependent speed of sound. RESULTS: Areal BMD analysis at L2–L4 revealed significant intergroup differences (p < 0.05). …”
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    Increased bone mineral density is associated with breastfeeding history in premenopausal Spanish women
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