<i>In Vivo</i> Temperature Dependence of Ultrasound Speed in Tissue and its Application to Noninvasive Temperature Monitoring

Nasoni, R. L.; Bowen, T.; Connor, William; Sholes, R. R.

doi:10.1177/016173467900100103

Cited by 39 publications

(14 citation statements)

References 11 publications

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“…Muscle is the major constituent of intercostal tissue. Muscle has a weak temperature-dependent attenuation coefficient that ranges between −0.006 dB/cm/ • C for canine heart muscle [31] and +0.04 dB/cm/ • C for bovine skeletal muscle [32]; and it has a relatively strong temperature-dependent propagation speed that ranges between +0.6 m/s/ • C for canine skeletal muscle [33] and +2.9 m/s/ • C for bovine skeletal muscle [32]. No reports are known for skin, but generally the temperature-dependent attenuation coefficient and propagation speed for most soft tissues are in the ranges of those just reported [29], that is, about −0.05 dB/cm/ • C and about +1 m/s/ • C, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…Mean Percentages of Intercostal Tissue Constituents for Rats [22] and for Pigs [30]. tween −2 and −3 m/s/ • C for canine stomach fat [33] and between −7 and −8 m/s/ • C for bovine peritoneal fat [35]. Thus, fat, which constitutes about one-quarter of intercostal tissue, suggests a negative temperature dependency for both attenuation coefficient and propagation speed.…”

Section: Table IIImentioning

confidence: 99%

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Attenuation coefficient and propagation speed estimates of rat and pig intercostal tissue as a function of temperature

Towa

Miller

Frizzell

et al. 2002

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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Attenuation coefficient and propagation speed of intercostal tissues were estimated as functions of temperature (22, 30, and 37 C) from fresh chest walls from eight 10-to 11-week-old female Sprague-Dawley (SD) rats, eight 21-to 24-week-old female Long-Evans (LE) rats, and ten 6-to 10-week-old mixed sex Yorkshire (York) pigs. The primary purpose of the study was to estimate the temperature dependence of the intercostal tissue's attenuation coefficient so that accurate estimates of the in situ (at the pleural surface) acoustic pressure levels could be made for our ultrasound-induced lung hemorrhage studies. The attenuation coefficient of intercostal tissue for both species was independent of the temperature at the discrete frequencies of 3.1 MHz (;0.0076, 0.0065, and 0.016 dB/cm/ C for SD rats, LE rats, and York pigs, respectively) and 6.2 MHz (;0.015, 0.014, and 0.014 dB/cm/ C for SD rats, LE rats, and York pigs, respectively). However, the temperaturedependent regressions yielded a significant temperature dependency of the intercostal tissue attenuation coefficients in SD and LE rats (over the 3.1 to 9.6 MHz frequency range); there was no temperature dependency in York pigs (over the 3.1 to 8.6 MHz frequency range). There was no significant temperature dependency of the intercostal tissue propagation speed in SD rats; there was a temperature dependency in LE rats and York pigs (;0.59, ;1.6, and ;2.9 m/s/ C for SD rats, LE rats, and York pigs, respectively). Even though the attenuation coefficient's temperature dependency was significant from the linear regression functions, the differences were not very great (;0.040 to ;0.13, 0.011 to 0.18, and 0.055 to 0.10 dB/cm/ C for SD rats, LE rats, and York pigs, respectively, over the data frequency range). These findings suggest that it is not necessary to determine the attenuation coefficient of intercostal tissue at body temperature (37 C), but rather it is sufficient to determine the attenuation coefficient at room temperature (22 C), a much easier experimental procedure.

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Section: Discussionmentioning

confidence: 99%

Section: Table IIImentioning

confidence: 99%

Attenuation coefficient and propagation speed estimates of rat and pig intercostal tissue as a function of temperature

Towa

Miller

Frizzell

et al. 2002

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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“…In most methods based on the application of diagnostic ultrasound for temperature monitoring, the temperature dependence of the speed of sound is used [2]. This dependence leads to a shift in the image of the organ subjected to thermal impact.…”

Section: Introductionmentioning

confidence: 99%

In-vitro study of the temperature dependence of the optoacoustic conversion efficiency in biological tissues

Nikitin¹,

Khokhlova²,

Pelivanov³

2012

Quantum Electron.

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The applicability of the optoacoustic (OA) method for monitoring temperature during thermal impact on biological tissues is studied experimentally. Tissues under study were chicken breast (as a model of muscle), porcine lard (as a model of fatty tissue) and porcine liver (as a model of richly perfused tissue). The temperature dependences of the amplitude of the OA signals excited in biologi cal tissues were measured in-vitro in the temperature range of 20 -80 °C under the narrow laser beam conditions. Measurements were performed in two regimes: during heating and cooling. Simi larities and differences in the behaviour of the dependences in dif ferent temperature ranges associated with different structural com position of the samples were obtained. The accuracy of temperature reconstruction from experimental data for the investigated tissue types was evaluated. It is shown that during tissue coagulation its temperature can be determined with an accuracy of about 1 °C.

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“…For example, ultrasound propagating through biological tissues can be readily focused because of the short wavelengths involved, thus improving the spatial resolution. The speed of propagation and the attenuation properties of ultrasound propagating through biological tissues are significant functions of temperature, suggesting that temperature could be measured in principle [Goss et al, 1978;Nasoni et al, 1979;Bamber and Hill, 19791. Preliminary investigations based on the temperature dependence of the speed of propagation of ultrasound in biological tissues have yielded promising results [Sachs, 1975;Sachs et al, 1975;Sachs and Janney, 19771.…”

Section: Discussionmentioning

confidence: 99%

Noninvasive thermometry using multiple‐frequency‐band radiometry: A feasibility study

Prionas¹,

Hahn²

1985

Bioelectromagnetics

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The potential use of multiple-frequency-band radiometry as a means of noninvasive sensing of one-dimensional temperature profiles is presented in this communication. The radiative energy transfer equation is solved numerically. Ideal-condition thermal noise spectra and distributions of received energy, associated with specific temperature-depth profiles, are presented. Performance characteristics are discussed.

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In Vivo Temperature Dependence of Ultrasound Speed in Tissue and its Application to Noninvasive Temperature Monitoring

Cited by 39 publications

References 11 publications

Attenuation coefficient and propagation speed estimates of rat and pig intercostal tissue as a function of temperature

Attenuation coefficient and propagation speed estimates of rat and pig intercostal tissue as a function of temperature

In-vitro study of the temperature dependence of the optoacoustic conversion efficiency in biological tissues

Noninvasive thermometry using multiple‐frequency‐band radiometry: A feasibility study

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