Temperature and frequency dependence of ultrasonic attenuation in selected tissues

Gammell, Paul M.; Croissette, D. H. Le; Heyser, Richard C.

doi:10.1016/0301-5629(79)90018-8

Cited by 64 publications

(34 citation statements)

References 13 publications

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“…The use of echo shifts and changes in backscattered energy are the most promising techniques for estimating temperatures in the hyperthermia (41)(42)(43)(44)(45) C) range. In this brief review of ultrasonic methods for estimating hyperthermia temperatures with ultrasound, the preprocessing step that is common to these methods has been emphasized, namely the tracking of apparent and actual motion of scattering regions.…”

Section: Discussionmentioning

confidence: 99%

“…Temperature dependence of ultrasonic tissue parameters has been reported extensively from in vitro analyses of ultrasonic tissue characteristics [40][41][42][43][44][45][46][47][48][49][50]. These early investigators looked at changes in tissue characteristics with temperature in order to evaluate thermal errors in tissue characterization.…”

Section: Ultrasonic Measurement Of Temperaturementioning

confidence: 99%

“…Hyperthermia is a cancer treatment in which tumours are elevated to cytotoxic temperatures (41)(42)(43)(44)(45) C) in order to aid in their control [1,2]. Hyperthermia has also been shown to be a viable adjunct to chemotherapy and radiotherapy [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…It concentrates on approaches that appear to have the greatest potential for monitoring temperatures in the hyperthermia (41)(42)(43)(44)(45) C) range.…”

Section: Introductionmentioning

confidence: 99%

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Non-invasive estimation of hyperthermia temperatures with ultrasound

Arthur

Straube

Trobaugh

et al. 2005

International Journal of Hyperthermia

206

134

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Ultrasound is an attractive modality for temperature monitoring because it is non-ionizing, convenient, inexpensive and has relatively simple signal processing requirements. This modality may be useful for temperature estimation if a temperature-dependent ultrasonic parameter can be identified, measured and calibrated. The most prominent methods for using ultrasound as a non-invasive thermometer exploit either (1) echo shifts due to changes in tissue thermal expansion and speed of sound (SOS), (2) variation in the attenuation coefficient or (3) change in backscattered energy from tissue inhomogeneities. The use of echo shifts has received the most attention in the last decade. By tracking scattering volumes and measuring the time shift of received echoes, investigators have been able to predict the temperature from a region of interest both theoretically and experimentally in phantoms, in isolated tissue regions in vitro and preliminary in vivo studies. A limitation of this method for general temperature monitoring is that prior knowledge of both SOS and thermalexpansion coefficients is necessary. Acoustic attenuation is dependent on temperature, but with significant changes occurring only at temperatures above 50 C, which may lead to its use in thermal ablation therapies. Minimal change in attenuation, however, below this temperature range reduces its attractiveness for use in clinical hyperthermia. Models and measurements of the change in backscattered energy suggest that, over the clinical hyperthermia temperature range, changes in backscattered energy are dependent on the properties of individual scatterers or scattering regions. Calibration of the backscattered energy from different tissue regions is an important goal of this approach. All methods must be able to cope with motion of the image features on which temperature estimates are based. A crucial step in identifying a viable ultrasonic approach to temperature estimation is its performance during in vivo tests.

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Section: Discussionmentioning

confidence: 99%

Section: Ultrasonic Measurement Of Temperaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…It concentrates on approaches that appear to have the greatest potential for monitoring temperatures in the hyperthermia (41)(42)(43)(44)(45) C) range.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Non-invasive estimation of hyperthermia temperatures with ultrasound

Arthur

Straube

Trobaugh

et al. 2005

International Journal of Hyperthermia

206

134

View full text Add to dashboard Cite

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“…36 Temperature dependence of ultrasonic tissue parameters has been reported extensively from in vitro analyses of ultrasonic tissue characteristics. [194][195][196][197] These early investigators studied changes in tissue characteristics with temperature in order to evaluate thermal errors in tissue characterization.…”

Section: Apparatusmentioning

confidence: 99%

Thermal Therapy, Part IV: Electromagnetic and Thermal Dosimetry

Habash

Bansal

Krewski

et al. 2007

Crit Rev Biomed Eng

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ABSTRACT:In this article some of the important techniques in electromagnetic (EM) and thermal dosimetry are reviewed. Three major areas are discussed: modeling power deposition and estimation of EM energy absorbed by tissues exposed to EM radiation, electrical-thermal modeling for thermal therapy with various models of heat transfer in living tissues, and thermal dosimetry using invasive and noninvasive thermometry. Knowledge about the temperature distributions achieved can only be obtained by treatment planning of patient therapy. This process is called thermal therapy planning system (TTPS), which is a large and complex system for design, control, documentation, and evaluation of the treatment that also provides data for treatment optimization. Various imaging techniques for guidance and monitoring necessary for clinical treatments are also discussed. The review concludes by suggesting future avenues for investigations.

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Acoustic Properties

Jarzynski¹,

Balizer²,

Fedderly³

et al. 2003

Encyclopedia of Polymer Science and Technology

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This article covers the use of acoustics as a molecular probe of polymer structure and describes various acoustic applications of polymers. Sound speed and sound absorption measurements in polymers are useful both as a probe of the molecular structure of polymers and as a source of engineering design properties. Enough theory and experimental details are given to make the presentation understandable, but the emphasis is on the experimental results for polymers. Most of the presentation is for small‐amplitude waves in solid polymers. References to some specialized topics are given.

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Temperature and frequency dependence of ultrasonic attenuation in selected tissues

Cited by 64 publications

References 13 publications

Non-invasive estimation of hyperthermia temperatures with ultrasound

Non-invasive estimation of hyperthermia temperatures with ultrasound

Thermal Therapy, Part IV: Electromagnetic and Thermal Dosimetry

Acoustic Properties

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