Ultrasound propagation speed measurement of mimicking soft tissue phantoms based on agarose in the range of 25&amp;#x00B0;C to 50&amp;#x00B0;C

Lopez-Haro, S. A.; Bazan-Trujillo, I.; Salas, Lorenzo Leija; Vera, A.

doi:10.1109/iceee.2008.4723439

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…The measurement setup is designed in such a way that the electromagnet and the ultrasonic transducer point to the tissue mimicking phantom from opposite directions (see Figure 2). It is known that agarose [10] and polyvinyl alcohol [11], which is used in our work, are suitable to be utilized as tissue mimicking material in medical ultrasound applications. The phantom contains both particle-free and particle-loaded tissue.…”

Section: Measurement Setupmentioning

confidence: 99%

Quantitative Imaging of the Iron-Oxide Nanoparticle- Concentration for Magnetic Drug Targeting Employing Inverse Magnetomotive Ultrasound

Fink¹,

Lyer

Alexiou

et al. 2019

Current Directions in Biomedical Engineering

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Magnetomotive Ultrasound is an imaging technique that is capable to detect tissue, which is perfused by magnetic nanoparticles. However, this modality is restricted to qualitative imaging only. Therefore, we present an extended Magnetomotive Ultrasound algorithm, which allows the quantitative determination of the spatial distribution of magnetic nanoparticle density in tissue. The algorithm is based on an iterative adjustment of simulated data to measurements. Experiments with tissue-mimicking phantoms reveal that the presented method leads to the spatial particle concentration in the correct order of magnitude.

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Section: Measurement Setupmentioning

confidence: 99%

Quantitative Imaging of the Iron-Oxide Nanoparticle- Concentration for Magnetic Drug Targeting Employing Inverse Magnetomotive Ultrasound

Fink¹,

Lyer

Alexiou

et al. 2019

Current Directions in Biomedical Engineering

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“…The measurement for ultrasound speed was made by using Sonic Waves Analyser (SWA). The Multichannel Analyser (MCA) software and collimated radiation beam photon from a 241 Am source were used to measure the linear attenuation coefficient, µ of the polymer gel [8]. Furthermore, density measurement showed that this polymer gel phantom is equivalent to human soft tissue.…”

Section: Introductionmentioning

confidence: 99%

Ultrasound Speed of Polymer Gel Mimicked Human Soft Tissue within Three Weeks

Othman¹,

Jaafar²,

Rahman³

et al. 2011

IJBBB

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Abstract-A Polymer gel mimicked human soft tissue was being fabricated using a monomer named 2-Hydroxyl-Ethyl-Acrylate (HEA) with the present of gelatin. The readymade gel which is the concentration for HEA fixed at 5% was then undergoes an ultrasonic evaluation to test for the propagation of sound speed through it. Sonic Waves Analyzer is absolutely the most accurate technique to determine the aims (changes of speed as function of polymer structure /stiffness over time). The fixed frequency of transducers involved is at 500 kHz by using the seismic reflection concept. In the observation of relationship between the ultrasound propagation speeds as the day increased, the propagation speed still varies between 1390 to 1500 m/s which is still in the range of speed of sound for human tissue.Index Terms-Tissue mimicking, ultrasound phantom, abdominal ultrasound, ultrasound propagation speed

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“…The exact match of the elasticity of the phantom to soft tissue is not the focus of the study. Since human soft tissues are complex and ultrasound travels through different soft tissue layers in varying velocities, it is common to use an average ultrasound velocity in medical ultrasound imaging [67,98]. The ultrasound velocity is measured at the beginning of the phantom experiment for thickness estimation.…”

Section: Phantom Constructionmentioning

confidence: 99%

A Method to Characterize Skeletal Muscle Contractile Properties Using a Wearable Ultrasonic Sensor

Yeung¹

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Skeletal muscle monitoring provides valuable information about the muscle contractile properties which could be useful in various clinical applications. A wearable ultrasonic sensor (WUS) was constructed using a 110 µm thick polyvinylidene fluoride polymer piezoelectric film to perform a continuous hands-free muscle monitoring. The lightweight and flexible properties of WUS enables the stable attachment to the skin surface without affecting the tissue motion of interest, which results in reduced motion artifacts. In order to perform reliable estimation of tissue thicknesses by the WUS in an ultrasonic pulse echo mode, the accuracy of selected signal analysis techniques was evaluated using a laser displacement measurement result as a reference. Then, a mechanical simulation experiment is conducted to evaluate the accuracy and repeatability of the WUS measurement system. In addition, the effects of moving averaging on the signal-to-noise ratio of the ultrasonic signals and the estimation accuracy of the tissue thickness were investigated. In order to demonstrate the feasibility of the proposed ultrasound technique for in-vivo measurements, continuous monitoring of the lateral head of triceps muscle of three healthy male subjects were monitored using the WUS. The tissue thickness changes due to the evoked muscle contraction by an electromyostimulation (EMS) at various pulse repetition frequencies were monitored. I thank Mr. Alex Proctor for assisting and technical supporting me in designing the mechanical phantom. I would like to thank my friends, Mr. Dipayan Mitra, Mr. Sean Trudel, and Mr. Shanmugaraja K.V who helped me in all possible ways. I would also like to thank Carleton University for supporting the work. I would like to express my gratitude towards my parents and my brother for their unwavering support.

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Ultrasound propagation speed measurement of mimicking soft tissue phantoms based on agarose in the range of 25°C to 50°C

Cited by 8 publications

References 4 publications

Quantitative Imaging of the Iron-Oxide Nanoparticle- Concentration for Magnetic Drug Targeting Employing Inverse Magnetomotive Ultrasound

Quantitative Imaging of the Iron-Oxide Nanoparticle- Concentration for Magnetic Drug Targeting Employing Inverse Magnetomotive Ultrasound

Ultrasound Speed of Polymer Gel Mimicked Human Soft Tissue within Three Weeks

A Method to Characterize Skeletal Muscle Contractile Properties Using a Wearable Ultrasonic Sensor

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