Evaluation of Tissue Mimicking Quality of Tofu for Biomedical Ultrasound

Kim, Yong Tae; Kim, Ho Chul; Inada-Kim, Matthew; Jung, Sung Soo; Jho, Moon Jae; Sandstrom, Kurt

doi:10.1016/j.ultrasmedbio.2008.09.005

Cited by 14 publications

(8 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The acoustic and thermal properties of water and tofu [31], [32], [33], [34], [35], [36], [37], [38] used in the calculation are summarized in Table 1. The 100 µm thick high density polyethylene layer between the water and the tofu is thin enough to be neglected in the simulation.…”

Section: Methodsmentioning

confidence: 99%

Magnetic Resonance Thermometry at 7T for Real-Time Monitoring and Correction of Ultrasound Induced Mild Hyperthermia

et al. 2012

View full text Add to dashboard Cite

While Magnetic Resonance Thermometry (MRT) has been extensively utilized for non-invasive temperature measurement, there is limited data on the use of high field (≥7T) scanners for this purpose. MR-guided Focused Ultrasound (MRgFUS) is a promising non-invasive method for localized hyperthermia and drug delivery. MRT based on the temperature sensitivity of the proton resonance frequency (PRF) has been implemented in both a tissue phantom and in vivo in a mouse Met-1 tumor model, using partial parallel imaging (PPI) to speed acquisition. An MRgFUS system capable of delivering a controlled 3D acoustic dose during real time MRT with proportional, integral, and derivative (PID) feedback control was developed and validated. Real-time MRT was validated in a tofu phantom with fluoroptic temperature measurements, and acoustic heating simulations were in good agreement with MR temperature maps. In an in vivo Met-1 mouse tumor, the real-time PID feedback control is capable of maintaining the desired temperature with high accuracy. We found that real time MR control of hyperthermia is feasible at high field, and k-space based PPI techniques may be implemented for increasing temporal resolution while maintaining temperature accuracy on the order of 1°C.

show abstract

Section: Methodsmentioning

confidence: 99%

Magnetic Resonance Thermometry at 7T for Real-Time Monitoring and Correction of Ultrasound Induced Mild Hyperthermia

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Tofu has become a popular phantom material in many fields of biological interest including elastography (24) and ultrasound imaging (25). Tofu, also referred to as bean curd, is a food made by pressing curds from coagulated soymilk into blocks of relative homogeneity.…”

Section: Introductionmentioning

confidence: 99%

Impedance of tissue-mimicking phantom material under compression

Belmont

Dodde

Shih

2013

Journal of Electrical Bioimpedance

View full text Add to dashboard Cite

The bioimpedance of tissues under compression is a field in need of study. While biological tissues can become compressed in a myriad of ways, very few experiments have been conducted to describe the relationship between the passive electrical properties of a material (impedance/admittance) and its underlying mechanical properties (stress and strain) during deformation. Of the investigations that have been conducted, the exodus of fluid from samples under compression has been thought to be the cause of changes in impedance, though until now was not measured directly. Using a soft tissue-mimicking phantom material (tofu) whose passive electrical properties are a function of the conducting fluid held within its porous structure, we have shown that the mechanical behavior of a sample under compression can be measured through bioimpedance techniques.

show abstract

“…As the majority of free, open‐access medical education (FOAM) is targeted at high‐resource settings, consideration must be given to the technology required to translate learning into practice . For example, creating an ultrasound procedure trainer with ballistics gel may not be feasible in many countries, but tofu or gelatin may work as a substitute A lack of attention to resources is the main barrier to FOAM use in LMICs . Consider lower‐resolution/small‐size videos to promote downloading ease in countries with unreliable Internet, slower bandwidth, and higher data costs .…”

Section: Implications For Education and Training In Emmentioning

confidence: 99%

Effective Educational Videos in Emergency Medicine

Young

Guptill

Thomas

et al. 2018

AEM Education and Training

View full text Add to dashboard Cite

Video is a popular format for teaching and learning online. Emergency medicine (EM) has been a leader in online learning and EM educators may wish to use video to teach. The creation of online video content is fraught with pitfalls that may make videos less effective. We review notable theory and evidence regarding effective use of video for education in EM with international considerations. E mergency medicine (EM) has been a pioneer in the creation and dissemination of online resources for learners. 1 Video, in various forms, is a common modality for online teaching. The nature of EM puts educators in a unique position to produce videos on a breadth of topics, which may impact patient care both inside and outside of the specialty. With globalization and the continued spread of the internet, EM educators can have a worldwide educational reach. 2 While online resources proliferate, debate continues about their value. [3][4][5][6][7] Guides exist for making educational videos more effective and easier to produce. 8-10 Reviews of educational theory as it applies to video production also exist. 11,12 We aim to offer evidence-and theory-based strategies for the EM educator who wishes to pursue effective video production.

show abstract

Evaluation of Tissue Mimicking Quality of Tofu for Biomedical Ultrasound

Cited by 14 publications

References 18 publications

Magnetic Resonance Thermometry at 7T for Real-Time Monitoring and Correction of Ultrasound Induced Mild Hyperthermia

Magnetic Resonance Thermometry at 7T for Real-Time Monitoring and Correction of Ultrasound Induced Mild Hyperthermia

Impedance of tissue-mimicking phantom material under compression

Effective Educational Videos in Emergency Medicine

Contact Info

Product

Resources

About