Uncertainty evaluation from non-invasive estimation of temperature variation using B-mode ultrasonic images from a plastic phantom

Alvarenga, André Victor; Teixeira, César; Krüger, Marco; Pereira, Wagner Coelho de Albuquerque; Costa-Félix, Rodrigo Pereira Barretto da

doi:10.1016/j.measurement.2015.03.038

Cited by 8 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, these factors are not independent each other during the application of GAC. They always exist and affect each other that can't clear explained at present experimental condition [23,24].…”

Section: Influencing Factors Analysismentioning

confidence: 92%

Relationships between B-mode ultrasound imaging signals and suspended sediment concentrations

et al. 2016

View full text Add to dashboard Cite

Ultrasound imaging technique is applied to river model test in recent years, but the imaging features and inner relationships of sediments are still waiting for further study. This paper proposes some new relationships between B-mode ultrasound imaging signals and suspended sediment concentrations (SSC) after kinds of model experiments are conducted in a glass flume. And the influences of particle size, sediment material, ultrasonic frequency and flow velocity on the relationships are discussed in practical applications. Results show that the imaging area concentration (IAC), gray area concentration (GAC) and gray energy density (GED) of sediment imaging signals increase with the addition of sediments until images are filled with imaging signals. The GAC is the best one because of the widest variation range and better sensitivity when compared with the IAC. The GED is the most sensitive to the change of SSC, but it is easiest to reach saturation. The relationship between the GAC and actual SSC can be used to estimate unknown SSC and its vertical distribution when the concentration is below 4.0 ‰ with advantages of direct observation and real time.

show abstract

Section: Influencing Factors Analysismentioning

confidence: 92%

Relationships between B-mode ultrasound imaging signals and suspended sediment concentrations

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The physical properties of the tissue used in diagnostic ultrasound originates from scattering processes. Tissue identification and clinical diagnosis performed by the observation of scattered ultrasound [ 12 ]. The B-mode contrast observed from tissue is caused by physical phenomenon called “ultrasound scattering”, and the scattering properties of tissues can be defined quantitatively by using two statistical parameters, i.e., velocity fluctuation coefficient and correlation length [ 13 ].…”

Section: Methodsmentioning

confidence: 99%

Correlations between B-mode ultrasound image texture features and tissue temperatures in hyperthermia

Wang

Sheng²

2022

PLoS ONE

View full text Add to dashboard Cite

Purpose The noninvasive monitoring of mild hyperthermia or thermal ablation is important to guarantee therapeutic safety and efficacy. The potential of ultrasound B-mode image texture features in monitoring temperature or coagulation zones studied in this article. Materials and methods The experiments carried out on eighteen in vitro porcine liver samples heated from 20°C to 60°C in the water bath. The ultrasound radiofrequency signal at different temperature collected to reconstruct B-mode ultrasound images. The texture features based on gray level histogram (GLH), gray level co-occurrence matrix (GLCM), and gray level-gradient co-occurrence matrix (GGCM) extracted, respectively. Accordingly, we analyze the correlations between these texture features and temperature based on the experiment results. Results The results showed that five texture feature parameters closely related to temperature, including mean gray scale of GLH, homogeneity of GLCM, hybrid entropy, inverse difference moment, and correlation of GGCM. Some of these feature parameters have correlation coefficients larger than 0.9 within the temperature range of 20°C to 60°C. Conclusions The above-mentioned five feature parameters expected to apply for noninvasive monitoring of MH or TA.

show abstract

“…It was observed that AVGL had the ability to track temperature both in time and in space. Alvarenga et al 39 established a regression model of AVGL-temperature relationship by using WBH plastic phantoms and assessed its uncertainty. 40 They observed a linear relationship of 2.03°C/AVGL between the AVGL and temperature variation, and estimated an expanded uncertainty of 0.36°C/AVGL.…”

Section: Ultrasonic Backscattered Energymentioning

confidence: 99%

A Review of Quantitative Ultrasound-Based Approaches to Thermometry and Ablation Zone Identification Over the Past Decade

Zhou

et al. 2022

Ultrason Imaging

View full text Add to dashboard Cite

Percutaneous thermal therapy is an important clinical treatment method for some solid tumors. It is critical to use effective image visualization techniques to monitor the therapy process in real time because precise control of the therapeutic zone directly affects the prognosis of tumor treatment. Ultrasound is used in thermal therapy monitoring because of its real-time, non-invasive, non-ionizing radiation, and low-cost characteristics. This paper presents a review of nine quantitative ultrasound-based methods for thermal therapy monitoring and their advances over the last decade since 2011. These methods were analyzed and compared with respect to two applications: ultrasonic thermometry and ablation zone identification. The advantages and limitations of these methods were compared and discussed, and future developments were suggested.

show abstract

Uncertainty evaluation from non-invasive estimation of temperature variation using B-mode ultrasonic images from a plastic phantom

Cited by 8 publications

References 16 publications

Relationships between B-mode ultrasound imaging signals and suspended sediment concentrations

Relationships between B-mode ultrasound imaging signals and suspended sediment concentrations

Correlations between B-mode ultrasound image texture features and tissue temperatures in hyperthermia

A Review of Quantitative Ultrasound-Based Approaches to Thermometry and Ablation Zone Identification Over the Past Decade

Contact Info

Product

Resources

About