An Acoustic backscatter-based method for estimating attenuation towards monitoring lesion formation in high intensity focused ultrasound

Rahimian, Siavash; Tavakkoli, Jahan

doi:10.1121/1.4707975

Cited by 3 publications

(2 citation statements)

References 75 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[18] Ultrasound is a convenient, non-ionizing, and inexpensive method with less calculation requirements for temperature monitoring. The methods of using ultrasound as a temperature monitor involve measuring the sound attenuation coefficient, [19,20] measuring echo-shift deviation in tissue thermal expansion, [21,22] and measuring the backscattered energy difference of tissue in homogeneities. [23] Several research centers in the world are working on constructing a prototype of ultrasonic transmission tomography for women's breast examination.…”

Section: Introductionmentioning

confidence: 99%

Adaptive optimization on ultrasonic transmission tomography-based temperature image for biomedical treatment

et al. 2017

View full text Add to dashboard Cite

Hyperthermia has proven to be beneficial to treating superficial malignancies, particularly chest wall recurrences of breast cancer. During hyperthermia, monitoring the time-temperature profiles in the target and surrounding areas is of great significance for the effect of therapy. An ultrasound-based temperature imaging method has advantages over other approaches. When the temperature around the tumor is calculated by using the propagation speed of ultrasound, there always exist overshoot artifacts along the boundary between different tissues. In this paper, we present a new method combined with empirical mode decomposition (EDM), similarity constraint, and continuity constraint to optimize the temperature images. Simulation and phantom experiment results compared with those from our previously proposed method prove that the EMD-based method can build a better temperature field image, which can adaptively yield better temperature images with less computation for assistant medical treatment control.

show abstract

Section: Introductionmentioning

confidence: 99%

Adaptive optimization on ultrasonic transmission tomography-based temperature image for biomedical treatment

et al. 2017

View full text Add to dashboard Cite

show abstract

“…[26] Ultrasound is a non-ionizing, convenient and inexpensive modality with relatively simple signal processing requirements, which makes it an attractive method to be used for temperature monitoring. Methods of using ultrasound as a temperature measurement include those that measure echo-shift changes in tissue thermal expansion and the speed of sound, [27,28] those that measure the acoustic attenuation coefficient, [29,30] and those that exploit the change in backscattered energy (CBE) [31] from tissue in homogeneities. However, the prior knowledge of the speed of sound (SOS) and thermal expansion coefficient are necessary if the echoshift method is employed.…”

Section: Introductionmentioning

confidence: 99%

Temperature imaging with speed of ultrasonic transmission tomography for medical treatment control: A physical model-based method

Chu¹,

Yuan²,

Pintér³

et al. 2015

Chinese Phys. B

View full text Add to dashboard Cite

Hyperthermia is a promising method to enhance chemo and radiation therapy of breast cancer. In the process of hyperthermia, temperature monitoring is of great importance to assure the effectiveness of treatment. The transmission speed of ultrasound in biomedical tissue changes with temperature. However, when mapping the speed of sound directly to temperature in each pixel as desired for using all speeds of ultrasound data, temperature bipolar edge enhancement artifacts occur near the boundary of two tissues with different speeds of ultrasound. After the analysis of the reasons for causing these artifacts, an optimized method is introduced to rebuild the temperature field image by using the continuity constraint as the judgment criterion. The significant smoothness of the rebuilding image in the transitional area shows that our proposed method can build a more precise temperature image for controlling the medical thermal treatment.

show abstract

Dynamic Changes in the Acousto-Mechanical and Statistical Parameters of Tissue During High Intensity Focused Ultrasound (Hifu) Treatment

Rangraz

Behnam

Bidari

et al. 2014

Biomed. Eng. Appl. Basis Commun.

View full text Add to dashboard Cite

High intensity focused ultrasound (HIFU) induces focalized tissue coagulation by increasing the tissue temperature in a tight focal region and has been successfully used as a new technique of tumor treatment or to stop bleeding in clinical applications. The main challenges of this technique are: adjusting the location of HIFU thermal ablation exactly at the region of interest, and controlling the level of thermal ablation. Several imaging methods have been proposed to monitor HIFU-induced thermal lesions such as X-ray, MRI and ultrasound imaging. Currently, ultrasound imaging techniques that are clinically used for monitoring HIFU treatment are standard pulse-echo B-mode ultrasound imaging, ultrasound temperature estimation, and elastography-based methods. This study was carried on ex vivo animal tissue samples. Backscattered radio frequency (RF) signals were acquired in real-time including before, during and after HIFU treatment. In this study, first we estimate the dynamic changes in the acoustical, mechanical and statistical parameters of the tissue resulted from HIFU exposures with three different acoustic powers. Then, we use these parameters to detect the induced HIFU thermal lesions and monitor the treatment process. By estimating the standard deviation of the studied parameters along acquired RF data frames, we show that there are significant changes in the tissue properties during the HIFU treatment.

show abstract

An Acoustic backscatter-based method for estimating attenuation towards monitoring lesion formation in high intensity focused ultrasound

Cited by 3 publications

References 75 publications

Adaptive optimization on ultrasonic transmission tomography-based temperature image for biomedical treatment

Adaptive optimization on ultrasonic transmission tomography-based temperature image for biomedical treatment

Temperature imaging with speed of ultrasonic transmission tomography for medical treatment control: A physical model-based method

Dynamic Changes in the Acousto-Mechanical and Statistical Parameters of Tissue During High Intensity Focused Ultrasound (Hifu) Treatment

Contact Info

Product

Resources

About