【摘 要】
：
Background, Motivation and Objective Nakagami distribution is used to model the statistical properties of backscatted echoes in tissue. The proper estimate requires the compensation of attenuation alo
【机 构】
：
Ultrasound Department, Institute of Fundamental Technological Research PAS, Warsaw, Poland
论文部分内容阅读
Background, Motivation and Objective Nakagami distribution is used to model the statistical properties of backscatted echoes in tissue. The proper estimate requires the compensation of attenuation along each scanning line. Attenuation of the wave results in decreasing of the Nakagami scale parameter Ω (mean intensity) with depth; this phenomenon violates the assumption that samples amplitudes within ROI are identically distributed. In this paper the impact of attenuation on estimation of Nakagami shape parameter m, used for lesion characterization, will be discussed. Three different methods are proposed to solve this issue.
其他文献
Background, Motivation and Objective Previous studies performed in our lab in a mouse model of cancer have shown that microbubble-mediated ultrasound therapy (MB-US) can enhance the accumulation of na
Background, Motivation and Objective Functionalised nanoparticles (NP) have been shown to enable delivery of small silencing RNA molecules (siRNA) to cancer cells, disabling proliferation and providin
Background, Motivation and Objective Ultrasound contrast agents (UCAs) have been recently studied for drug delivery applications, since cavitation can increase the temporary permeability of nearby cel
Background, Motivation and Objective The purpose of this work was to investigate whether low frequency, low intensity (LFLI, 20 kHz, ＜100 mW/cm2, spatial peak, temporal peak) ultrasound (US), delivere
Background, Motivation and Objective Focused ultrasound (FUS) combined with microbubbles is an attractive method to deliver therapeutic agents to brain tissue noninvasively, transiently and locally. R
Background, Motivation and Objective Drug addiction is a chronic disease of brain, which has a trend to recur. Animal experiments showed that gliacyte derived neurotrophic factor (GDNF) had an ideal t
Background, Motivation and Objective A quantitative diagnostic method for liver fibrosis using ultrasound echo signal is highly required. A probability density function (PDF) of echo amplitudes from a
Background, Motivation and Objective Thyroid cancer management is a complicated clinical problem due to the high prevalence of thyroid nodules in the general population and the relatively low prevalen
Background, Motivation and Objective Non-invasive transdermal delivery of drugs offers a number of advantages over conventional delivery methods. For the past twenty years considerable attention was p
Background, Motivation and Objective The motion, and resulting strain, of the arterial wall nearby an atheromatous plaque is believed to be affected by the plaque and therefore may carry important inf