<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> We have previously introduced methods for noninvasive estimation of temperature change using diagnostic ultrasound. The basic principle was validated both <emphasis emphasistype="italic">in vitro</emphasis> and vivo</emphasis> by several groups worldwide. Some limitations remain, however, that prevented these from being adopted in monitoring guidance minimally invasive thermal therapies, e.g., RF...

A real-time dual-mode ultrasound array (DMUA) system for imaging and therapy is described. The utilizes a concave (40-mm radius of curvature) 3.5 MHz, 32 element array, modular multichannel transmitter/receiver. capable operating in variety modes (on transmit) continuous receive on all elements even during high-power operation. signal chain consisting field-programmable gate arrays graphical processing units used to enable real time, software-defined beamforming image formation. Imaging...

This article describes the basic principles of ultrasound thermography (UST) and its real-time implementation using graphics processing unit (GPU)-enabled software architecture. In medicine, term is mostly associated with heat-sensing infrared cameras for recording surface temperature changes. this article, we use to describe qualitative noninvasive imaging tissue change any modality. Examples these modalities include microwave radiometry, magnetic resonance (MRI), US imaging, photoacoustic...

Abstract Deep-sea polymetallic nodules, abundant in critical metal elements, are a vital strategic mineral resource. Accordingly, the prompt, accurate, and high-speed acquisition of parameters distribution data for these nodules is crucial effective exploration, evaluation, identification valuable deposits. Studies show that one primary assessing Coverage Rate. For real-time, efficient computation this parameter, article proposes streamlined segmentation model named YOLOv7-PMN. This...

We present a dual-element concave ultrasound transducer system for generating and tracking of localized tissue displacements in thin constructs on rigid substrates. The is comprised highly focused PZT-4 5-MHz acoustic radiation force (ARF) confocal 25-MHz polyvinylidene fluoride imaging transducer. This allows the generation measurable samples substrates with thickness values down to 500 mum. Impulse-like longer duration sine-modulated ARF pulses are possible intermittent M-mode data...

Focused ultrasound (FUS) has been proposed for a variety of transcranial applications, including neuromodulation, tumor ablation, and blood-brain barrier opening. A flurry activity in recent years generated encouraging results demonstrating its feasibility these other applications. To date, monitoring FUS beams primarily accomplished using MR guidance, where both thermography elastography have used. The introduction real-time dual-mode array (DMUA) systems offers new paradigm focusing. In...

Meteorological parameters are the digital representations of climate. These play an important role in building energy consumption. The different meteorological chosen to determine impacts climate on consumption were temperature, relative humidity, global solar radiation, direct radiation and wind speed. variations heating or air condition caused by changes above mentioned calculated using simulations. sensitivity coefficients with these analyzed. effects determined for five climatic zones...

A system for the realtime generation and control of multiple-focus ultrasound phased-array heating patterns is presented. The employs a 1-MHz, 64-element array driving electronics capable fine spatial temporal pattern. driver integrated with 2-D temperature imaging implemented on commercial scanner. coordinates points are defined B-mode guidance images from scanner, together set controller parameters. at each point controlled by an independent proportional, integral, derivative that...

A nonlinear filtering approach to imaging the dynamics of microbubble ultrasound contrast agents (UCAs) in microvessels is presented. The based on adaptive third-order Volterra filter (TVF), which separates linear, quadratic, and cubic components from beamformed pulse-echo data. TVF captures polynomial nonlinearities utilizing full spectral echo data not prespecified bands, e.g., second or third harmonics. This allows for using broadband pulse transmission preserve axial resolution SNR. In...

By means of the viscoelastodynamic model for a two-layer solid-fluid system and detailed account locally induced acoustic radiation force, rational analytical computational framework is established viscoelastic characterization thin tissues from high-frequency ultrasound (HFUS) measurements. For practical applications, back-analysis set up to interpret frequency response function, signifying tissue's axial displacement (captured by imaging transducer) per squared voltage driving 'pushing'...

We introduce a new method for simultaneous imaging of tissue motion and flow with subsample accuracy in both axial lateral directions. The utilizes phase-coupled 2D speckle tracking approach, which employs the true complex cross correlation to find subpixel displacements have also modified sequence on Sonix RP scanner allow high frame rate data collection limited field view covering region interest (M2D-mode). Together robust method, M2D allows capturing full dynamics wall/tissue motion,...

We present first in vivo results of realtime 2D imaging thermal and mechanical response to sub-therapeutic HIFU beams a small-animal tumor model. A 2.5 MHz focused transducer with f <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">number</sub> = 1.05 was used generate short (≈1.5 sec) exposure LNCap tumors implanted the hindlimb nude mice power levels suitable produce 4-6°C rise tissue (based on thermally-calibrated mimicking phantoms)....

The ocean is a crucial area for future economic development. marine environment has high energy-efficient and ecological requirements building construction. Meteorological parameters are the key basis analysis design of energy efficiency. lack meteorological efficiency, particularly hourly data, under oceanic climatic conditions universal problem. appropriate calculation methods explored in this study. impact errors on consumption also analyzed. Three selected: temperature, humidity, wind...

We present a system for real-time 2D imaging of temperature change in tissue media using pulse-echo ultrasound. The frontend the is SonixRP ultrasound scanner with research interface giving us capability controlling beam sequence and accessing radio frequency (RF) data real-time. beamformed RF streamlined to backend system, where processed two-dimensional estimation algorithm running graphics processing unit (GPU). estimated displayed providing feedback that can be used control heating...