Academic literature on the topic 'Ultrasound attenuation imaging'

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Journal articles on the topic "Ultrasound attenuation imaging"

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Roux, Christian, Bruno Fournier, Pascal Laugier, Christine Chappard, Sami Kolta, Maxime Dougados, and Geneviève Berger. "Broadband ultrasound attenuation imaging: A new imaging method in osteoporosis." Journal of Bone and Mineral Research 11, no. 8 (December 3, 2009): 1112–18. http://dx.doi.org/10.1002/jbmr.5650110810.

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Roux, C., B. Fournier, P. Laugier, C. Chappard, S. Kolta, G. Berger, and M. Dougados. "Broadband ultrasound attenuation imaging: A new imaging method in osteoporosis." Osteoporosis International 6, S1 (January 1996): 186. http://dx.doi.org/10.1007/bf02500280.

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Tu, Haifeng, Tomy Varghese, Ernest L. Madsen, Quan Chen, and James A. Zagzebski. "Ultrasound Attenuation Imaging Using Compound Acquisition and Processing." Ultrasonic Imaging 25, no. 4 (October 2003): 245–61. http://dx.doi.org/10.1177/016173460302500403.

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Iijima, Hiroko, Takashi Nishimura, Toshifumi Tada, Chikage Nakano, Tomoko Aoki, Tomoyuki Takashima, Naoto Ikeda, et al. "A new method to evaluate hepatic steatosis using ultrasound "Attenuation imaging"." Kanzo 59, no. 1 (2018): 65–67. http://dx.doi.org/10.2957/kanzo.59.65.

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Ribault, M., J. Y. Chapelon, D. Cathignol, and A. Gelet. "Differential Attenuation Imaging for the Characterization of High Intensity Focused Ultrasound Lesions." Ultrasonic Imaging 20, no. 3 (July 1998): 160–77. http://dx.doi.org/10.1177/016173469802000302.

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High intensity focused ultrasound (HIFU) is an effective technique for creating coagulative necrotic lesions in biological tissue, with a view to treating localized tumors. Although good results have already been obtained, notably in urology, current systems lack a real time monitoring system to check the efficacy of the treatment procedures. This study describes the development and assessment of a noninvasive system for making local measurements of attenuation variations during HIFU treatment procedures. An apparatus (Ablatherm, Edap-Technomed, France), combining a 2.5 MHz therapeutic transducer and a 5.5 MHz twin plane imaging probe (connected to an ultrasound scanner), was used to produce lesions. The rf signals needed to calculate the attenuation were recorded as outputs from the ultrasound scanner, before and after the high intensity firing sequences, which were performed on ten pieces of porcine liver. Each firing sequence involved producing a lesion volume comprising 42 individual lesions. A number of recordings were also made without producing lesions, in order to test the reproducibility of the measurements. The attenuation function was evaluated locally using the centroid and the multinarrowband methods. Initially, changes in the integrated attenuation αbar; (mean attenuation in the 4–7 MHz range) and the attenuation slope β were examined for the lesion volume. β values did not vary significantly within this range, whereas α values varied significantly (in the region of 86% of the initial level) in comparison to measurements performed without forming lesions. The differential attenuation Δα (representing local variations in α) was subsequently used to generate images revealing the lesion areas. There was a strong similarity between these ‘Δα images’ and the lesion volumes defined by the operator. ‘Δα images’ offer several advantages over existing attenuation imaging techniques. Any problems related to the heterogeneity of the medium are eliminated, since only the change in attenuation is taken into account. Furthermore, there is no need to compensate for diffraction when estimating Δα, as the rf signals are captured in exactly the same positions before and after treatment. This technique can be used during in vivo treatment procedures. It can be implemented in real time, since the computational algorithms (based primarily on FFT calculations) are very fast. The technique should provide clinical practitioners with valuable qualitative and quantitative information for use in HIFU ultrasound surgery.
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Baran, D. T. "Broadband ultrasound attenuation measurements in osteoporosis." American Journal of Roentgenology 156, no. 6 (June 1991): 1326–27. http://dx.doi.org/10.2214/ajr.156.6.2028905.

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Lee, Bum S., and Song B. Park. "Modeling and Computer Simulation of Ultrasound Imaging Systems and Human Tissues." Ultrasonic Imaging 10, no. 4 (October 1988): 229–47. http://dx.doi.org/10.1177/016173468801000401.

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A simulator has been developed for an ultrasound linear scan B-mode imaging system. First, a numerical method of calculating field patterns or pulse echo patterns is presented for a full-aperture system with a given transducer geometry in nonattenuating and attenuating media, based on the measured temporal impulse response for a single transducer element immersed in water, and taking into account the variation of attenuation and acoustic velocity in human tissue. The simulator then models and simulates the receiver subsystems in detail using the received pulse echo. In particular, a dynamic inverse filter, to improve the axial resolution, and an unconventional TGC gain function, to reduce the SNR deterioration through logarithmic compression, are proposed. Finally, simulation and experimental results are presented and discussed.
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Kanayama, Yuko, Naohisa Kamiyama, Kenichi Maruyama, and Yasukiyo Sumino. "Real-Time Ultrasound Attenuation Imaging of Diffuse Fatty Liver Disease." Ultrasound in Medicine & Biology 39, no. 4 (April 2013): 692–705. http://dx.doi.org/10.1016/j.ultrasmedbio.2012.10.021.

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Laugier, P., G. Berger, P. Giat, P. Bonnin-Fayet, and M. Laval-Jeantet. "Ultrasound Attenuation Imaging in the Os Calcis: An Improved Method." Ultrasonic Imaging 16, no. 2 (April 1994): 65–76. http://dx.doi.org/10.1177/016173469401600201.

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A complete assessment of the broadband ultrasonic attenuation (BUA) distribution within the os calcis was made using an ultrasonic mechanical scanning device with focused transducers. Measurements were performed on 12 os calces removed from fresh female cadavers. We present the first images of BUA of the os calcis. Reasonably high quality images were obtained compared to computed tomography. The resolution provided by the focused transducers is approximately 4 or 5 mm in the focal zone. Compared to dual energy X-ray absorptiometry (DEXA) or quantitative computed tomography, ultrasound imaging of the os calcis offers the possibility of controlling the placement, size and shape of the region of interest and to use multiple measurement sites. DEXA was used systematically to measure the bone mineral density (BMD) of the os calces. A highly significant correlation between BMD and BUA was found (r= 0.97 p < 0.001).
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Laugier, P. "Ultrasound Attenuation Imaging in the Os Calcis: An Improved Method." Ultrasonic Imaging 16, no. 2 (April 1994): 65–76. http://dx.doi.org/10.1006/uimg.1994.1004.

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Dissertations / Theses on the topic "Ultrasound attenuation imaging"

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Njeh, Christopher Forti. "The dependence of ultrasound velocity and attenuation on the material properties of cancellous bone." Thesis, Sheffield Hallam University, 1995. http://shura.shu.ac.uk/20127/.

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There is an increasing interest in evaluating the role of ultrasound in the identification and management of osteoporosis. We may measure the velocity of ultrasound through bone and the frequency-dependent attenuation, generally referred to as broadband ultrasound attenuation (BUA). The dependence of these parameters upon osteoporotic changes in density and architecture(total loss or thinning of trabeculae width) is still not well defined. A physical model for cancellous bone was developed by introducing an array of cylindrical voids of defined diameter and configuration into polymethylmethacrylate (Perspex). Experimental studies on the cancellous bone model demonstrated that the relationship between BUA and porosity is approximately parabolic, with low BUA values obtained at both low (cortical bone) and high (bone marrow) porosities. This explains the discrepancies in the correlation between BUA and density for different bone structures reported in the literature. BUA was also found to be dependent on the number of pores and the pore distribution(structure). Velocity was found to be dependent on pore size only. BUA and velocity were also found to be temperature dependent. Permeability provides quantitative information related to structure, validated using the perspex model. In vitro studies were carried out on bovine and human cancellous bone (calcaneus and vertebrae). The relationship between Young's modulus, strength and density followed the power law predicted by theoretical models. Measurements on bovine and vertebrae samples were carried out in three orthogonal directions. Young's modulus, strength, BUA, velocity and permeability were shown to be direction dependent and hence dependent upon structure. The relationship between BUA and density followed the parabolic trend observed in the physical model, with the human samples on the rising phase and the bovine on the falling phase of the parabola. BUA in the calcaneus was found to follow a power law relationship with density (BUA = rho[1.99]). BUA was a goodpredictor of strength in both the bovine (R[2] = 74%) and calcaneus (R[2] = 75%) samples. Velocity was a good predictor of both Young's modulus and strength whenapplied to the bar wave equation (E = V[2]rho) with an R[2] of 94% and 88% respectively for the calcaneus and 91% and 92% respectively for the bovine samples. For thecalcaneus samples an R[2] of 83% and 80% for Young's modulus and strength were obtained when density in the bar wave equation was substituted by BUA. The cortical end plates have a significant offset effect on BUA in the calcaneus. Permeability was highly correlated to strength. BUA and velocity were shown to be good predictors of cancellous bone strength in vitro. Future work should concentrate upon the investigation of controlled structural models of cancellous bone and also on the extrapolation of this study to the in vivo prediction of bone strength.
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Han, Chao. "Advanced signal and imaging methods in ultrasound cortical bone assessment." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS144.

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La technologie à ultrasons constitue un moyen abordable de mettre en œuvre des solutions non invasives pour évaluer de manière diagnostique les caractéristiques mécaniques de l'os. Dans cette thèse nous introduisons la poursuite orthogonale (OMP) pour obtenir une reconstruction robuste de la forme d'onde de chaque écho après rebond sur les faces externe et interne de l'os cortical. Le temps de vol et les fréquences centrales des échos sont utilisés pour calculer l'atténuation normalisée à large bande (nBUA). Des mesure in vivo ont été effectuées avec succès en mode écho et des données de référence ont été obtenues à partir de mesures HR-pQCT (épaisseur corticale, vBMD). Il est ainsi apparu que Ct.Th et nBUA étaient fortement corrélés aux valeurs d'épaisseur de référence (r2=0,90), respectivement. La deuxième contribution principale de ces travaux consiste en l'utilisation de la méthode TDTE (Time Domain Topological Energy) et de la migration dans l'imagerie de l'os cortical. L'approche TDTE montre de bonnes performances dans l'imagerie de la structure de l'os cortical (faces interne et externe de l'os, ainsi que la structure poreuse à l'intérieur de l'os). La migration quant à elle peut fournir une distribution quantitative approximative de la densité, de la vitesse de compression et de la vitesse de cisaillement
Ultrasound technology provides an affordable means to implement non-invasive solutions to diagnostically assess the mechanical characteristics of the bone. In this thesis we introduce Orthogonal Matching Pursuit (OMP) to obtain a robust reconstruction of the waveform of each echo bouncing off the cortical bone surfaces. Echoes' time-of-flight and central frequencies are used to calculate Ct.Th and normalized broadband attenuation (nBUA). In vivo measurements have been successfully performed with pulse-echo ultrasound and reference data wase obtained with HR-pQCT (cortical thickness, vBMD). Ct.Th and nBUA were highly correlated to reference thickness values (r2=0.90) and vBMD (r2=0,90), respectively. The second main contribution is that we introduce Time Domain Topological Energy (TDTE) method and migration into cortical bone imaging. TDTE shows well performance in extracting the structure of cortical bone, including the external, internal boundary of cortical bone and porous structure inside the cortical bone. Migration can provide a rough quantitative distribution of density, compression wave speed, and shear wave speed
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Benane, Mehdi Yanis. "Ultrafast, broadband and multi-pulse transmissions for ultrasonic imaging." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1268/document.

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L'échographie est un outil de diagnostic largement utilisé grâce à des vertus telles que l'acquisition / traitement de données en temps réel, la facilité d'utilisation et la sécurité pour le patient / praticien pendant l'examen. Cependant, comparée à d'autres méthodes d'imagerie telles que la tomographie à rayons X et l'imagerie par résonance magnétique, l'échographie présente l'inconvénient de fournir une qualité d'image relativement basse. Dans cette thèse, nous étudions une méthode capable d'augmenter la qualité d'image, permettant ainsi de meilleurs diagnostics échographiques. Afin d'augmenter le rapport signal / bruit des signaux reçus, nous proposons d'utiliser des signaux modulés en fréquence (chirps). Pour éviter l'effet négatif de la bande passante limitée de la sonde, nous modulons en amplitude les signaux d'excitations afin d'augmenter l'énergie du signal dans les bandes de fréquences où la sonde est moins efficace. Pour compresser l'énergie des échos, nous utilisons des filtres de Wiener afin d'obtenir un bon compromis résolution spatiale / stabilité du bruit. Nous combinons cette méthode appelée REC (Resolution Enhancement Technique) avec l’imagerie ultrarapide. Nous montrons des résultats simulés et expérimentaux (in-vitro, ex-vivo et in-vivo) prometteurs. De plus, nous adaptons REC afin de compenser l'effet d'atténuation tissulaire. Cette amélioration est validée expérimentalement sur des phantoms. Nous adaptons également REC à la propagation non linéaire des ondes ultrasonores, en proposant une technique d'inversion d'impulsions qui utilise REC pour fournir une meilleure résolution et un meilleur rapport contraste / bruit. Ensuite, nous appliquons REC à différents schémas d’acquisition tels que les ondes divergentes et la transmission multi-lignes (MLT). Nous montrons également que la qualité d’image peut être augmentée davantage en tenant compte de la réponse impulsionnelle spatiale de la sonde lorsque REC et MLT sont combinés
Ultrasound imaging is a diagnostic tool widely used thanks to such virtues as real-time data acquisition / processing, ease of use and safety for the patient / practitioner during examination. However, when compared to other imaging methods such as X-ray tomography and Magnetic Resonance Imaging, the echography has the disadvantage to provide relatively low image quality. In this thesis, we study a method that is able to increase the ultrasound image quality, thus paving the way towards improved diagnostics based on echography and novel ultrasound applications. In order to increase the echo signal to noise ratio of the received signals, we propose to use linear frequency modulated signals, also called chirps. To avoid the negative effect of the bandlimited acquisition probe, we apply a pre-enhancement step on the probe excitation signals in order to boost the signal energy in the frequency bands where the probe is less efficient. To compress the echo energy in reception, we use Wiener filters that allow obtaining a good trade-off between the spatial resolution and noise stability. We apply the previously detailed pipeline, also called REC (Resolution Enhancement Technique) on ultrafast imaging schemes. We show promising results in simulation and in-vitro, ex-vivo, in-vivo acquisitions. Furthermore, we adapt REC in such way that the frequency dependent tissue attenuation effect is compensated for. This improvement is validated in simulation and phantom experiments. We also adapt REC to the nonlinear propagation of ultrasound waves, by proposing a pulse inversion technique that uses REC to provide a better image resolution and contrast to noise ratio. Then, we demonstrate the generality of the REC method by applying it to different acquisition schemes such as diverging wave compounding and Multi Line Transmit (MLT). We also show that the image quality can be increased more by taking into account the spatial impulse response of the ultrasound probe when REC and MLT are combined
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Filipík, Adam. "KALIBRACE ULTRAZVUKOVÉHO PRŮZVUČNÉHO SYSTÉMU VÝPOČETNÍ TOMOGRAFIE." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-233451.

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Tato dizertace je zaměřena na medicínskou zobrazovací modalitu – ultrazvukovou počítačovou tomografii – a algoritmy zlepšující kvalitu zobrazení, zejména kalibraci USCT přístroje. USCT je novou modalitou kombinující ultrazvukový přenos signálů a principy tomografické rekonstrukce obrazů vyvíjených pro jiné tomografické systémy. V principu lze vytvořit kvantitativní 3D obrazové objemy s vysokým rozlišením a kontrastem. USCT je primárně určeno pro diagnózu rakoviny prsu. Autor spolupracoval na projektu Institutu Zpracování dat a Elektroniky, Forschungszentrum Karlsruhe, kde je USCT systém vyvíjen. Jeden ze zásadních problémů prototypu USCT v Karlsruhe byla absence kalibrace. Tisíce ultrazvukových měničů se liší v citlivosti, směrovosti a frekvenční odezvě. Tyto parametry jsou navíc proměnné v čase. Další a mnohem závažnější problém byl v pozičních odchylkách jednotlivých měničů. Všechny tyto aspekty mají vliv na konečnou kvalitu rekonstruovaných obrazů. Problém kalibrace si autor zvolil jako hlavní téma dizertace. Tato dizertace popisuje nové metody v oblastech rekonstrukce útlumových obrazů, kalibrace citlivosti měničů a zejména geometrická kalibrace pozic měničů. Tyto metody byly implementovány a otestovány na reálných datech pocházejících z prototypu USCT z Karlsruhe.
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Jaegler, Arnaud. "Segmentation d'image échographique par minimisation de la complexité stochastique en vue du diagnostic sénologique." Thesis, Aix-Marseille 3, 2011. http://www.theses.fr/2011AIX30002.

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L'objectif de cette thèse est de proposer et d'étudier une méthode de segmentation qui soit adaptée à l'imagerie échographique ultrasonore (US) et qui tienne compte de certaines contraintes rencontrées en milieu clinique. De ce fait, cette méthode se doit d'être robuste au bruit de speckle et à l'atténuation des ondes US dans le milieu, mais aussi rapide et ne nécessiter que peu, voire aucun paramètre à régler par l'opérateur. Dans ce cadre, les solutions fondées sur des contours actifs fondés sur la Minimisation de la Complexité Stochastique ont été étudiées. L'impact de différentes modélisations du speckle sur les résultats de ces techniques de segmentation a été caractérisé. Il a été montré qu'il est important de prendre en compte les variations de l'intensité moyenne du speckle induites par l'atténuation dans chaque région de l'image, à la fois pour la segmentation et pour l'analyse des propriétés du speckle. De plus, une stratégie hiérarchique de segmentation a été développée. Celle-ci permet notamment d'accroître la qualité des segmentations et de diminuer les temps de calcul.Les algorithmes de segmentation considérés étaient initialement conçus pour des formes polygonales peu adaptées à celles rencontrées dans le cadre d'applications médicales. Nous avons donc développé un nouveau modèle de contour fondé sur la théorie de l'information qui permet toujours une mise en oeuvre rapide des algorithmes et ne dépend d'aucun paramètre à régler par l'utilisateur. Testé sur des images synthétiques et réelles de fantômes échographiques, ce nouveau modèle permet de mieux décrire les formes régulières et arrondies des objets rencontrés en imagerie échographique
The purpose of this PhD thesis is to propose and study a segmentation method adapted to echographic ultrasound imaging that could be clinically operational (i.e. fast and parameter-free) and robust to both the speckle noise and the attenuation of the ultrasonic signal in the medium. The solutions we studied rely on statistical active contour methods that are based on the Minimization of the Stochastic Complexity (MSC). The impact on the segmentation results of several speckle noise models that still lead to fast segmentation algorithms has been characterized. A key feature of these models, that appears to be crucial for both the segmentation and the speckle characterization, is the ability to take into account the spatial variation of the average intensity induced by the attenuation of the signal in the medium. In addition, we proposed a hierarchical optimization strategy that improves segmentation results and decreases the computation time.Finally, a novel contour model that is adapted to smooth boundaries that are met in medical imaging is also proposed for the considered MSC segmentation algorithms. The construction of this contour model relies on Information Theory concepts. It still allows one to get low computation times and does not contain any tuning parameter. Evaluations performed on synthetic images and real echographic phantom images indicate that this contour model provides better segmentation results for smooth inclusions that usually compose the echographic images
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Chang, Chen-Han, and 張珵涵. "Estimation of Sound Velocity and Attenuation Coefficient for Breast Ultrasound Imaging." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/76620374500090944623.

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碩士
臺灣大學
電機工程學研究所
98
Recently, breast cancer has been one of the leading causes of death from cancer in females. Therefore, the study of its early detection has become an important issue now. Mammography has always been considered as the most common and the most effective screening method for detecting breast cancer because it can detect non-palpable and small tumors. However, the issue about ionization radiation is disputable. Besides, the images of dense breast region cover the images of small tumor region so that misdiagnosis happens. Toward this drawback, ultrasonic breast imaging can provide some aid. In short, ultrasonic breast imaging has many advantages, including noninvasive method, without ionizing radiation, portable, not limited to dense breast, and real-time. However, the use of conventional ultrasonic pulse-echo B-mode imaging to find breast tumors is also often limited by the image distortion caused by sound-velocity inhomogeneities in the breast tissue. Using other characteristics of tissue, such as sound velocity and attenuation coefficient, would provide diagnosticians additional information to increase the accuracy of diagnosis. The aim of the first part of this study was to determine the efficacy of using sound velocity and tissue attenuation to clinically discriminate breast cancer from healthy tissues. The method requires only raw channel data acquired by a linear transducer array and can therefore be implemented on existing clinical systems. In this study, these methods were tested on clinical data. A total of 19 biopsy-proven cases were evaluated. A imaging setup consisting of a 5-MHz, 128-channel linear array was used to simultaneously obtain B-mode image data, time-of-flight data and attenuation data. The sound velocity and attenuation coefficient can be reconstructed inside and outside a region of interest manually selected in the B-mode image. To reduce distortion caused by tissue inhomogeneities, an optimal filter derived from pulse-echo data—with water replacing the breast tissue—is applied. These results indicate that carcinoma (CA) can be discriminated from fibroadenoma (FA) and fat by choosing an appropriate threshold for the relative sound velocity (i.e., 18.5 m/s). However, the large variations in the attenuation within the same type of tissue make simple thresholding ineffective. Nevertheless, the method described in this study has the potential to reduce negative biopsies and to improve the accuracy of breast cancer detection in clinics. In the second part of this study, we implemented three different approaches to evaluate attenuation and one combined method in order to help the differentiation of breast cancer. Performance of these approaches is investigated based on simulation data. The three approaches are: video signal analysis (VSA), spectral estimation using periodogram (PER), and minimum side difference (MSD). Note that all approaches can readily be implemented using current B-mode imaging setup. First, VSA is to observe the gray-level gradient on a B-mode image. Second, PER is implemented by estimating the center frequency from the periodogram of the beamform data. Third, MSD is calculated using gray-level values of areas posterior to the region of interest, and left and right posterior to the ROI. In VSA, an effective frequency is required and typically the nominal center frequency is used. However, with a broadband pulse an accurate estimate of the effective frequency is needed to avoid large errors in VSA. In this study, we propose a modified VSA method in which PER is used to estimate the effective frequency. It is shown that accuracy of the VSA method can be improved by the proposed method particularly when the transmit bandwidth is large.
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Books on the topic "Ultrasound attenuation imaging"

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Grant, Stuart A., and David B. Auyong. Basic Principles of Ultrasound Guided Nerve Block. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780190231804.003.0001.

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This chapter provides a clinical description of ultrasound physics tailored to provide the practitioner a solid background for optimal imaging and needle guidance technique during regional anesthesia. Important ultrasound characteristics are covered, including optimization of ultrasound images, transducer selection, and features found on most point-of-care systems. In-plane and out-of-plane needle guidance techniques and a three-step process for visualizing in-plane needle insertions are presented. Next, common artifacts and errors including attenuation, dropout, and intraneural injection are covered, along with clinical solutions to overcome these inaccuracies. Preparation details are reviewed to make the regional anesthesia procedures as reproducible and safe as possible. Also included are a practical review of peripheral nerve block catheter placement principles, an appendix listing what blocks may be used for what surgeries, and seven Keys to Ultrasound Success that can make ultrasound guided regional anesthesia understandable and clinically feasible for all practitioners.
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Book chapters on the topic "Ultrasound attenuation imaging"

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Kudo, N., N. Hirao, K. Okada, and K. Yamamoto. "Pressure-Dependent Attenuation of Ultrasound Contrast Agents." In Acoustical Imaging, 107–13. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-8823-0_15.

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Baldeweck, T., P. Laugier, and G. Berger. "Ultrasound Attenuation Estimation in Highly Attenuating Media: Application to Skin Characterization." In Acoustical Imaging, 341–48. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4419-8772-3_55.

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Girault, Jean-Marc, Frederic Ossant, Abdeldjalil Ouahabi, Christelle Guittet, Denis Kouamé, and Fredéric Patat. "Non-Stationary Parametric Spectral Estimation for Ultrasound Attenuation." In Acoustical Imaging, 53–59. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4419-8588-0_9.

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Johnson, S. A., T. Abbott, R. Bell, M. Berggren, D. Borup, D. Robinson, J. Wiskin, S. Olsen, and B. Hanover. "Non-Invasive Breast Tissue Characterization Using Ultrasound Speed and Attenuation." In Acoustical Imaging, 147–54. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/1-4020-5721-0_17.

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Weisser, G., M. Fein, I. Zuna, A. Lorenz, and W. J. Lorenz. "Attenuation Measurement with Transmitted and Reflected Ultrasound - A Comparison of Different Methods." In Acoustical Imaging, 409–14. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3370-2_65.

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Klimonda, Ziemowit, Jerzy Litniewski, and Andrzej Nowicki. "Enhancing Tissue Attenuation Estimation from Backscattered Ultrasound Using Spatial Compounding and Synthetic Aperture Techniques." In Acoustical Imaging, 181–90. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2619-2_18.

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Bush, Nigel L., Jeffrey C. Bamber, and Richard Symonds-Tayler. "A Clinical Ultrasound Scanner Developed for Imaging the Relative Surface Attenuation, Reflectivity and Profile of Skin Lesions." In Acoustical Imaging, 511–18. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2402-3_64.

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Rau, Richard, Ozan Unal, Dieter Schweizer, Valery Vishnevskiy, and Orcun Goksel. "Attenuation Imaging with Pulse-Echo Ultrasound Based on an Acoustic Reflector." In Lecture Notes in Computer Science, 601–9. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-32254-0_67.

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Jang, H. S., T. K. Song, and S. B. Park. "Ultrasound Attenuation Estimation in Soft Tissue Using the Entropy Difference of Pulsed Echoes Between Two Adjacent Envelope Segments." In Acoustical Imaging, 517–31. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4613-0791-4_55.

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Harary, Sivan, and Eugene Walach. "Identification of Malignant Breast Tumors Based on Acoustic Attenuation Mapping of Conventional Ultrasound Images." In Medical Computer Vision. Recognition Techniques and Applications in Medical Imaging, 233–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36620-8_23.

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Conference papers on the topic "Ultrasound attenuation imaging"

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Leeman, Sidney, Andrew J. Healey, Mark C. Betts, and Leonard A. Ferrari. "Attenuation-weighted pulse-echo imaging with ultrasound." In Medical Imaging 1995, edited by Richard L. Van Metter and Jacob Beutel. SPIE, 1995. http://dx.doi.org/10.1117/12.208338.

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Sandhu, Gursharan Yash Singh, Cuiping Li, Olivier Roy, Erik West, Katelyn Montgomery, Michael Boone, and Neb Duric. "Frequency-domain ultrasound waveform tomography breast attenuation imaging." In SPIE Medical Imaging, edited by Neb Duric and Brecht Heyde. SPIE, 2016. http://dx.doi.org/10.1117/12.2218374.

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Li, Cuiping, Neb Duric, and Lianjie Huang. "Comparison of ultrasound attenuation tomography methods for breast imaging." In Medical Imaging, edited by Stephen A. McAleavey and Jan D'hooge. SPIE, 2008. http://dx.doi.org/10.1117/12.771433.

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Frimmel, Hans, Oscar Acosta, Aaron Fenster, and Sébastien Ourselin. "Reduction of attenuation effects in 3D transrectal ultrasound images." In Medical Imaging, edited by Stanislav Y. Emelianov and Stephen A. McAleavey. SPIE, 2007. http://dx.doi.org/10.1117/12.711083.

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Mohammadi, Leila, Hamid Behnam, Jahan Tavakkoli, and Mohammadreza Nasiriavanaki. "Skull's acoustic attenuation and dispersion modeling on photoacoustic signal." In Photons Plus Ultrasound: Imaging and Sensing 2018, edited by Alexander A. Oraevsky and Lihong V. Wang. SPIE, 2018. http://dx.doi.org/10.1117/12.2291362.

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Chen, Ting, Junseob Shin, and Lianjie Huang. "Ultrasound transmission attenuation tomography using energy-scaled amplitude ratios." In SPIE Medical Imaging, edited by Neb Duric and Brecht Heyde. SPIE, 2016. http://dx.doi.org/10.1117/12.2216412.

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Civale, John, Jeff Bamber, Naomi Miller, Ian Rivens, and Gail ter Haar. "Attenuation Estimation and Temperature Imaging Using Backscatter for Extracorporeal HIFU Treatment Planning." In 6TH INTERNATIONAL SYMPOSIUM ON THERAPEUTIC ULTRASOUND. AIP, 2007. http://dx.doi.org/10.1063/1.2744291.

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Pérez-Liva, M., J. M. Udías, and J. L. Herraiz. "Improved misfit function for attenuation and speed reconstruction in ultrasound computed tomography." In SPIE Medical Imaging, edited by Neb Duric and Brecht Heyde. SPIE, 2017. http://dx.doi.org/10.1117/12.2253849.

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Park, Seonyeong, Alexander A. Oraevsky, Richard Su, and Mark A. Anastasio. "Compensation for non-uniform illumination and optical fluence attenuation in three-dimensional optoacoustic tomography of the breast." In Photons Plus Ultrasound: Imaging and Sensing 2019, edited by Alexander A. Oraevsky and Lihong V. Wang. SPIE, 2019. http://dx.doi.org/10.1117/12.2514750.

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Sarno, Daniel, Christian Baker, Mark Hodnett, and Bajram Zeqiri. "Phase-insensitive ultrasound computed tomography for acoustic attenuation imaging of breast phantoms." In Ultrasonic Imaging and Tomography, edited by Nicole V. Ruiter and Brett C. Byram. SPIE, 2021. http://dx.doi.org/10.1117/12.2580901.

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