Search Results - "Tsysar, Sergey A"

Acoustic holography as a metrological tool for characterizing medical ultrasound sources and fields by Sapozhnikov, Oleg A, Tsysar, Sergey A, Khokhlova, Vera A, Kreider, Wayne

“…Acoustic holography is a powerful technique for characterizing ultrasound sources and the fields they radiate, with the ability to quantify source vibrations…”
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Holographic extraction of plane waves from an ultrasound beam for acoustic characterization of an absorbing layer of finite dimensions by Nikolaev, Dmitry A., Tsysar, Sergey A., Khokhlova, Vera A., Kreider, Wayne, Sapozhnikov, Oleg A.

“…For the acoustic characterization of materials, a method is proposed for interpreting experiments with finite-sized transducers and test samples in terms of…”
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Initial Assessment of Boiling Histotripsy for Mechanical Ablation of Ex Vivo Human Prostate Tissue by Khokhlova, Vera A., Rosnitskiy, Pavel B., Tsysar, Sergey A., Buravkov, Sergey V., Ponomarchuk, Ekaterina M., Sapozhnikov, Oleg A., Karzova, Maria M., Khokhlova, Tatiana D., Maxwell, Adam D., Wang, Yak-Nam, Kadrev, Alexey V., Chernyaev, Andrey L., Chernikov, Valery P., Okhobotov, Dmitriy A., Kamalov, Armais A., Schade, George R.

“…Boiling histotripsy (BH) is a focused ultrasound technology that uses millisecond-long pulses with shock fronts to induce mechanical tissue ablation. The…”
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Elastic Properties of Aging Human Hematoma Model In Vitro and Its Susceptibility to Histotripsy Liquefaction by Ponomarchuk, Ekaterina M., Rosnitskiy, Pavel B., Tsysar, Sergey A., Khokhlova, Tatiana D., Karzova, Maria M., Kvashennikova, Anastasia V., Tumanova, Kseniia D., Kadrev, Alexey V., Buravkov, Sergey V., Trakhtman, Pavel E., Starostin, Nicolay N., Sapozhnikov, Oleg A., Khokhlova, Vera A.

“…Tissue susceptibility to histotripsy disintegration has been reported to depend on its elastic properties. This work was aimed at investigation of histotripsy…”
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Ultrastructural Analysis of Volumetric Histotripsy Bio-effects in Large Human Hematomas by Ponomarchuk, Ekaterina M., Rosnitskiy, Pavel B., Khokhlova, Tatiana D., Buravkov, Sergey V., Tsysar, Sergey A., Karzova, Maria M., Tumanova, Kseniya D., Kunturova, Anna V., Wang, Y.-N., Sapozhnikov, Oleg A., Trakhtman, Pavel E., Starostin, Nicolay N., Khokhlova, Vera A.

“…Large-volume soft tissue hematomas are a serious clinical problem, which, if untreated, can have severe consequences. Current treatments are associated with…”
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Biofabrication of a Functional Tubular Construct from Tissue Spheroids Using Magnetoacoustic Levitational Directed Assembly by Parfenov, Vladislav A., Koudan, Elizaveta V., Krokhmal, Alisa A., Annenkova, Elena A., Petrov, Stanislav V., Pereira, Frederico D. A. S., Karalkin, Pavel A., Nezhurina, Elizaveta K., Gryadunova, Anna A., Bulanova, Elena A., Sapozhnikov, Oleg A., Tsysar, Sergey A., Liu, Kaizheng, Oosterwijk, Egbert, van Beuningen, Henk, van der Kraan, Peter, Granneman, Sanne, Engelkamp, Hans, Christianen, Peter, Kasyanov, Vladimir, Khesuani, Yusef D., Mironov, Vladimir A.

“…In traditional tissue engineering, synthetic or natural scaffolds are usually used as removable temporal support, which involves some biotechnology…”
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Holography-based measurement of sound speed and attenuation coefficient values for small samples of tissue phantoms by Sapozhnikov, Oleg A., Nikolaev, Dmitry A., Tsysar, Sergey A., Khokhlova, Vera A., Kreider, Wayne

“…For therapeutic ultrasound applications, design and planning of treatments often involve simulations to predict the in situ acoustic field, and these…”
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The use of acoustic holography for simultaneous characterization of various focus steering configurations in ultrasound fields generated by multi-element phased arrays by Khokhlova, Vera A., Nikolaev, Dmitry A., Tsysar, Sergey A., Kaloev, Azamat Z., Kreider, Wayne, Sapozhnikov, Oleg A.

“…Acoustic holography has been successfully applied for accurate characterization of ultrasound sources. However, its direct use for multi-element phased arrays…”
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Improved characterization of ultrasound sources by radiation force balance using acoustic holography in place of plane-wave and geometric approximations by Sapozhnikov, Oleg A., Nikolaev, Dmitry A., Tsysar, Sergey A., Khokhlova, Vera A., Kreider, Wayne

“…The radiation force balance (RFB) method is a widely accepted approach to characterize ultrasound sources used both in therapy and imaging. Measurement of the…”
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Large-aperture 256-element fully populated random array for therapeutic ultrasound applications: Experimental study of its functionality and characterization of the radiated field by Sapozhnikov, Oleg A., Rosnitskiy, Pavel B., Asfandiyarov, Shamil A., Nikolaev, Dmitry A., Tsysar, Sergey A., Khokhlova, Vera A.

“…Recently, a new method has been proposed for designing random high-intensity focused ultrasound (HIFU) arrays with the maximum possible filling factor and…”
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Acoustic holography for calibration of ultrasound sources and in situ fields in therapeutic ultrasound by Sapozhnikov, Oleg A., Kreider, Wayne, Tsysar, Sergey A., Nikolaev, Dmitry A., Khokhlova, Vera A.

“…Therapeutic ultrasound sources, which are typically piezoelectric transducers, are intended to deliver known acoustic pressures to targeted tissue sites. Each…”
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Mechanical disintegration of benign and malignant tumors in ex vivo human prostate tissues using boiling histotripsy by Khokhlova, Vera A., Rosnitskiy, Pavel B., Tsysar, Sergey A., Karzova, Maria M., Buravkov, Sergey V., Danilova, Natalya V., Malkov, Pavel G., Ponomarchuk, Ekaterina, Sapozhnikov, Oleg A., Khokhlova, Tatiana, Maxwell, Adam D., Wang, Yak-Nam, Kadrev, Aleksey V., Chernyaev, Andrey L., Schade, George R.

“…The feasibility of boiling histotripsy (BH) to mechanically liquefy ex vivo human prostate tissue with benign hyperplasia (BPH) and adenocarcinoma (PCa) was…”
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Elastic properties of human hematoma model and its sensitivity to histotripsy liquefaction by Ponomarchuk, Ekaterina M., Rosnitskiy, Pavel, Tsysar, Sergey A., Khokhlova, Tatiana D., Karzova, Maria M., Tyurina, Anastasia V., Tumanova, Kseniya D., Kadrev, Alexey V., Buravkov, Sergey V., Trakhtman, Pavel E., Starostin, Nicolay N., Sapozhnikov, Oleg A., Khokhlova, Vera A.

“…The efficiency of various histotripsy approaches for mechanical tissue ablation has been reported to depend on tissue elastic properties. Here the efficiency…”
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Boiling histotripsy dose for mechanical ablation of human prostate tissues with different elastic properties by Rosnitskiy, Pavel, Tsysar, Sergey A., Karzova, Maria M., Ponomarchuk, Ekaterina M., Tyurina, Anastasia V., Tumanova, Kseniya D., Buravkov, Sergey V., Kadrev, Alexey V., Khokhlova, Tatiana D., Schade, George R., Sapozhnikov, Oleg A., Maxwell, Adam, Chernyaev, Andrey, Khokhlova, Vera

“…Boiling histotripsy (BH) is a promising technology for transrectal mechanical ablation of localized prostate cancer. BH uses sequences of milliseconds-long…”
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ULTRASTRUCTURAL ANALYSIS OF VOLUMETRIC HISTOTRIPSY BIOEFFECTS IN LARGE HUMAN HEMATOMAS by Ponomarchuk, Ekaterina M., Rosnitskiy, Pavel B., Khokhlova, Tatiana D., Buravkov, Sergey V., Tsysar, Sergey A., Karzova, Maria M., Tumanova, Kseniya D., Kunturova, Anna V., Wang, Y.-N, Sapozhnikov, Oleg A., Trakhtman, Pavel E., Starostin, Nicolay N., Khokhlova, Vera A.

“…Large volume soft tissue hematomas are a serious clinical problem, which, if untreated, can have severe consequences. Current treatments are associated with…”
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Nonlinear and transient acoustic holography for characterization of medical ultrasound sources and their fields by Sapozhnikov, Oleg A., Kreider, Wayne, Tsysar, Sergey A.

“…Holography is based on the possibility of reproducing a 3D wave field from a 2D distribution of the wave amplitude and phase measured along some surface…”
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Characterization of an electromagnetic lithotripter using transient acoustic holography by Sapozhnikov, Oleg A., Tsysar, Sergey A., Kreider, Wayne, Li, Guangyan, Khokhlova, Vera A., Bailey, Michael R.

“…Shock wave lithotripters radiate high intensity pulses that are focused on a kidney stone. High pressure, short rise time, and path-dependent nonlinearity make…”
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Kidney stone pushing and trapping using focused ultrasound beams of different structure by Sapozhnikov, Oleg A., Nikolaeva, Anastasia V., Terzi, Marina E., Tsysar, Sergey A., Maxwell, Adam D., Cunitz, Bryan W., Bailey, Michael R.

“…A technology to reposition kidney stones with radiation force was recently proposed by our team and already used to transcutaneously facilitate passage of…”
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Uncertainties in characterization of high-intensity, nonlinear pressure fields for therapeutic applications by Kreider, Wayne, Yuldashev, Petr V., Maxwell, Adam D., Khokhlova, Tatiana D., Tsysar, Sergey A., Bailey, Michael R., Sapozhnikov, Oleg A., Khokhlova, Vera A.

“…A fundamental aspect of developing therapeutic ultrasound applications is the need to quantitatively characterize the acoustic fields delivered by transducers…”
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Ultrasonic holography of 3D objects by Tsysar, Sergey A, Sapozhnikov, Oleg A

“…The holographic approach used here relies on the principle of a time-reversal mirror and the Rayleigh integral. An ultrasonic beam consisting of long tone…”
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