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Gaseous microemboli (GME) represent a common complication of cardiac structural interventions across both surgical and transcatheter approaches. Transthoracic cardiac ultrasound imaging represents a convenient methodology to visualize the…

机器学习 · 计算机科学 2026-04-27 Andrea Angino , Ken Trotti , Diego Ulisse Pizzagalli , Rolf Krause , Tiziano Torre , Stefanos Demertzis

Microbubbles - used as contrast agents in ultrasound imaging - are important tools in biomedical research, having been used together with ultrasound to develop significant diagnostic and therapeutic techniques. It has been suggested that…

医学物理 · 物理学 2022-11-23 Prashant Pandey

Contrast-enhanced ultrasound (CEUS) presents distinct advantages in diagnostic echography. Utilizing microbubbles (MBs) as conventional contrast agents enhances vascular visualization and organ perfusion, facilitating real-time,…

医学物理 · 物理学 2024-12-04 Agisilaos Matalliotakis , Martin D. Verweij

Mid-circuit measurements (MCMs) are critical components of the quantum error correction protocols expected to enable utility-scale quantum computing. MCMs can be modeled by quantum instruments (a type of quantum operation or process), which…

Exhaled breath condensate (EBC) contains volatile metabolites and is promising for non-invasive disease diagnosis, but after decades of research spanning over 100 biomarkers and 10 diseases, no EBC-based test has reached clinical use. The…

定量方法 · 定量生物学 2026-05-19 Amio Pronoy Das Ritwik , Yamin Mansur , Jingcheng Ma

When exposure measurement error (EME), confounder measurement error (CME), or both are present, health effect estimates regarding exposure mixtures and critical exposure time-window may not represent the true effects. For example, in air…

统计理论 · 数学 2025-05-28 Honghyok Kim

For over a decade there have been contradictory claims in the literature about whether the local bulk flow motion of galaxies is consistent or in tension with the $\Lambda$CDM model. While it has become evident that systematics affect bulk…

宇宙学与河外天体物理 · 物理学 2023-10-27 A. M. Whitford , C. Howlett , T. M. Davis

The present work involves the comparison of various bulk Micromegas detectors having different design parameters. Six detectors with amplification gaps of $64,~128,~192,~220 ~\mu\mathrm{m}$ and mesh hole pitch of $63,~78 ~\mu\mathrm{m}$…

We report the development of a novel measurement system designed to measure bubble properties in bubble curtains (i.e. planar bubble plumes) in-situ alongside acoustical measurements. Our approach is based on electrical, contact-based…

流体动力学 · 物理学 2023-02-08 Simon Beelen , Martijn van Rijsbergen , Miloš Birvalski , Fedde Bloemhof , Dominik Krug

Monodisperse lipid-coated microbubbles are a promising route to unlock the full potential of ultrasound contrast agents for medical diagnosis and therapy. Here, we present a stand-alone lab-on-a-chip instrument that allows microbubbles to…

This study develops and validates a patient-specific Monte Carlo (MC) dosimetry framework for propagation-based phase-contrast breast CT (BCT) at the Imaging and Medical Beamline (IMBL), ANSTO Australian Synchrotron, for accurate mean…

If the mass excess of neutron-deficient nuclei and their neutron-rich mirror partners are both known, it can be shown that deviations of the Isobaric Mass Multiplet Equation (IMME) in the form of a cubic term can be probed. Such a cubic…

The particle filtration efficiency (PFE) of a respirator or face mask is one of its key properties. While the physics of particle filtration results in the PFE being size-dependent, measurement standards are specified using a single,…

The mass evolution of a coronal mass ejection (CME) is an important parameter characterizing the drag force acting on a CME as it propagates through interplanetary space. Spacecraft measure in-situ plasma densities of CMEs during crossing…

太阳与恒星天体物理 · 物理学 2019-04-26 L. Holzknecht , M. Temmer , M. Dumbovic , S. Wellenzohn , K. Krikova , S. G. Heinemann , M. Rodari , B. Vrsnak , A. M. Veronig

In the evolving landscape of ECG signal analysis, the challenge of limited transparency in machine learning models remains a significant barrier to their effective integration into clinical practice. This study addresses this issue by…

信号处理 · 电气工程与系统科学 2024-12-09 Toygar Tanyel , Sezgin Atmaca , Kaan Gökçe , M. Yiğit Balık , Arda Güler , Emre Aslanger , İlkay Öksüz

We develop a Maximum Likelihood estimator (MLE) to measure the masses of galaxy clusters through the impact of gravitational lensing on the temperature and polarization anisotropies of the cosmic microwave background (CMB). We show that, at…

With the development of the circular collider, it is necessary to make accurate physics experimental measurements of particle properties at higher luminosity $Z$ pole. Micro-pattern gaseous detectors (MPGDs), which contain Gaseous Electron…

仪器与探测器 · 物理学 2021-09-22 Zhiyang Yuan , Huirong Qi , Yue Chang , Ye Wu , Hongyu Zhang , Jian Zhang , Yuanbo Chen , Yiming Cai , Yulan Li , Zhi Deng , Hui Gong

Pulmonary embolisms (PE) are known to be one of the leading causes for cardiac-related mortality. Due to inherent variabilities in how PE manifests and the cumbersome nature of manual diagnosis, there is growing interest in leveraging AI…

图像与视频处理 · 电气工程与系统科学 2019-10-23 Deepta Rajan , David Beymer , Shafiqul Abedin , Ehsan Dehghan

Reliable quantification of natural and anthropogenic gas release (e.g.\ CO$_2$, methane) from the seafloor into the water column, and potentially to the atmosphere, is a challenging task. While ship-based echo sounders such as single beam…

计算机视觉与模式识别 · 计算机科学 2022-07-19 Mengkun She , Tim Weiß , Yifan Song , Peter Urban , Jens Greinert , Kevin Köser

Flow measurement in partially filled pipes presents greater complexity compared to fully filled systems, primarily due to the complex velocity distribution within the cross-section, which is a key source of measurement inaccuracy. To…

信号处理 · 电气工程与系统科学 2025-12-10 Mohammadhadi Mesmarian , Mohammad Mahdi Kharidar , Hossein Nejat Pishkenari
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