Article
Computer Science, Information Systems
Eduardo Alcain, Pedro R. Fernandez, Ruben Nieto, Antonio S. Montemayor, Jaime Vilas, Adrian Galiana-Bordera, Pedro Miguel Martinez-Girones, Carmen Prieto-de-la-Lastra, Borja Rodriguez-Vila, Marina Bonet, Cristina Rodriguez-Sanchez, Imene Yahyaoui, Norberto Malpica, Susana Borromeo, Felipe Machado, Angel Torrado-Carvajal
Summary: Medical imaging is an essential part of diagnosis and treatment, requiring accurate and real-time processing of large amounts of imaging data. Hardware acceleration techniques play a crucial role in accelerating implementations for medical imaging researchers and developers.
Article
Physics, Applied
Hirozumi Takeshima, Tomohiko Tanaka, Ryo Imai
Summary: This paper proposed a novel position detection method for an echo-guided intervention with a small photoacoustic transmitter, and used a Kalman filter-based filtering method to improve the accuracy of the position detection. Experimental results showed that the filter reduced 52% of the root mean squared error during position detection in an elevation direction.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2021)
Article
Acoustics
Sathyan Sandeep, Samuel Raetz, Nikolay Chigarev, Nicolas Pajusco, Theo Threard, Mathieu Edely, Alain Bulou, Andreas Zerr, Vitalyi E. Gusev
Summary: Time-domain Brillouin scattering (TDBS) is a technique used for imaging/evaluation of materials in the fields of material science and biology. This study applied TDBS to monitor the destruction process of a lithium niobate single crystal under non-hydrostatic compression, revealing the ability of TDBS to evaluate the orientation/inclination of material interfaces. The findings of this study pave the way for further expansion of TDBS imaging in analyzing fascinating processes/phenomena during material destruction.
Article
Computer Science, Interdisciplinary Applications
Yuan Fang, Kazem Bakian-Dogaheh, Mahta Moghaddam
Summary: In this paper, a new variational Born iterative method (VBIM) is proposed for real-time microwave imaging (MWI) applications. The S-parameter volume integral equation and waveport vector Green's function are utilized to utilize the measured signal of the MWI system. The VBIM-RIS method requires less computational time and implements the graphics processing unit based acceleration technique for real-time imaging.
IEEE TRANSACTIONS ON MEDICAL IMAGING
(2023)
Article
Chemistry, Analytical
Joao Henriques, Fabio A. Schaberle, Carlos Serpa, Alberto A. C. C. Pais, Catarina Cardoso, Carla Vitorino
Summary: The Food and Drug Administration established foundations for the application of Process Analytical Technologies (PAT) in real-time control of drug manufacturing process in 2004, mainly focused on solid formulations. To expand the application of PAT principles to injectable drug products, the development of appropriate manufacturing process control tools is necessary. Photoacoustics, a non-invasive technique, shows potential for real-time control of the manufacturing process of injectable drug products.
Article
Biochemical Research Methods
Joan E. Nichols, Sasha R. Azar
Summary: The combined modality allows real-time imaging of mouse lungs at both whole-organ and cellular scales.
Review
Radiology, Nuclear Medicine & Medical Imaging
Krishna S. Nayak, Yongwan Lim, Adrienne E. Campbell-Washburn, Jennifer Steeden
Summary: Real-time magnetic resonance imaging (RT-MRI) is an imaging technique that allows for imaging dynamic processes without the need for repetition or synchronization. It has unique diagnostic value in areas of the body that undergo irregular motion, such as the heart and gastrointestinal system, and plays an important role in image guidance of invasive procedures requiring soft-tissue contrast and flow information.
JOURNAL OF MAGNETIC RESONANCE IMAGING
(2022)
Article
Acoustics
Maxime Bilodeau, Felix-Antoine Amyot, Patrice Masson, Nicolas Quaegebeur
Summary: The paper presents the application of the Correlation-Based (CB) imaging method in estimating the phase of complex reflection coefficients. The resulting Correlation-Based Phase Imaging (CBPI) method can be used to segment and identify different features or tissue elasticity variations in a given medium. Numerical validation and experimental datasets demonstrate the potential of CBPI on scatterers and specular reflectors.
Article
Acoustics
Alireza Jangjoo, Bahman Lashkari, Koneswaran Sivagurunathan, Andreas Mandelis, Mohammad Reza Baezzat
Summary: The report introduces a novel photoacoustic modality using pulsed chirp excitation and frequency-domain processing, as well as a method for enhancing axial resolution in photoacoustic images. Experimental results showed higher SNR and axial resolution in TC-PACT compared to conventional FD photoacoustics.
Article
Multidisciplinary Sciences
Hooseok Lee, Hoon Ko, Heewon Chung, Yunyoung Nam, Sangjin Hong, Jinseok Lee
Summary: In this study, PPGI sensors were mounted on a robot for active and autonomous HR estimation. A proposed algorithm simplified the extraction of facial skin images and selected pixels based on the most frequent saturation value to achieve accurate HR assessment. The algorithm was validated on two datasets, demonstrating high accuracy and processing efficiency.
SCIENTIFIC REPORTS
(2022)
Article
Acoustics
James Joseph, Mithun Kuniyil Ajith Singh, Naoto Sato, Sarah E. Bohndiek
Summary: Recent advances in high power, pulsed, light emitting diodes (LEDs) have shown potential for photoacoustic imaging. This study validated the performance of a commercial dual-wavelength LED-based PAI system, showing high temporal stability in phantom studies and successful in vivo dual-wavelength imaging. LED-based excitation shows promise for future application in functional and molecular PAI.
Article
Automation & Control Systems
Parsa Sarosh, Shabir Ahmad Parah, Bilal Ahmad Malik, Mohammad Hijji, Khan Muhammad
Summary: This article presents a cybersecurity framework for medical images in a smart healthcare system. It introduces two novel two-dimensional chaotic maps that generate highly robust cipher images, protecting medical data against cyberattacks. The proposed solution ensures data privacy and a seamless treatment experience.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2023)
Article
Optics
Liao Ma, Ning Leng, Ming Jin, Ming Bai
Summary: This paper presents an innovative optically controlled plasma scattering technique for imaging electromagnetic fields. The plasma induced by the photoconductive effect is used as an optically controlled scattering probe to image the amplitude and phase of electromagnetic fields in real time. This method offers advantages such as ultrafast speed, super-resolution, ultra-wideband response, low-cost, and vectorial wave mapping ability.
Article
Acoustics
Motonobu Tomoda, Akihisa Kubota, Osamu Matsuda, Yoshihiro Sugawara, Oliver B. Wright
Summary: We introduce a picosecond optoacoustic technique that can map both the longitudinal sound velocity v and the refractive index n in solids by automated measurement at multiple probe incidence angles in time-domain Brillouin scattering. By using a fused silica sample with a deposited titanium film as an optoacoustic transducer, we successfully map v and n in the depth direction. This technique has potential applications in imaging sound velocity and refractive index distributions in three dimensions in inhomogeneous samples such as biological cells.
Article
Computer Science, Hardware & Architecture
Nikita Ahuja, Harsha Bikkavilli, Zhaoqi Chen, Mary Mehrnoosh Eshaghian-Wilner, Abhishek Mittal, Kodiak Ravicz, Bhimsen Sangal, Sagarneel Sarma, Mike Schlesinger, Ariana Wilner
Summary: This short communication introduces a theoretical model of a swarm of wireless robots for cellular-level diagnosis and treatment, along with a distributed position and orientation tracking algorithm. Simulation results demonstrate the effectiveness of the algorithm.
JOURNAL OF SUPERCOMPUTING
(2022)