Article
Medicine, General & Internal
Siyao Liu, Quanping Zhao, Xinmei Ren, Ying Cui, Houpu Yang, Siyuan Wang, Miao Liu, Shu Wang
Summary: The study aimed to determine the reference range and cutoff values for early detection of breast cancer-related lymphedema using bioelectrical impedance technology, with significant differences found between healthy individuals and patients with lymphedema. The Youden index-based cutoff points and mean + 2SD showed similar identification capacity for lymphedema, with the former seeming to distinguish more patients than the mean + 3SD values.
INTERNATIONAL JOURNAL OF MEDICAL SCIENCES
(2021)
Article
Chemistry, Physical
Agustin O. Alvarez, Sandheep Ravishankar, Francisco Fabregat-Santiago
Summary: Small-perturbation techniques such as IS, IMPS, and IMVS are useful tools for characterizing and modeling photovoltaic and photoelectrochemical devices. A unified theoretical framework and procedure to combine the spectral analysis of these techniques greatly reduce the sample space of possible equivalent circuits, allowing for parameters to be obtained with high reliability by considering absorptance and separation efficiency.
Article
Engineering, Electrical & Electronic
T. Jamie Healey, Emily Rose Billinge, James J. P. Alix, Visakan Kadirkamanathan, Charlotte R. Kemp
Summary: Mismatch in electrode impedance is a common source of artefact in electrical impedance spectroscopy systems. A new clinical system has been developed to investigate muscle impedance anisotropy with reduced levels of artefact, even in the presence of significant mismatch in electrode impedances. The system integrates buffering at the front-end and operates over a physiologically relevant frequency range.
IEEE SENSORS JOURNAL
(2021)
Article
Multidisciplinary Sciences
David A. Connelly, Gyorgy Csaba, Hadrian Renaldo O. Aquino, Gary H. Bernstein, Alexei Orlov, Wolfgang Porod, Jonathan Chisum
Summary: This paper introduces a system-level efficiency analysis and a rapid design methodology for efficient sub-micron, spin-wave transducers in a microwave system. By comparing magnetostatic-wave transducer theory to electromagnetic simulations, the paper finds that the theory is useful for rapid yet accurate transducer design. It further suggests that by modifying the theory to include the exchange interaction, it can also be useful for designing transducers launching magnons at exchange wavelengths.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Electrical & Electronic
Fateh Benmahmoud, Pierre Lemaitre-Auger, Smail Tedjini
Summary: A folded planar dipole antenna was designed for operation close to the human body. It reduces backward radiation to protect the body from electromagnetic emissions. The antenna has good impedance bandwidth characteristics and mechanical robustness, but lower radiation efficiency.
IEEE ANTENNAS AND PROPAGATION MAGAZINE
(2023)
Article
Engineering, Electrical & Electronic
Riccardo Raho, Elisa Scarpa, Antonio Nunzio D'Angelo, Denis Desmaele, Federica Raheli, Antonio Qualtieri, Francesco Rizzi, Massimo De Vittorio
Summary: This paper reports on the fabrication and characterization of a novel reusable Flexible Dry Electrode (FDE) for medical applications. The FDEs were made using two flexible substrates and conductive layers, and their performance was tested and compared to commercial gel electrodes. The results showed that the FDEs had comparable performance in bioelectrical impedance analysis (BIA) measurements and demonstrated promising long-term reliability for wearable and portable devices.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Review
Chemistry, Multidisciplinary
Lorenzo Lippi, Alessio Turco, Stefano Moalli, Mauro Nascimben, Claudio Curci, Alessandro de Sire, Lia Rimondini, Marco Invernizzi
Summary: Upper-limb lymphedema is a chronic condition characterized by lymphatic fluid accumulation, leading to swelling and impairment in the arm or hand. Various methods for volumetric assessment of upper-limb lymphedema have been proposed, but each has specific strengths and limitations. Factors such as operator experience and equipment availability also impact the accuracy and practicality of volume assessment. Precise volumetric assessment is crucial for improving rehabilitation, patient education, and research outcomes.
APPLIED SCIENCES-BASEL
(2023)
Review
Clinical Neurology
Basilio Vescio, Andrea Quattrone, Rita Nistico, Marianna Crasa, Aldo Quattrone
Summary: This review systematically presents new solutions for the analysis and diagnosis of tremors, introducing different techniques and devices that have been proven to be useful in monitoring therapy efficacy and aiding in differential diagnosis. The potentialities and limitations of these new tools are highlighted, with a look towards future developments.
FRONTIERS IN NEUROLOGY
(2021)
Article
Materials Science, Multidisciplinary
Jaianth Vijayakumar, Marcos Gaspar, Laura Maurel, Michael Horisberger, Frithjof Nolting, C. A. F. Vaz
Summary: This article investigates the frequency response of the dielectric layer in artificial multiferroic materials to determine the impact of residual layers, charge traps, and defect migration on high-frequency interfacial charge modulation. The study finds that non-stoichiometric Si3N4 films are largely affected by point defects, while stoichiometric films exhibit intrinsic dielectric behavior at high frequencies.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Automation & Control Systems
Qiujiang Liu, Mingli Wu, Jing Li, Shaobing Yang
Summary: This article proposes a harmonic generator to directly measure the impedance of traction power supply systems. Field tests on actual railways have verified the effectiveness and feasibility of this method. The study found that locations do not change resonant frequencies, while railway lengths distinctly shift resonant frequencies.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Review
Nanoscience & Nanotechnology
Muyang Lin, Hongjie Hu, Sai Zhou, Sheng Xu
Summary: Current wearable devices are mainly designed to record superficial signals from the skin, but the detection of deep-tissue signals remains a challenge. This Review discusses the engineering of soft wearable devices and focuses on electrical, electromagnetic, thermal, and mechanical sensing approaches, emphasizing penetration depth and temporal and spatial resolutions.
NATURE REVIEWS MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Martin Hantschke, Iasonas F. Triantis
Summary: This study investigates the effects of electrode topology and configuration on tetrapole electrical impedance measurement systems in microfluidic devices. Different electrode configurations were found to exhibit fundamental differences in sensitivity distribution, affecting performance when measuring heterogeneous fluids.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Taku Hachisu, Kenji Suzuki
Summary: This paper introduces the design guidelines of a smart bracelet device called EnhancedTouch and presents experimental research on its influencing factors. The results indicate that a shorter distance between devices and a larger contact area of the hands result in a relatively higher signal-to-noise ratio (SNR).
IEEE SENSORS JOURNAL
(2021)
Article
Medicine, General & Internal
Luigi Losco, Alberto Bolletta, Alessandro de Sire, Shih-Heng Chen, Gokhan Sert, Dicle Aksoyler, Jonathan Velazquez Mujica, Marco Invernizzi, Emanuele Cigna, Hung-Chi Chen
Summary: Bilateral lower extremity lymphedema is a rare and debilitating condition. This study found that a combination of lymph node transfer and reductive methods can effectively treat the condition and significantly reduce the number of cellulitis episodes. Timely treatment and BMI control are crucial in preventing cellulitis.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Oncology
Katie Riches, Kwok-Leung Cheung, Vaughan Keeley
Summary: This paper explores the validity and reliability of measures to diagnose breast lymphedema, including ultrasound and tissue dielectric constant. The study found that breast lymphedema is associated with patient characteristics and breast cancer treatments.
Review
Biodiversity Conservation
Sara Kophamel, Bjorn Illing, Ellen Ariel, Morgan Difalco, Lee F. Skerratt, Mark Hamann, Leigh C. Ward, Diana Mendez, Suzanne L. Munns
Summary: Wildlife health assessments are important for identifying populations at risk, but there are gaps in international collaboration and research on countries with high biodiversity. Recommendations include following assessment protocols, using adequate sample sizes, and integrating physiological and ecological understanding into species conservation planning.
CONSERVATION BIOLOGY
(2022)
Article
Nutrition & Dietetics
Grace L. Rose, Morgan J. Farley, Leigh C. Ward, Gary J. Slater, Tina L. Skinner, Shelley E. Keating, Mia A. Schaumberg
Summary: This study investigated the accuracy of various body composition techniques compared to the reference 4-compartment (4C-R) model. It found that only the 3C-R and 4C-R equations were acceptable for individual measurement, while all techniques reached equivalency to the 4C-R model for fat-free mass (FFM). Sex and age had minimal influence on accuracy. For group estimates, any technique could be used for FFM, but incorporating total body water (TBW) measurement was necessary for accurate measurement of fat mass (FM).
APPLIED PHYSIOLOGY NUTRITION AND METABOLISM
(2022)
Article
Medicine, Research & Experimental
Leigh C. Ward, Louise A. Koelmeyer, Emma Moloney
Summary: This study explored the utility of bioelectrical impedance parameters in staging breast cancer-related lymphedema through hierarchical agglomerative cluster analysis. The cluster analysis of impedance data could potentially serve as a useful adjunct objective assessment for staging lymphedema by grouping patients with similar impedance characteristics.
LYMPHATIC RESEARCH AND BIOLOGY
(2022)
Article
Biophysics
Leigh C. Ward, Jonathan C. K. Wells, Jaz Lyons-Reid, Mya T. Tint
Summary: This study aims to investigate the variation in body proportion factor (K (B)) across individuals and develop a method for individualized estimation. Using publicly available body dimension data, K (B) values were calculated and look-up tables were created. The results indicate that using individualized K (B) values can improve the accuracy of body composition prediction, particularly in individuals with smaller body habitus.
PHYSIOLOGICAL MEASUREMENT
(2022)
Editorial Material
Nutrition & Dietetics
Leigh C. Ward
EUROPEAN JOURNAL OF CLINICAL NUTRITION
(2022)
Article
Oncology
Patricia Martinez-Jaimez, Pilar Fuster Linares, Neil Piller, Jaume Masia, Takumi Yamamoto, Luis Lopez-Montoya, Cristina Monforte-Royo
Summary: This study aimed to establish an international consensus on the multidisciplinary prevention of breast cancer-related lymphedema (BCRL) by surveying experts' opinions. The consensus provides a foundation for the development of standardized clinical guidelines.
EUROPEAN JOURNAL OF CANCER CARE
(2022)
Article
Food Science & Technology
Fernanda Santos Thomaz, Yuen P. Tan, Craig M. Williams, Leigh C. Ward, Simon Worrall, Sunil K. Panchal
Summary: This study evaluated the content of 6-MSITC in hydroponically grown wasabi and its effects on rats fed with a high-carbohydrate, high-fat diet. Wasabi was found to reduce body weight, fat mass, plasma triglycerides, total cholesterol, blood pressure, and blood glucose concentration.
Article
Nutrition & Dietetics
Amy N. Nevin, Susan Urquhart, Sridhar S. Atresh, Timothy J. Geraghty, Elizabeth Walter, Elizabeth G. Ryan, Angela Vivanti, Leigh C. Ward, Ingrid J. Hickman
Summary: This study aimed to investigate resting energy expenditure during pressure injury surgical repair, compare it with available energy prediction equations, and explore the association between body composition and wound healing. The results showed that pressure injuries and surgical repair did not have an impact on resting energy expenditure, and the energy prediction equation incorporating fat-free mass performed the best. Although not statistically significant, clinically important differences in body composition were observed in individuals with wound breakdown.
EUROPEAN JOURNAL OF CLINICAL NUTRITION
(2023)
Article
Oncology
Natalie Kruger, Melanie L. Plinsinga, Rhian Noble-Jones, Neil Piller, Vaughan Keeley, Sandra C. Hayes
Summary: This study aimed to assess the understanding of Australian medical graduates regarding the lymphatic system and lymphoedema. Findings indicated a perceived lack of understanding of these topics among graduates and insufficient coverage in medical curricula.
Article
Medicine, Research & Experimental
Jennifer Phillips, Susan Witt, Neil Piller, Susan Gordon
Summary: The aim of this study is to investigate the relationship between seasonal climate variation and limb size, volume, fluid distribution, and diagnosis in women following breast cancer treatment. The results showed no significant correlation between seasonal variation in climate and upper limb size, volume, or fluid distribution in women diagnosed with or at risk of developing breast cancer-related lymphedema (BCRL), but the diagnosis of lymphedema varied between individual participants throughout the year.
LYMPHATIC RESEARCH AND BIOLOGY
(2023)
Article
Medicine, Research & Experimental
Vaughan Keeley, Katie Riches, Leigh Ward, Peter J. Franks
Summary: This preliminary study evaluated the impact of different dosing protocols of pneumatic compression device (PCD) therapy on lymphedema patients. The results suggest that 1-hour daily PCD treatment may have potential benefits in reducing limb volume and extracellular fluid volume. Further research is needed to compare the treatment protocols and assess the differences over a longer study period using various measurement techniques.
LYMPHATIC RESEARCH AND BIOLOGY
(2023)
Article
Endocrinology & Metabolism
Leigh C. Ward, Steven Brantlov
Summary: Measurement of phase angle using bioimpedance analysis (BIA) is popular for assessing cellular health, although the exact meaning of this term is not always clear. Current research often lacks understanding of the underlying biophysical models and mechanistic explanations. This review provides an understanding of the electrical models used to describe tissue properties, with emphasis on phase angle. The review also highlights practical concerns in measurement and the potential of bioimpedance spectroscopy (BIS) and simulation modeling.
REVIEWS IN ENDOCRINE & METABOLIC DISORDERS
(2023)
Article
Nutrition & Dietetics
Jaz Lyons-Reid, Leigh C. Ward, Jose G. B. Derraik, Mya Thway-Tint, Cathriona R. Monnard, J. Manuel Ramos Nieves, Benjamin B. Albert, Timothy Kenealy, Keith M. Godfrey, Shiao-Yng Chan, Wayne S. Cutfield
Summary: The lack of validated equations for bioimpedance measurements in preschool children limits their application in measuring body composition accurately.
EUROPEAN JOURNAL OF CLINICAL NUTRITION
(2023)
Review
Health Care Sciences & Services
Andrea Mangion, Bruno Ivasic, Neil Piller
Summary: e-Health refers to the use of technologies to enhance patient care and collect/share health information. In the field of lymphedema care, there are various e-Health modalities being used, such as robotics, artificial intelligence, electronic medical records, wearable devices, and online information.
TELEMEDICINE AND E-HEALTH
(2023)
Article
Biodiversity Conservation
Sara Kophamel, Donna Rudd, Leigh C. Ward, Edith Shum, Ellen Ariel, Diana Mendez, Jemma Starling, Renee Mellers, Richard K. Burchell, Suzanne L. Munns
Summary: This study aimed to establish reference intervals (RIs) for blood parameters of green turtles using Bayesian modeling. The RIs were found to be comparable to previously published values and had narrower credible intervals. Most blood analytes did not vary significantly with foraging ground, body mass, or curved carapace length. However, length and body mass effects were observed for certain analytes, and significant differences between foraging grounds were found for several blood parameters. The derived RIs will be useful for future population health assessments and conservation efforts.
CONSERVATION PHYSIOLOGY
(2022)
