Results 41 to 50 of about 76,029 (267)

Screening of Obstructive Sleep Apnea with Empirical Mode Decomposition of Pulse Oximetry

, 2014
Detection of desaturations on the pulse oximetry signal is of great importance for the diagnosis of sleep apneas. Using the counting of desaturations, an index can be built to help in the diagnosis of severe cases of obstructive sleep apnea-hypopnea ...
Di Persia, Leandro E., Larrateguy, Luis D., Milone, Diego H., Schlotthauer, Gastón   +3 more
core   +1 more source

Investigating optical path in reflectance pulse oximetry using a multilayer monte carlo model [PDF]

, 2017
Despite the wide clinical uses of pulse-oximetry, the precise nature of the light-tissue interaction underneath the technique is not clearly understood.
Chatterjee, S., Kyriacou, P. A., Phillips, J. P.   +2 more
core   +1 more source

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

Advanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief, Petr Rozhin, Ilaria Bertuol, Ali Raza, Leonardo Viti, Subhankar Roy, Enrico Cavarzerani, Luca Sbuelz, Matteo Brilli, Andrea Serinolli, Jacopo Nicoletti, Riccardo Piccoli, Sebastián Castilla, Simone Dal Zilio, Enrique Rodríguez‐Castellón, Miriam Serena Vitiello, Maurizio Selva, Flavio Rizzolio, Alvise Perosa, Giovanni Antonio Salvatore, Domenico De Fazio   +20 more
wiley   +1 more source

Pulse oximeter accuracy and precision at five different sensor locations in infants and children with cyanotic heart disease

Indian Journal of Anaesthesia, 2010
Since the invention of pulse oximetry by Takuo Aoyagi in the early 1970s, its use has expanded beyond the perioperative care into neonatal, paediatric and adult intensive care units (ICUs).
Jyotirmoy Das, Amit Aggarwal, Naresh Kumar Aggarwal   +2 more
doaj   +1 more source

Following one's heart: cardiac rhythms gate central initiation of sympathetic reflexes [PDF]

, 2009
Central nervous processing of environmental stimuli requires integration of sensory information with ongoing autonomic control of cardiovascular function.
Critchley, Hugo D, Gray, Marcus A, Harrison, Neil A, Rylander, Karin, Wallin, B Gunnar   +4 more
core   +1 more source

Smart Catheters for Diagnosis, Monitoring, and Therapy

Advanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman, Samiha Ahmed, Majed Othman Althumayri, Megan Guy, Darlenne Chavez Lugo, Frances S. Ligler, George T. Ligler, Rahmi Oklu, Hiroshi Kawahira, Michael J. McShane, Jun Kameoka, Jonathan Bova, Hatice Ceylan Koydemir   +12 more
wiley   +1 more source

The role of pulse oximetry in neonatal screening for critical and complex congenital heart defects

Alʹmanah Kliničeskoj Mediciny, 2017
Background: Timely diagnosis of complex and critical congenital heart defects in neonates can help to avoid fatal complications of their natural history and to establish correct treatment strategies.
M. V. Tarayan, A. I. Drozdova, E. S. Efremov, N. V. Shkarina, L. V. Malyutina   +4 more
doaj   +1 more source

The accuracy of pulse oximetry in measuring oxygen saturation by levels of skin pigmentation: a systematic review and meta-analysis

BMC Medicine, 2022
Background During the COVID-19 pandemic, there have been concerns regarding potential bias in pulse oximetry measurements for people with high levels of skin pigmentation.
Chunhu Shi, Mark Goodall, Jo Dumville, James Hill, Gill Norman, Oliver Hamer, Andrew Clegg, Caroline Leigh Watkins, George Georgiou, Alexander Hodkinson, Catherine Elizabeth Lightbody, Paul Dark, Nicky Cullum   +12 more
doaj   +1 more source

Multimodal optical diagnostics of the microhaemodynamics in upper and lower limbs [PDF]

, 2019
The introduction of optical non-invasive diagnostic methods into clinical practice can substantially advance in the detection of early microcirculatory disorders in patients with different diseases.
Dremin, Viktor V., Dunaev, Andrey V., Goltsov, Alexey, Makovik, Irina N., Rafailov, Edik U., Sokolovski, Sergei G., Zherebtsov, Evgeny A., Zherebtsova, Angelina I.   +7 more
core   +4 more sources

3D‐Printable, Honeycomb‐Inspired Tissue‐Like Bioelectrodes for Patient‐Specific Neural Interface

Advanced Materials, EarlyView.
3D printed MRI‐compatible tissue‐like neural electrodes tailored to individual gyral patterns. This honeycomb‐inspired printable gel electrode (HiPGE) employs a bioinspired architecture with soft hydrogels, engineered to match the softness of brain tissue.
Marzia Momin, Luyi Feng, Xiaoai Chen, Salahuddin Ahmed, Basma AlMahmood, Li‐Pang Huang, Jiashu Ren, Xinyi Wang, Hyunjin Lee, Samuel R. Cramer, Nanyin Zhang, Sulin Zhang, Tao Zhou   +12 more
wiley   +1 more source