Microwave Sleep Apnoea Monitoring
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Microwave Sleep Apnoea Monitoring
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Author : Nemai Chandra Karmakar
language : en
Publisher: Springer
Release Date : 2017-12-21
Microwave Sleep Apnoea Monitoring written by Nemai Chandra Karmakar and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-21 with Technology & Engineering categories.
This book presents the design, development and field trials of radio frequency based wireless monitoring system for sleep apnoea patients. It contains 4 major areas including general background of wireless monitoring technology and MIMO in wireless body area network (WBAN), microwave hardware designs, virtual MIMO in WBAN and hardware system level implementation and field trials. At components level, this book presents the design theory, process and examples of bandpass filters, lowpass filters, low profile patch antennas, power amplifiers and oscillators which are the key elements in transducer designs in the body area network and cooperative communication wireless sensor network system. At system level, this book features the hardware integration, field trial and network coding techniques. This book also gives a presentation of virtual MIMO applications, e.g. MIMO implementation using FPGA, correlation coefficient measurement. The book will create impact in the fields of wireless monitoring technology in biomedical engineering, which have been growing exponentially.
Home Portable Monitoring For Obstructive Sleep Apnea An Issue Of Sleep Medicine Clinics
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Author : Michael R. Littner
language : en
Publisher: Saunders
Release Date : 2011
Home Portable Monitoring For Obstructive Sleep Apnea An Issue Of Sleep Medicine Clinics written by Michael R. Littner and has been published by Saunders this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Medical categories.
Portable Sleep monitoring is a very important method of diagnosis and follow-up for sleep-disordered breathing. This state-of-the-art issue reviews the most recent information on classification, technical specifications and types of portable monitors, use and limitations of portable monitoring with integration into positive airway pressure treatment. use of portable monitors in children and in patients with oral appliances. Use of portable monitoring for SDB treatment with upper airway surgery is also discussed. Current published standards incliding CMS requirements for portable monitoring are reviewed. Outcome measures, illustrative cases, and a comparison with polysomnogram are included. Finally, future directions are discussed.
Chipless Rfid Printing Technologies
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Author : Santanu Kumar Behera
language : en
Publisher: Artech House
Release Date : 2024-03-31
Chipless Rfid Printing Technologies written by Santanu Kumar Behera and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-31 with Technology & Engineering categories.
Chipless RFID Printing Technologies provides a comprehensive overview of advanced Chipless RFID communication, sensors, reader antennas, radar cross section and necessity of RFID printing technologies. The book describes sensing materials needed for Radio Frequency Identification (RFID) printing, focusing on the design of the passive printable resonators, and the signal processing approach used to eliminate the inaccuracy in detection at the receiver. It walks readers through the additive production approaches and suitable substrates for low-cost mass manufacturing of digital gadgets, consisting of RFID tags such as, wireless sensors, conductive tags and readers, touchpads for keyboards, nand show programs. Packed with numerous sensing strategies utilized in chipless RFID systems, the book introduces recent developments in the printing techniques of chipless RFID and their performances in conjunction with many one of a kind advanced features that are critical for low price chipless RFID device implementations. Broad coverage is given to printable tags for Biomedical and wearable applications, advanced RFID printing technologies, and full technical details about chipless RFID technology not found in other contemporary texts. The book presents a unique view of the challenges and future direction of research essential for researchers and research facilities to explore further research in chipless RFID. Readers will understand the core principles and classical applications of RFID technologies, making it an invaluable reference for engineers working on RF and microwave engineering. This is also a great resource for researchers currently working in the area, as well as graduate students looking to gain knowledge on Radio Frequency Identification.
Effectiveness Of Portable Monitoring Devices For Diagnosing Obstructive Sleep Apnea
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Author : Linda J. Lux
language : en
Publisher:
Release Date : 2004
Effectiveness Of Portable Monitoring Devices For Diagnosing Obstructive Sleep Apnea written by Linda J. Lux and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
CONTEXT: Obstructive sleep apnea (OSA) is a serious public health problem. Approximately 2 percent to 4 percent of middle-aged women and men, respectively, have this condition; the majority are undiagnosed. Undiagnosed and thus untreated, OSA is associated with significant morbidity and mortality. Effective treatment modalities should not be applied without an accurate diagnosis of OSA, but medical history and physical examination are insufficient to establish the diagnosis or its severity. Using the accepted reference standard test - attended, in-laboratory polysomnography (PSG) - can be expensive and involve long waiting times for studies, so various groups have developed portable technologies to classify patients in terms of the presence or absence of OSA and, for the former, level of severity. Such devices are intended for use in sleep laboratories or in the home. OBJECTIVES: We updated a 2002-2003 systematic review of OSA diagnostic testing to address the key questions of how portable sleep testing devices compared to PSG in diagnosing OSA and, assuming equivalent effectiveness, what sleep and physiologic factors and what patient and technician conditions were important to measure or have in place. The Centers for Medicare and Medicaid Services commissioned the Agency for Healthcare Research and Quality to provide a technology assessment that addressed the following: 1. How does the diagnostic test performance of unattended portable multi-channel home sleep testing compare to facility-based polysomnography in the diagnosis of obstructive sleep apnea?1.1. If unattended portable multi-channel home sleep testing is as effective as polysomnography in the diagnosis of obstructive sleep apnea, which parameters of sleep and cardiorespiratory function (i.e., sleep staging, body position, limb movements, respiratory effort, airflow, oxygen saturation, electrocardiogram) are required?1.2. If unattended portable multi-channel home sleep testing is as effective as polysomnography in the diagnosis of obstructive sleep apnea, what conditions (i.e., patient education, technician support) are required so that it is done correctly in the home? DATA SOURCES: We searched for studies published since the original review (i.e., from 2002 on) in MEDLINE, The Cochrane Library, the National Guidelines Clearinghouse, and the International Network of Agencies for Health Technologies Assessment (INAHTA) database; we also handsearched bibliographies of included articles. In MEDLINE, we used the following main terms in various combinations: polysomnography, oximetry, physiologic monitoring, and sleep apnea (with limits of human, adults, and English language); we refined searches using the terms airway resistance, upper airway resistance syndrome, respiratory disturbance index, autoset, snoring, and respiratory events related arousals as well as reproducibility of results, predictive value of tests, and sensitivity and specificity. STUDY SELECTION: We included studies of humans, both sexes, ages 18 and over, with any diagnosis of OSA; studies of any type of portable device used for diagnosis that also included a reference standard test (PSG or another acceptable test for diagnosing OSA); studies in which each analysis group, after the end of the study, included at least 10 subjects; and studies published in English. Specifically excluded were studies in which results from portable devices were not compared with results from PSG. Also excluded were reviews, meta-analyses, case reports, abstracts, letters, and editorials. DATA EXTRACTION: One investigator recorded abstracted data onto data abstraction forms used for the original review and created detailed evidence tables. A second investigator checked entries against the original articles. One investigator assigned initial classifications for level of evidence and presence or absence of eight quality indicators and a second investigator reviewed these; disagreements were resolved by consensus discussion. A third investigator combined level of evidence and quality indicators into a summary quality grade; the other investigators reviewed these grades, with differences resolved by consensus. DATA SYNTHESIS: We identified 172 unique titles and abstracts from the literature searches, and excluded 157 articles as not meeting inclusion criteria; reasons included the fact that PSG studies were not performed on all patients, that the portable device was an electroencephalogram (EEG), and that the study assessed a telemedicine approach that did not compare a portable device to the PSG. We obtained 15 articles for full review and retained 12 for inclusion here. These 12 studies fell into four categories: Type 3 devices used in laboratory settings (four studies); Type 3 devices tested in homes whether or not they were also tested in facilities (two studies); Type 4 devices in laboratory settings (six studies); and Type 4 devices tested in homes (whether or not in facilities, three studies). Type 3 devices include a minimum of four channels and must monitor at least two channels of respiratory movement or respiratory movement and airflow, and heart rate or ECG and oxygen saturation to define an event; generally, no electroencephalogram (EEG) signals are monitored. Level 4 devices include only one or two channels of physiologic signals and generally use only one channel (either saturated oxygen or airflow) to define a sleep-disordered breathing event; no EEG signals are monitored. Most articles provided only comparisons of the results from portable monitoring done simultaneously with full PSG in the laboratory, i.e., "a side-by-side" study. The in-laboratory simultaneous studies, which used technologies identical or similar to those in the previous review, produced sensitivity and specificity results for diagnosing OSA similar to those reported earlier; that is, the newer studies produced no meaningful changes in the level or quality of evidence for the effectiveness for home monitoring devices in diagnosing OSA. Only four of these studies (two of Type 3 and two of Type 4 devices) were graded good or fair quality. Ultimately, we focused on the five studies with in-home testing, because the questions we were asked concerned the effectiveness of unattended monitoring in the home. Four in-home studies employed technologies similar or identical to those reviewed before; of these, two studies (one of good quality, one poor) used Type 3 devices and two (one of fair quality , one poor) used Type 4 devices. Reported sensitivity and specificity values were similar to those from older studies, so the newer studies yielded no major information that would change the previous basic conclusions about portable devices used in the home. The one in-home study using a new technology, of fair quality, produced likelihood ratios that indicated that the test had little effect in changing pretest probabilities of the presence or absence of OSA. Reported data loss in the home studies ranged from a low of 3 percent to a high of 33 percent, in a subgroup of patients who did their own hookup. Automated scoring appeared to agree less closely with the reference standard than manual scoring. Internal validity of the five in-home studies was mixed: one study of good quality, two of fair quality, and two of poor quality. In terms of external validity, the patient populations were mostly male, middle-aged, and with high pretest probabilities of OSA; comorbidities were generally not specified or taken into account in analyses. Finally, these studies typically did not evaluate the accuracy of clinical management decisions based on portable results compared to those based on the reference standard. CONCLUSIONS: This newer body of evidence does not materially change earlier findings regarding in-home devices for diagnosing OSA. Choices of cutoffs for determining OSA by AHI or RDI differed widely across these studies, making cross-study comparisons impossible. The better studies yielded sensitivity and specificity values (or LRs) that provided modes changes in the probability of OSA over the pretest probability. In studies that directly compared automated versus manual scoring from home monitoring devices, manual scoring correlated better with data from laboratory PSG than did automated scoring.
Advanced Rfid Systems Security And Applications
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Author : Karmakar, Nemai Chandra
language : en
Publisher: IGI Global
Release Date : 2012-09-30
Advanced Rfid Systems Security And Applications written by Karmakar, Nemai Chandra and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-30 with Technology & Engineering categories.
As modern technologies continue to transform and impact our society, Radio Frequency Identification has emerged as one of the top areas of study to do just that. Using its wireless data capturing technique and incredible capabilities such as automatic identification, tracking, handling large amounts of data, and flexibility in operation, RFID aims to revamp the new millennium. Advanced RFID Systems, Security, and Applications features a comprehensive collection of research provided by leading experts in both academia and industries. This leading reference source provides state-of-the- art development on RFID and its contents will be of the upmost use to students and researchers at all levels as well as technologists, planners, and policy makers. RFID technology is progressing into a new phase of development.
Portable Monitoring Devices For Diagnosis Of Obstructive Sleep Apnea At Home
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Author : Sarah Ndegwa
language : en
Publisher:
Release Date : 2009
Portable Monitoring Devices For Diagnosis Of Obstructive Sleep Apnea At Home written by Sarah Ndegwa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Health insurance continuation coverage categories.
Proceedings Of 6th International Conference On Recent Trends In Computing
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Author : Rajendra Prasad Mahapatra
language : en
Publisher: Springer Nature
Release Date : 2021-04-20
Proceedings Of 6th International Conference On Recent Trends In Computing written by Rajendra Prasad Mahapatra and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-20 with Technology & Engineering categories.
This book is a collection of high-quality peer-reviewed research papers presented at Sixth International Conference on Recent Trends in Computing (ICRTC 2020) held at SRM Institute of Science and Technology, Ghaziabad, Delhi, India, during 3 – 4 July 2020. The book discusses a wide variety of industrial, engineering and scientific applications of the emerging techniques. The book presents original works from researchers from academic and industry in the field of networking, security, big data and the Internet of things.
Battery Operated Devices And Systems
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Author : Gianfranco Pistoia
language : en
Publisher: Elsevier
Release Date : 2008-09-24
Battery Operated Devices And Systems written by Gianfranco Pistoia and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-09-24 with Technology & Engineering categories.
Battery Operated Devices and Systems provides a comprehensive review of the essentials of batteries and battery applications as well as state-of-the-art technological developments. The book covers the most recent trends, especially for the ubiquitous lithium ion batteries. It lays particular emphasis on the power consumption of battery operated devices and systems and the implications for battery life and runtime. Battery management is also dealt with in detail, particularly as far as the charging methods are concerned, along with the criteria of battery choice. This book describes a variety of portable and industrial applications and the basic characteristics of all primary and secondary batteries used in these applications. Portable applications include mobile phones, notebook computers, cameras, camcorders, personal digital assistants, medical instruments, power tools, and portable GPS. Industrial applications range from aerospace and telecommunications to emergency systems, load levelling, energy storage, toll collection, different meters, data loggers, oil drilling, oceanography, and meteorology. The book also discusses wireless connectivity, i.e. Wi-Fi, Bluetooth and Zigbee, and concludes with some market considerations. Links to further reading are provided through the 275 references. This book will be a valuable information source for researchers interested in devices and systems drawing power from batteries. It will also appeal to graduates working in research institutions; universities and industries dealing with power sources and energy conversion; civil, electrical and transport engineers; and chemists. A comprehensive review of battery applications Includes 209 figures and 62 tables Describes state-of-the-art technological developments
Bioinformatics And Biomedical Engineering
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Author : Ignacio Rojas
language : en
Publisher: Springer Nature
Release Date : 2023-06-28
Bioinformatics And Biomedical Engineering written by Ignacio Rojas and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-06-28 with Science categories.
This volume constitutes the proceedings of the 10th International Work-Conference on IWBBIO 2023, held in Meloneras, Gran Canaria, Spain, during July 12-14, 2022. The total of 79 papers presented in the proceedings, was carefully reviewed and selected from 209 submissions. The papers cove the latest ideas and realizations in the foundations, theory, models, and applications for interdisciplinary and multidisciplinary research encompassing disciplines of computer science, mathematics, statistics, biology, bioinformatics, and biomedicine.
Vision Sensing And Analytics Integrative Approaches
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Author : Md Atiqur Rahman Ahad
language : en
Publisher: Springer Nature
Release Date : 2021-06-05
Vision Sensing And Analytics Integrative Approaches written by Md Atiqur Rahman Ahad and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-05 with Technology & Engineering categories.
This book serves as the first guideline of the integrative approach, optimal for our new and young generations. Recent technology advancements in computer vision, IoT sensors, and analytics open the door to highly impactful innovations and applications as a result of effective and efficient integration of those. Such integration has brought to scientists and engineers a new approach —the integrative approach. This offers far more rapid development and scalable architecting when comparing to the traditional hardcore developmental approach. Featuring biomedical and healthcare challenges including COVID-19, we present a collection of carefully selective cases with significant added- values as a result of integrations, e.g., sensing with AI, analytics with different data sources, and comprehensive monitoring with many different sensors, while sustaining its readability.