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https://www.readbyqxmd.com/read/28229352/linshom-thermodynamic-sensor-is-a-reliable-alternative-to-capnography-for-monitoring-respiratory-rate
#1
David Preiss, Benjamin A Drew, James Gosnell, Bhavani S Kodali, James H Philip, Richard D Urman
Monitoring ventilation accurately is a technically challenging, yet indispensable aspect of patient care in the intra- and post-procedural settings. A new prototypical device known as the Linshom Respiratory Monitoring Device (LRMD) has been recently designed to non-invasively, inexpensively, and portably measure respiratory rate. The purpose of this study was to measure the accuracy and variability of LRMD measurements of respiratory rate relative to the measurement of capnography. In this prospective study, participants were enrolled and individually fitted with a face mask monitored by the LRMD and capnography...
February 22, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28229053/large-artery-stiffness-assessment-using-sphygmocor-technology
#2
REVIEW
Mark Butlin, Ahmad Qasem
Large artery stiffness assessment has been an integral part of the SphygmoCor technology since 1998. Aortic stiffness is approximated with non-invasive measurement of carotid-femoral pulse wave velocity, with improvements made with time to make the assessment procedure quicker and more user independent. Also standard in the devices is the ability to reliably calculate the central aortic waveform shape from a peripheral pressure waveform from either the brachial or radial artery. This waveform contains much information beyond peak and trough (systolic and diastolic pressure)...
January 2017: Pulse (Basel, Switzerland)
https://www.readbyqxmd.com/read/28227891/design-and-preliminary-assessment-of-a-smart-textile-for-respiratory-monitoring-based-on-an-array-of-fiber-bragg-gratings
#3
C Massaroni, M Ciocchetti, G Di Tomaso, P Saccomandi, M A Caponero, A Polimadei, D Formica, E Schena, C Massaroni, M Ciocchetti, G Di Tomaso, P Saccomandi, M A Caponero, A Polimadei, D Formica, E Schena, G Di Tomaso, M A Caponero, E Schena, M Ciocchetti, C Massaroni, A Polimadei, P Saccomandi, D Formica
Comfortable and easy to wear smart textiles have gained popularity for continuous respiratory monitoring. Among different emerging technologies, smart textiles based on fiber optic sensors (FOSs) have several advantages, like Magnetic Resonance (MR)-compatibility and good metrological properties. In this paper we report on the development and assessment of an MR-compatible smart textiles based on FOSs for respiratory monitoring. The system consists of six fiber Bragg grating (FBG) sensors glued on the textile to monitor six compartments of the chest wall (i...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227820/evaluating-respiratory-muscle-activity-using-a-wireless-sensor-platform
#4
Luis Estrada, Abel Torres, Leonardo Sarlabous, Raimon Jane, Luis Estrada, Abel Torres, Leonardo Sarlabous, Raimon Jane, Raimon Jane, Luis Estrada, Leonardo Sarlabous, Abel Torres
Wireless sensors are an emerging technology that allows to assist physicians in the monitoring of patients health status. This approach can be used for the non-invasive recording of the electrical respiratory muscle activity of the diaphragm (EMGdi). In this work, we acquired the EMGdi signal of a healthy subject performing an inspiratory load test. To this end, the EMGdi activity was captured from a single channel of electromyography using a wireless platform which was compared with the EMGdi and the inspiratory mouth pressure (Pmouth) recorded with a conventional lab equipment...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227705/an-affordable-cuff-less-blood-pressure-estimation-solution
#5
Monika Jain, Niranjan Kumar, Sujay Deb, Monika Jain, Niranjan Kumar, Sujay Deb, Monika Jain, Sujay Deb, Niranjan Kumar
This paper presents a cuff-less hypertension pre-screening device that non-invasively monitors the Blood Pressure (BP) and Heart Rate (HR) continuously. The proposed device simultaneously records two clinically significant and highly correlated biomedical signals, viz., Electrocardiogram (ECG) and Photoplethysmogram (PPG). The device provides a common data acquisition platform that can interface with PC/laptop, Smart phone/tablet and Raspberry-pi etc. The hardware stores and processes the recorded ECG and PPG in order to extract the real-time BP and HR using kernel regression approach...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227621/non-contact-automatic-respiration-monitoring-in-restrained-rodents
#6
Behnaz Rezaei, Jared Lowe, Jason R Yee, Stephen Porges, Sarah Ostadabbas, Behnaz Rezaei, Jared Lowe, Jason R Yee, Stephen Porges, Sarah Ostadabbas, Sarah Ostadabbas, Jason R Yee, Stephen Porges, Jared Lowe, Behnaz Rezaei
Prairie voles are socially monogamous rodents that form social bonds similar to those seen in primates. Social behavior investigation in these species, that include studying their breathing regulation, can provide us with an invaluable psychological model to understand social and emotional functions in both animals and humans. There have been several studies associated with the respiratory pattern of these species in the state of fear-induced defense. However, non-invasive measurement methods employed so far suffer from the lack of a natural experiment environment for the rodents...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227618/non-invasive-cardiac-output-monitoring-in-pharmacology-a-plethysmographie-solution-in-rats
#7
Timothe Flenet, Julie Fontecave-Jallon, Stephane Tanguy, Francois Boucher, Pierre Baconnier, Pierre-Yves Gumery, Timothe Flenet, Julie Fontecave-Jallon, Stephane Tanguy, Francois Boucher, Pierre Baconnier, Pierre-Yves Gumery, Pierre-Yves Gumery, Pierre Baconnier, Stephane Tanguy, Julie Fontecave-Jallon, Francois Boucher, Timothe Flenet
Cardiovascular monitoring is of great importance in pharmacology but there is a lack of convenient non-invasive alternatives. Hence, we aim to evaluate the relevance of inductive plethysmography (IP) in preclinical cardiac studies. An IP system was specifically designed for rat. Its evaluation carried out using a mechanical test bench has shown appropriate instrumental performances for cardiac monitoring in rats. Measurements were also performed during a volume overload hemodynamic challenge in vivo in rats...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227615/smart-monitoring-of-fluid-intake-and-bladder-voiding-using-pressure-sensitive-mats
#8
Madison Cohen-McFarlane, James R Green, Frank Knoefel, Rafik Goubran, Madison Cohen-McFarlane, James R Green, Frank Knoefel, Rafik Goubran, Frank Knoefel, Madison Cohen-McFarlane, Rafik Goubran, James R Green
Pressure sensitive mats have been used in noninvasive smart monitoring for a variety of problems including breathing rate monitoring, sleep monitoring, mobility, and weight. This paper describes a proof of concept application of pressure mats to monitor fluid intake/output (fluid cycle) events during the night. The ability to more accurately track such events has potential implications for monitoring those individuals who have nocturia, a condition where a person wakes at night to urinate. Data were collected from a healthy young female subject instructed to drink as much water as was comfortable (700mL) and lie in a supine position on a mattress located directly on three pressure mats...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227604/non-invasive-heart-rate-monitoring-system-using-giant-magneto-resistance-sensor
#9
Kubera Kalyan, Vinit Kumar Chugh, C S Anoop, Kubera Kalyan, Vinit Kumar Chugh, C S Anoop, Vinit Kumar Chugh, Kubera Kalyan, C S Anoop
A simple heart rate (HR) monitoring system designed and developed using the Giant Magneto-Resistance (GMR) sensor is presented in this paper. The GMR sensor is placed on the wrist of the human and it provides the magneto-plethysmographic signal. This signal is processed by the simple analog and digital instrumentation stages to render the heart rate indication. A prototype of the system has been built and test results on 26 volunteers have been reported. The error in HR estimation of the system is merely 1 beat per minute...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227601/photoacoustic-spectroscopy-that-uses-a-resonant-characteristic-of-a-microphone-for-in-vitro-measurements-of-glucose-concentration
#10
Joo Yong Sim, Chang-Geun Ahn, Eunju Jeong, Bong Kyu Kim, Joo Yong Sim, Chang-Geun Ahn, Eunju Jeong, Bong Kyu Kim, Bong Kyu Kim, Chang-Geun Ahn, Eunju Jeong, Joo Yong Sim
Glucose measurements using photoacoustic spectroscopy have been highlighted to be a modality for non-invasive glucose monitoring. Previous photoacoustic spectroscopy for glucose measurements have used a resonant acoustic cell with a broadband capacitive microphone to increase sensitivity. However, a resonant characteristic of a microphone has not been investigated yet due to the working frequency range much lower than the resonance frequency of the microphone membrane. We, here, present a photoacoustic spectroscopy system that utilizes an ultrasound resonance of a microphone to increase sensitivity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227580/non-invasive-bcg-monitoring-for-non-traditional-settings
#11
Esteban J Pino, Constanza Larsen, Javier Chavez, Pablo Aqueveque, Esteban J Pino, Constanza Larsen, Javier Chavez, Pablo Aqueveque, Javier Chavez, Constanza Larsen, Pablo Aqueveque, Esteban J Pino
This paper presents the results from actual measurements of cardiac activity acquired through the use of noninvasive sensors to detect Ballistocardiogram (BCG). The results show that it is feasible to unobtrusively monitor heart rate in non-standard settings such as waiting rooms or at school using simple chairs fitted with capacitive sensors. The selected sensors, based on electromechanical principles, are able to measure BCG from a variety of subjects. We present the results for 114 participants from homes, school and a hospital waiting room, adding up over 815 minutes of data...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227575/non-invasive-multi-modal-sensing-of-skin-stretch-and-bioimpedance-for-detecting-infiltration-during-intravenous-therapy
#12
Jambu A Jambulingam, Russell McCrory, Leanne West, Omer T Inan, Jambu A Jambulingam, Russell McCrory, Leanne West, Omer T Inan, Leanne West, Omer T Inan, Russell McCrory
Intravenous infiltration is a condition wherein an infused solution leaks inadvertently into soft tissue surrounding a hypodermic needle site. This occurrence affects approximately 6.5% of patients in hospitals worldwide, and can lead to severe tissue damage if not treated immediately. The methods currently used by medical staff to detect an infiltration are subjective and can potentially be prone to error. Infiltration is an even larger concern in pediatric patients, who have smaller veins than adults and have more difficulty in communicating pain or other discomfort associated with the infiltration with medical staff...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227449/comparison-of-methods-for-the-evaluation-of-nibp-from-pulse-transit-time
#13
L Peter, N Noury, M Cerny, I Nykl, L Peter, N Noury, M Cerny, I Nykl, L Peter, I Nykl, N Noury, M Cerny
Non-invasive blood pressure measurement (NIBP) is one of the most discussed topic in cardiovascular medicine. Currently continuous measurement of blood pressure is possible by invasive methods, which makes the measurement impractical for Doctors and uncomfortable for the patients. It is possible to use special devices to measure blood pressure noninvasively continuously but there are still some problems with long time monitoring and comfort for patient. Physiologically there is connection between electrical and mechanical heart functions, propagation of pulse wave and blood pressure value...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227447/non-invasive-monitoring-of-pulmonary-artery-pressure-at-the-bedside
#14
M Proenca, F Braun, E Muntane, J Sola, A Adler, M Lemay, J-Ph Thiran, S F Rimoldi, M Proenca, F Braun, E Muntane, J Sola, A Adler, M Lemay, J-Ph Thiran, S F Rimoldi, S F Rimoldi, E Muntane, J Sola, M Lemay, A Adler, J-Ph Thiran, F Braun
Current solutions for the monitoring of pulmonary artery pressure (PAP) in patients suffering from pulmonary hypertension are limited to invasive means. Non-invasive alternatives, such as Doppler echocardiography, are incompatible with continuous monitoring due to their dependency on qualified personnel to perform the measurements. In the present study, a novel non-invasive and unsupervised approach based on the use of electrical impedance tomography (EIT) is presented. The approach was evaluated in three healthy subjects undergoing hypoxia-induced variations in PAP...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227361/kinect2-respiratory-movement-detection-study
#15
Sandy Rihana, Elie Younes, Dimitris Visvikis, Hadi Fayad, Sandy Rihana, Elie Younes, Dimitris Visvikis, Hadi Fayad, Sandy Rihana, Elie Younes, Dimitris Visvikis, Hadi Fayad
Radiotherapy is one of the main cancer treatments. It consists in irradiating tumor cells to destroy them while sparing healthy tissue. The treatment is planned based on Computed Tomography (CT) and is delivered over fractions during several days. One of the main challenges is replacing patient in the same position every day to irradiate the tumor volume while sparing healthy tissues. Many patient positioning techniques are available. They are both invasive and not accurate performed using tattooed marker on the patient's skin aligned with a laser system calibrated in the treatment room or irradiating using X-ray...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227272/heart-rate-monitoring-from-wrist-type-ppg-based-on-singular-spectrum-analysis-with-motion-decision
#16
Yang Wang, Zhiwen Liu, Bin Dong, Yang Wang, Zhiwen Liu, Bin Dong, Yang Wang, Zhiwen Liu, Bin Dong
Heart rate (HR) monitoring is necessary for daily healthcare. Wrist-type photoplethsmography (PPG) is a convenient and non-invasive technique for HR monitoring. However, motion artifacts (MA) caused by subjects' movements can extremely interfere the results of HR monitoring. In this paper, we propose a high accuracy method using motion decision, singular spectrum analysis (SSA) and spectral peak searching for daily HR estimation. The proposed approach was evaluated on 8 subjects under a series of different motion states...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227209/high-speed-in-vivo-imaging-of-retinal-hemodynamics-in-a-rodent-model-of-hypertension
#17
Mahdieh Rezaeian, Dana Georgevsky, S Mojtaba Golzan, Stuart L Graham, Mahdieh Rezaeian, Dana Georgevsky, S Mojtaba Golzan, Stuart L Graham, Dana Georgevsky, Mahdieh Rezaeian, S Mojtaba Golzan, Stuart L Graham
The eye is the only organ through which microcirculation can be visualized non-invasively. This unique feature makes the eye and specifically retinal vasculature an excellent target area to monitor and study micro-vascular damage in systemic diseases. Dynamic (real-time) changes of retinal vessels have been shown to be more specific to the disease in comparison with static measurements. In this study we utilize high speed imaging (i.e. 125 fps) to study and derive dynamic changes of retinal vessels in a rat model of hypertension...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227205/low-frequency-ultrasound-radiosensitization-and-therapy-response-monitoring-of-tumors-an-in-vivo-study
#18
Ali Sadeghi-Naini, Martin Stanisz, Hadi Tadayyon, Jaswinder Taank, Gregory J Czarnota, Ali Sadeghi-Naini, Martin Stanisz, Hadi Tadayyon, Jaswinder Taank, Gregory J Czarnota, Jaswinder Taank, Hadi Tadayyon, Martin Stanisz, Ali Sadeghi-Naini, Gregory J Czarnota
A new framework has been introduced in this paper for tumor radiosensitization and therapy response monitoring using low-frequency ultrasound. Human fibrosarcoma xenografts grown in severe combined immunodeficiency (SCID) mice (n = 108) were treated using ultrasound-stimulated microbubbles at various concentration and exposed to different doses of radiation. Low-frequency ultrasound radiofrequency (RF) data were acquired from tumors prior to and at different times after treatment. Quantitative ultrasound (QUS) techniques were applied to generate spectral parametric maps of tumors...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227128/boundary-element-simulation-of-ultrasonic-backscattering-during-the-fracture-healing-process
#19
Vassiliki T Potsika, Konstantinos N Grivas, Theodoras Gortsas, Vasilios C Protopappas, Demosthenes K Polyzos, Dimitrios I Fotiadis, Vassiliki T Potsika, Konstantinos N Grivas, Theodoras Gortsas, Vasilios C Protopappas, Demosthenes K Polyzos, Dimitrios I Fotiadis, Dimitrios I Fotiadis, Theodoros Gortsas, Vasilios C Protopappas, Vassiliki T Potsika, Konstantinos N Grivas, Demosthenes K Polyzos
Competent fracture healing monitoring and treatment requires an extensive knowledge of bone biology and microstructure. The use of non-invasive and non-radiating means for the monitoring of the bone healing process has gained significant interest in recent years. Ultrasound is considered as a modality which can contribute to the assessment of bone status during the healing process, as well as, enhance the rate of the tissues' ossification. This work presents boundary element simulations of ultrasound propagation in healing long bones to investigate the monitoring potential of backscattering parameters...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226918/gyrocardiography-a-new-non-invasive-approach-in-the-study-of-mechanical-motions-of-the-heart-concept-method-and-initial-observations
#20
Mojtaba Jafari Tadi, Eero Lehtonen, Mikko Pankaala, Antti Saraste, Tuija Vasankari, Mika Teras, Tero Koivisto, Mojtaba Jafari Tadi, Eero Lehtonen, Mikko Pankaala, Antti Saraste, Tuija Vasankari, Mika Teras, Tero Koivisto, Eero Lehtonen, Mojtaba Jafari Tadi, Mika Teras, Antti Saraste, Tuija Vasankari, Mikko Pankaala, Tero Koivisto
The pumping action of the heart is performed by contraction of the myocardium fibers. We present a non-invasive technique named gyrocardiography (GCG) that comprises a sensor of angular motion, gyroscope, configured to obtain three-dimensional angular velocity signals. A tri-axial micro electromechanical (MEMS) gyroscope sensor was attached to the surface of the chest to obtain gyrocardiogram. Color-coded Doppler tissue imaging (DTI) was recorded simultaneously and synchronized with the GCG in an off-line analysis...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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