Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 35 for “"Pulse Oximetry"”.
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Newborn Pulse Oximetry Screening
… feasible for New Zealand to introduce nationwide pulse oximetry screening for the detection of these anomalies in newborns. Data from national databases were merged to compile a dataset of infants and fetuses with critical cardiac disease in New Zealand between 2006 and 2015, which was …
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Wearable Pulse Oximetry in Construction Environments
… workers for carbon monoxide exposure via pulse oximetry. In particular, this study sought to understand the impact of motion artifacts caused by the worker's activities and to determine if those activities would prevent the blood gas sensor from detecting the onset of carbon monoxide …
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An analog VLSI front end for pulse oximetry
Pulse oximetry is a fast, noninvasive, easy-to-use, and continuous method for monitoring the oxygen saturation of a patient's blood. In modem medical practice, blood oxygen level is considered one of the important vital signs of the body. The pulse oximeter system consists of an optoelectronic …
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An investigation of remote non-contact photoplethysmography and pulse oximetry
… presents an investigation of non-contact remote pulse oximetry and photoplethysmography. A thorough description is given of the technique of pulse oximetry along with some physiological effects and some characteristics of light-tissue interaction that underlie pulse oximetry. A device is then …
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Signal Quality Analysis in Pulse Oximetry: Modelling and Detection of Motion Artifact
Pulse oximetry is a non-invasive technique for measuring the amount of oxygen in a patient's blood (SpO2). It is considered standard of care in the hospital for monitoring cardio-respiratory function. While it has potential uses in ambulatory or wearable applications, pulse oximetry is susceptible …
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Early-Stage Research and Design of a Diagnostic Sensor for Peripheral Vascular Disease
… blood pressure measurements. Additionally, pulse oximetry is identified as a possible solution that would provide the fastest test time and greatest ease of use. Given the research done in this project, the recommendation for continuation is to pursue both potential solutions, but with an …
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A COMPARATIVE STUDY OF TOTAL HEMOGLOBIN MEASUREMENT TECHNOLOGY: NONINVASIVE PULSE CO-OXIMETRY AND CONVENTIONAL METHODS
… different principles of operation. Noninvasive pulse CO-oximetry represents the latest development in hemoglobin measuring technology. The technology uses principles similar to pulse oximetry to measure total hemoglobin, oxyhemoglobin, reduced oxyhemoglobin, carboxyhemoglobin and methemoglobin. …
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Investigation of splanchnic perfusion utilising an intraluminal opto-electronic sensor placed in the duodenum
… to the surgical site, monitoring of duodenal pulse oximetry signals could not be done in a continuous way. Also, the presence of moderate respiratory modulation in otherwise good quality, high amplitude signals seemed to result in an underestimation of arterial blood saturation of 2%. A …
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Impact of a Two Component Intervention on Aspiration Rate among Stroke Patients
… were 63% of nurses that agreed to try using pulse oximetry while conducting the bedside swallow. Additionally, there were 76% of nurses agreed to have more training on this topic.</p> <p><strong>Results:</strong> The results included 100% of the participants indicating that the teaching …
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The development of biomedical instrumentation using backscattered laser light
… the techniques of laser Doppler flowmetry and pulse oximetry. An investigation of the responses of Doppler flowmeters using different signal processing bandwidths and laser sources revealed two major findings. Firstly, that careful choice of processing bandwidth is required in order to sample …
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Reflectance photoplethysmography for non-invasive monitoring of tissue perfusion
… and it is well known for its utilisation in pulse oximetry for the estimation of arterial blood oxygen saturation (SpO2). In pulse oximetry, mainly the pulsatile component of the signal (AC PPG) is used while the continuous DC component is mostly excluded. Near Infrared Spectroscopy (NIRS) is …
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Derivation and validation of a severity scoring tool for COVID-19 illness in low-resource setting
… and systolic blood pressure; in settings with pulse oximetry, oxygen saturation is included and, in settings without access, heart rate is included. The AFEM-CMS showed good discrimination: The model including pulse oximetry had a C-statistic of 0.775 (95% CI: 0.737-0.813) and the model …
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Validation of a severity scoring tool for Covid-19 illness in Sudan
… pressure, respiratory rate, heart rate, and pulse oximetry). The AFEM-CMS was validated using C-index measurements (area under the receiver operator curve (AUROC)) in the validation dataset. All analyses were performed in R (version 4.1.0, © The R Foundation) with the dplyr, finalfit, glmnet, …
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Deciphering Emotional Responses to Music: A Fusion of Psychophysiological Data Analysis and Bi-LSTM Predictive Modeling
… sessions, Electrodermal Activity (EDA) and Pulse Oximetry (POX) readings were collected, complemented by qualitative feedback from the participants. Our analysis focused on detecting recurring patterns and extracting meaningful insights from the data. In addition to this, we compare several …
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Impact of secondary insults on the outcome of paediatric traumatic brain injury : a retrospective cross sectional study at the Red Cross Children’s Hospital, Cape Town
… pressure of oxygen (PaO2) less than 8kPa or pulse oximetry less than 90%. We examined for univariate and multivariate associations with mortality and the Extended Paediatric Glasgow Outcome Score.
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Photoplethysmorgraph-derived respiration
… are compared with that of off-the-shelf Nonin pulse oximetry module -- Xpod. The custom hardware PPG signal was affected more significantly by motion artifact than the Xpod hardware output. Discrepancies in detecting 6 breaths per minute using custom PPG signal were noted. In conclusion, a few …
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Health technology assessment in maternal and perinatal medicine: delphi survey of practice, systematic reviews of evidence and meta analyses
… respectively for detecting CHD in the newborn by pulse oximetry. Conclusion Through the HTA of tests and treatment in priority areas of maternal and perinatal medicine, the thesis has led to the generation of clinical recommendation where there was clear evidence of benefit and for further …
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Cardiorespiratory abnormalities in early and advances stage mouse models of Duchenne muscular dystrophy
… fibrosis). Using wholebody plethysmography and pulse oximetry, we assessed respiratory function and blood oxygen saturation (SaO2). At 12 months of age, Dmdmdx4cv mice exhibited significantly lower respiratory frequency and oxygen consumption. However, ventilation (Ve) and ventilatory equivalent …
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The design, development, and validation of an accessible high flow nasal oxygen solution with patient scoring outputs
… capture of 3 to 90 breaths per minute, and the pulse oximetry data connectivity to the system. The maximum error in oxygen flow rates greater than 30 l/min was - 5.69 l/min for 30% FiO2. Maximum errors of +3.2% FiO2 were shown for flow rates less than 15 l/min and greater than 30 l/min. The …
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Measurement of Cerebral Metabolism and Vascular Function with Magnetic Resonance Imaging
… an excellent agreement with the gold standard Pulse Oximetry method. A final technical study was to improve the speed and reliability of TRUST MRI by shortening the scan duration by 60% while reducing the measuring error by half. I have also applied this novel CMRO2 method in better …
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