Dissertations / Theses on the topic 'Peripheral pulse'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 17 dissertations / theses for your research on the topic 'Peripheral pulse.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Camacho, Fernando Graduate School of Biomedical Engineering Faculty of Engineering UNSW. "Statistical analysis of central aortic blood pressure parameters derived from the peripheral pulse." Awarded by:University of New South Wales. Graduate School of Biomedical Engineering, 2006. http://handle.unsw.edu.au/1959.4/26215.
Full textEpstein, Sally Laura Tessier Banfill. "Assessment of cardiovascular biomarkers derived from peripheral pulse waveforms using computational blood flow modelling." Thesis, King's College London (University of London), 2017. https://kclpure.kcl.ac.uk/portal/en/theses/assessment-of-cardiovascular-biomarkers-derived-from-peripheral-pulse-waveforms-using-computational-blood-flow-modelling(ae3444f1-1504-4bae-bdd9-b3e6a5c7324f).html.
Full textInsall, R. L. "Pulse waveforms and transit time from photoelectric plethysmography in the diagnosis of peripheral vascular disease." Thesis, University of Newcastle Upon Tyne, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309069.
Full textRachamadugu, Arun. "Digital implementation of high speed pulse shaping filters and address based serial peripheral interface design." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26603.
Full textCommittee Chair: Laskar, Joy; Committee Member: Anderson, David; Committee Member: Cressler, John. Part of the SMARTech Electronic Thesis and Dissertation Collection.
McCombie, Devin Barnett 1972. "Development of a wearable blood pressure monitor using adaptive calibration of peripheral pulse transit time measurements." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45335.
Full textIncludes bibliographical references (p. 157-159).
The ability to continuously monitor a patient's blood pressure long-term (for hours, days, or weeks) using a wearable device as unobtrusive as a wristwatch or piece of jewelry, could revolutionize the study, diagnosis, and treatment of hypertension, heart failure, and other cardiovascular disorders. Today's familiar blood pressure cuffs are used to diagnose and manage the hypertensive disorders which afflict 65 million Americans. But these existing devices only permit single 'snap-shot' measurements, while true arterial blood pressure fluctuates minute-by-minute, from night-to-day, etc. There is ample evidence that more intense blood pressure monitoring offers better clinical information. Moreover, the existing blood pressure devices are a chore: they are obtrusive, finicky, and uncomfortable. This thesis presents the design and development of a novel non-invasive BP monitor. The device provides beat-by-beat mean arterial blood pressure (MAP) estimates using adaptive calibration of the measured transit time of a propagating arterial pressure wave. The device employs unique wearable sensor architecture to estimate peripheral pulse transit time measurements. This architecture is comprised of two in-line photoplethysmograph sensors one in the form of a wristwatch measuring the volumetric pulsation in the ulnar artery and one in the form of a ring measuring the volumetric pulsation of the digital artery at the base of the little finger. Use of this architecture eliminates problems associated with the traditional method of estimating pulse transit time using the electrocardiogram (EKG).
(cont.) Additionally, by co-locating the two sensors on the same appendage not only are we able to account for the effect of hydrostatic pressure variation in our pulse transit time (PTT) measurements using an imbedded height sensor, but by actively altering the height of the two sensors relative to the heart we can achieve real-time identification of the calibration equation mapping PTT to MAP. Such real-time calibration of PTT measurements obviates the need for obtrusive cuff-based blood pressure monitors and offers the potential to recursively update the calibration equation as the patient's cardiovascular state evolves throughout the duration of the measurement period. Adaptive PTT calibration through natural patient motion has never previously been explored and offers the potential to achieve the longstanding goal of a truly imperceptible, wearable home BP monitor. This thesis describes the design and development of the sensor hardware used in the wearable device. Based on both theoretical study and experimental observations a device model has been developed to allow estimation of mean arterial blood pressure using the pulse transit times measured with our sensors. Additionally, this thesis presents the adaptive calibration methodology and the novel system identification algorithms that were used to parameterize our device model using natural human motion. Finally, this thesis demonstrates the potential of these innovative concepts through human subject testing and data analysis.
by Devin Barnett McCombie.
Ph.D.
Dženkevičiūtė, Vilma. "Peculiarities of structural and functional changes of central and peripheral arteries in metabolic syndrome." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20111003_114713-40821.
Full textCardiovascular diseases (CVD) are the main cause of death all over the Europe and were the most prevalent disease in Lithuania in 2010. Based on some of the data, MS risk factors have different influence on changes of artery structure and function. MS and its components can influence differently the emergence of cardiovascular diseases and advance of complications in men and women. Furthermore, we tried to estimate the number of separate components constituting MS that can have the most significant influence on functional and structural changes in cardiovascular arteries and increase of the left ventricle myocardial mass index. The particularity of changes in different arterial stiffness indicators in patients with MS has not been determined yet in the literature, as well as prognostic value of MS when initiating early disorders in arterial structure and function and left ventricular hypertrophy. The research showed the following results: in subjects with metabolic syndrome irrespectively their gender and age higher intima-media thickness, femoral-carotid arteries pulse wave velocity and left ventricular myocardial mass index were found. However, higher number of atherosclerotic plaques in carotid artery was found only in females. Risk of cardiovascular disorders in males and females with metabolic syndrome is different. Nor in males, neither in females metabolic syndrome had no direct influence on pulse wave velocity, intima-media thickness, hypertrophy of left ventricle... [toliau žr. visą tekstą]
Kobayashi, Katsuya. "Different Mode of Afferents Determines the Frequency Range of High Frequency Activities in the Human Brain: Direct Electrocorticographic Comparison between Peripheral Nerve and Direct Cortical Stimulation." Kyoto University, 2015. http://hdl.handle.net/2433/202676.
Full textLi, Lulu [Verfasser]. "Measuring fluid shear stress with a novel Doppler-derived relative pulse slope index and maximal systolic acceleration approach to detect peripheral arterial disease and to modulate arteriogenesis / Lulu Li." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2017. http://d-nb.info/113307426X/34.
Full textMercadal, Cavaller Borja. "Electroporation and peripheral nerve stimulation." Doctoral thesis, Universitat Pompeu Fabra, 2019. http://hdl.handle.net/10803/667854.
Full textAquesta tesi té com a objectiu resoldre qüestions en els camps de l’electroporació i l’estimulació dels nervis perifèrics, i sobretot, aquelles que es deriven de l’interacció entre els dos fenòmens. L’electroporació pot tenir diversos efectes directes o indirectes en les funcions neuronals. En aquesta tesi s’investiga el possible paper de l’electroporació en els tractaments de radiofreqüència polsada. D’altra banda, durant els tractaments basats en l’electroporació, l’estimulació elèctrica dels nervis perifèrics apareix com a efecte secundari causant contraccions musculars i dolor. En aquesta tesi s’analitza com l’ús de polsos bipolar pot mitigar aquests efectes i quines implicacions té aquesta estratègia en els tractaments d’electroporació irreversible. En aquesta tesi també es presenta un marc teòric per explicar una sèrie de resultats que entren en aparent contradicció amb els nostres coneixements sobre l’electroporació. Finalment, es presenta un model neuromuscular que permet estudiar la resposta d’un múscul quan és estimulat mitjançant elèctrodes intramusculars.
Christoph, Marian, Jörg Herold, Anna Berg-Holldack, Thomas Rauwolf, Tjalf Ziemssen, Alexander Schmeisser, Sönke Weinert, et al. "Effects of the Peroxisome Proliferator-Activated Receptor-γ Agonist Pioglitazone on Peripheral Vessel Function and Clinical Parameters in Nondiabetic Patients: A Double-Center, Randomized Controlled Pilot Trial." Karger, 2015. https://tud.qucosa.de/id/qucosa%3A70586.
Full textFadaie-Tehrani, Alireza. "Pulsed voltage in peripheral electrochemical grinding and a study of some process parameters." Thesis, University of Manchester, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488338.
Full textWang, Tianshu. "Low-intensity pulsed ultrasound prompts both functional and histologic improvements while upregulating the brain-derived neurotrophic factor expression after sciatic crush injury in rats." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/265198.
Full text新制・課程博士
博士(人間健康科学)
甲第23426号
人健博第93号
新制||人健||6(附属図書館)
京都大学大学院医学研究科人間健康科学系専攻
(主査)教授 山田 重人, 教授 林 悠, 教授 森本 尚樹
学位規則第4条第1項該当
Doctor of Human Health Sciences
Kyoto University
DFAM
Crisci, Ana Rosa. "Estudo experimental dos efeitos do ultra-som pulsado de baixa intensidade sobre a regeneração do nervo ciático de ratos após neurotomia, mediante avaliações morfológicas e morfométricas." Universidade de São Paulo, 2001. http://www.teses.usp.br/teses/disponiveis/82/82131/tde-30082001-161012/.
Full textThe biophysical qualities of pulsed ultrasound led us to appraise it¢s effect on the regeneration of a peripheral nerve. In this study our intention was to evaluate the effects of pulsed ultrasound on the axotomy of the ciatic nerve in rats. The proximal stump of the nerve was stimulated on 12 consecutive days with pulsed ultrasound and the effects of the sonication were evaluated through morphologic and morphometric techniques. Our findings suggest that sonication leads to a rapid regeneration of the nerve after axotomization. These affirmations are based on the counting of different types of fibre components in mixed nerves and the morphologic recovery of the same in comparasion with nerves of animals submitted to sham operation.
FAN, ZHI-XIANG, and 范智翔. "Physiological Signal Analysis of Peripheral Arteries by Pulse Wave Characteristics." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/70970454543295251842.
Full text中原大學
電機工程研究所
103
Heart rate variability (HRV) can be applied to observe the autonomic nervous system activity of human beings. With the development of wearable device technology, the PPG signal is often applied to measure pulse rate and furthermore to analyze the pulse rate variability (PRV), considered to be equivalent to HRV. However, the heart rate is affected by depth and speed of breath that causes different results when HRV and PRV are measured on different locations. Based on the characteristics of the respiratory sinus arrthymia (RSA), the beat rate and tide volume of breath were controlled and the variability of PPG and ECG signals were discussed; furthermore, the characteristics of peripheral arteries were evaluated. Several PSG applied were respiration rate measured with sitting position, and ECG signals and PPG variability of four limbs to analyze the SDNN of normal to normal beat. It was found that obvious difference ( p <0.05) shown between HRV and PRV when normal young groups were controlling different beat rate and tide volume; however, no obvious ones shown on the PRV of four limbs. To analyze based on age, obvious difference between upper limbs and lower ones was shown on the PTT of young group instead of the elderly. Therefore, the result showed there are difference between PRV and HRV during breath.
Hu, Chung-Chieh, and 胡中傑. "Applications of ankle-brachial index and pulse wave velocity in patients without clinical peripheral vascular disease." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/54496404121743571576.
Full text東海大學
工業工程與經營資訊學系
101
Cardiovascular disease is a major and important board spectrum disease in Taiwan, that its total death rate exceed the one of cancer in recent years. Peripheral vascular disease is one kind of cardiovascular disease, which share the same risk factors generally. For those healthy persons who do not have clinical evidence of peripheral aterial disease, we are interested in (1) To understand the disease prevalence by measuring ankle-brachial index and pulse wave velocity (2) The relationship between these markers and risk factors of cardiovascular disease (3) The relationship between different cardiovascular outcomes and Framingham risk scoring system, and (4) The predictive value of these markers to other cardiovascular outcomes. Method: This is a cross-sectional study. From February 2008 to April 2013, we collected totally 2085 of ABI and PWV measurements at health check-up center of one Medical Center in central Taiwan. We studied the relationships between ABI, PWV and other parameters such as: demographic datas, general laboratories profile, results of MDCT, carotid songraphy and transcranial doppler.. We concluded that (1) In our study, the prevalence of peripheral artery disease related to other cardiovascular diseases is similar to previous reported, and has been summarized in the tables of Chi-square test and Mann-Whitney U test in this report, (2) Most of the traditional cardiovascular risk factors were significantly related to PWV, but not to ABI, (3) When PWV ≥ 1400cm/s, odds ratio for coronary artery disease, metabolic syndrome, carotid intima thickening, and mild carotid stenosis were 2.49, 2.97, 3.55 and 4.11 respectivetly. For a 10% 10-year risk of Framingham score, the odds ratio of PWV ≥1400 cm/s were 5.2 for men and 14.0 for women, and (4) The area under the curve under the receiver operator curve were 0.689 for coronary artery disease, 0.676 for metabolic syndrome, 0.699 for carotid intima thickening and mild stenosis with different PWV cut-off value, and corresponding 0.601, 0.613, 0.609 and 0.577 with ABI.
Araújo, Tiago Sérgio Santos Rodrigues. "Modulation of electrical stimulation applied to human physiology and clinical diagnostic." Doctoral thesis, 2015. http://hdl.handle.net/10362/15243.
Full textFundação para a Ciência e Tecnologia (FCT); PLUX - Wireless Biosignals, S.A.; FCT-UNL- CEFITEC
"The effects of pulsed electromagnetic field on peripheral nerve regeneration." Chinese University of Hong Kong, 1990. http://library.cuhk.edu.hk/record=b5886629.
Full textThesis (M.Phil.)--Chinese University of Hong Kong, 1990.
Bibliography: leaves 137-146.
Chapter CHAPTER ONE --- Introduction --- p.1
Chapter 1.1 --- Surgical intervention done for nerve injury --- p.1
Chapter 1.2 --- Rehabilitation procedures after nerve injuries --- p.2
Chapter 1.3 --- Frustrating result of recovery after nerve injuries --- p.3
Chapter 1.4 --- Reasons for the poor results --- p.3
Chapter 1.5 --- Objective of the study --- p.5
Chapter 1.6 --- Hypothesis and organization of the study --- p.6
Chapter CHAPTER TWO --- The effects of pulsed electromagnetic field on peripheral nerve regeneration --- p.8
Chapter 2.1 --- Electrical field and nerve growth --- p.8
Chapter 2.2 --- Experimental findings of effect of the electromagnetic field on peripheral nerve regeneration --- p.9
Chapter 2.3 --- The diversity of interest --- p.17
Chapter CHAPTER THREE --- Physiological effects of the pulsed electromagnetic field --- p.18
Chapter 3.1 --- The conventional use of electromagnetic field in musculoskeletal rehabilitation --- p.18
Chapter 3.2 --- The pulsed electromagnetic field --- p.18
Chapter 3.3 --- Nature of the pulsed electromagnetic field with a carrier frequency of 27.12 MHz --- p.19
Chapter 3.4 --- Therapeutic effects of the pulsed electromagnetic field --- p.20
Chapter 3.5 --- Some experimental results of the pulsed electromagnetic field --- p.20
Chapter 3.6 --- Discussion --- p.25
Chapter CHAPTER FOUR --- Methology --- p.27
Chapter 4.1 --- Experimental animals and aneasthesia --- p.27
Chapter 4.2 --- Models of lesions --- p.28
Chapter 4.3 --- Sample size and grouping of the experimental rats --- p.35
Chapter 4.4 --- Pulsed electromagnetic field stimulation --- p.37
Chapter 4.5 --- Methods of evaluating the nerve regeneration --- p.38
Chapter 4.6 --- Statistical analysis --- p.53
Chapter CHAPTER FIVE --- Results --- p.54
Chapter 5.1 --- Directly repaired groups --- p.54
Chapter 5.2 --- Crushed groups --- p.62
Chapter 5.3 --- Artery bridge groups --- p.73
Chapter 5.4 --- Sham operated groups --- p.84
Chapter 5.5 --- Electron microscopic examination --- p.90
Chapter 5.6 --- Summary of all the data --- p.94
Chapter CHAPTER SIX --- Discuss ion --- p.96
Chapter CHAPTER SEVEN --- Conclusion --- p.103
Chapter 7.1 --- Restatement of the experimental objective and hypothesis --- p.103
Chapter 7.2 --- Conclusion --- p.103
Chapter 7.3 --- Suggestions for furthur research --- p.104
Chapter 7.4 --- Clinical Implication --- p.105
Chapter APPENDIX I --- Determination of the duration of survival of the experimental animal --- p.106
Chapter APPENDIX II --- Perfusion of rats --- p.115
Chapter APPENDIX III --- Horseradish peroxidase and tetramethvlbezindine reaction --- p.118
Chapter APPENDIX IV --- Histology fixation --- p.120
Chapter APPENDIX V --- Determination of the Position of the Histology Specimens --- p.121
Chapter APPENDIX VI --- Raw Data Collected in the Experiment --- p.132
REFERENCE --- p.137