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Phonocardiogram segmentationLin, Tang Chu January 2005 (has links)
Thesis (M.S.)--University of Hawaii at Manoa, 2005. / Includes bibliographical references (leaves 126-128). / xii, 128 leaves, bound ill. (some col.) 29 cm
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Time-frequency characterisation of paediatric heart soundsLeung, Terence Sze-tat January 1998 (has links)
No description available.
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Analysis and representation of heart sounds and murmursCorona, Blanca Tovar January 1999 (has links)
No description available.
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Acquisition and analysis of heart sound dataHebden, John Edward January 1997 (has links)
No description available.
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Automatic detection and identification of cardiac sounds and murmursBaranek, Humberto Leon January 1987 (has links)
No description available.
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The diagnostic value of auscultation and phonocardiography in pulmonary stenosis and Fallot's tetralogy: their use in differential diagnosis, assessment of severity, prediction of the postoperative result and physiological studiesVogelpoel, Louis January 1959 (has links)
With supplement of 8 reprints .
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Automatic detection and identification of cardiac sounds and murmursBaranek, Humberto Leon January 1987 (has links)
No description available.
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An Algorithm for the Automated Interpretation of Cardiac AuscultationUnknown Date (has links)
Cardiac auscultation, an important part of the physical examination, is difficult for
many primary care providers. As a result, diagnoses are missed or auscultatory signs
misinterpreted. A reliable, automated means of interpreting cardiac auscultation should
be of benefit to both the primary care provider and to patients. This paper explores a
novel approach to this problem and develops an algorithm that can be expanded to
include all the necessary electronics and programming to develop such a device. The
algorithm is explained and its shortcomings exposed. The potential for further
development is also expounded. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2016. / FAU Electronic Theses and Dissertations Collection
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Investigation and assessment of ejection murmurs and the left ventricular outflow tract in Boxer dogsKoplitz, Shianne L. January 2005 (has links)
Thesis (Ph. D.)--Ohio State University, 2005. / Available online via OhioLINK's ETD Center; full text release delayed at author's request until 2006 Aug 15.
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Ανάπτυξη καρδιογραφικού συστήματος βασισμένο στον MSP430F169Σαμαράς, Κωνσταντίνος 11 January 2011 (has links)
Αρχικά εξετάζεται η φυσιολογία της καρδιάς και η λειτουργία της ως αντλίας, οι διάφορες φάσεις του καρδιακού κύκλου και τα αίτια των φαινομένων που παρατηρούνται σε αυτόν. Στη συνέχεια μελετώνται οι καρδιακοί ήχοι, η προέλευσή τους και μέθοδοι παρατήρησής τους, το ηλεκτροκαρδιογράφημα, τα χαρακτηριστικά του και οι εφαρμογές του. Ακολούθως εξετάζεται η δειγματοληψία, επεξεργασία και ανάλυση βιολογικών σημάτων. Πιο συγκεκριμένα, μελετώνται οι μέθοδοι και οι αλγόριθμοι με τους οποίους λαμβάνονται τα ηλεκτροκαρδιογραφικά και φωνοκαρδιογραφικά σήματα, απομακρύνεται ο θόρυβος που προστίθεται από διάφορες πηγές και ανιχνεύονται συγκεκριμένα χαρακτηριστικά των κυματομορφών των σημάτων και ιδιότητές τους, για να αναλυθούν και να γίνει διάγνωση δυσλειτουργιών και παθολογιών της καρδιάς. Τέλος, αναπτύσσεται κώδικας συνεχούς δειγματοληψίας τεσσάρων καναλιών και καταγραφής των δεδομένων δειγματοληψίας σε μια κάρτα μνήμης πολυμέσων, προγραμματίζοντας τον μικροεπεξεργαστή MSP430F169 της Texas Instruments. / In the first part, the physiology of the heart and its functionality as a pump are studied, considering the different phases of a heart cycle and the phenomena observed within. Furthermore, heart sounds, their origin and methods of detection are examined, alongwith the electrocardiogram, its characteristics and applications. Secondly, sampling, processing and analysing methods of biosignals are described. In particular,techniques for ECG and PCG signal acquisition, noise reduction and detection of unique properties and characteristics are studied for analysis and diagnosis of heart disorders and pathologies. Finally, a code for continuous sampling of four channels and storing the sampled data into a multimedia memory card is developed, programming the MSP430F169 microcontroller, by Texas Instruments.
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