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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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Automatic detection and identification of cardiac sounds and murmursBaranek, Humberto Leon January 1987 (has links)
No description available.
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Automated pediatric cardiac auscultation /De Vos, Jacques Pinard. January 2005 (has links)
Thesis (MScIng)--University of Stellenbosch, 2005. / Bibliography. Also available via the Internet.
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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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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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Automated pediatric cardiac auscultationDe Vos, Jacques Pinard 03 1900 (has links)
Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2005. / Most of the relevant and severe congenital cardiac malfunctions can be recognized
in the neonatal period of a child’s life. The delayed recognition of a congenital heart
defect may have a serious impact on the long-term outcome of the affected child.
Experienced cardiologists can usually evaluate heart murmurs with a high sensitivity
and specificity, although non-specialists, with less clinical experience, may have
more difficulty. Although primary care physicians frequently encounter children
with heart murmurs most of these murmurs are innocent.
The aim of this project is to design an automated algorithm that can assist the primary
care physician in screening and diagnosing pediatric patients with possible
cardiac malfunctions. Although attempts have been made to automate screening by
auscultation, no device is currently available to fulfill this function. Multiple indicators
of pathology are nonetheless available from heart sounds and were elicited
using several signal processing techniques. The three feature extraction algorithms
(FEA’s) developed respectively made use of a Direct Ratio technique, a Wavelet
analysis technique and a Knowledge based neural network technique. Several implementations
of each technique are evaluated to identify the best performer. To
test the performance of the various algorithms, the clinical auscultation sounds and
ECG-data of 163 patients, aged between 2 months and 16 years, were digitized.
Results presented show that the De-noised Jack-Knife neural network can classify 163
recordings with a sensitivity and specificity of 92 % and 92.9 % respectively. This
study concludes that, in certain conditions, the developed automated auscultation
algorithms show significant potential in their use as an alternative evaluation technique
for the classification of heart sounds in normal (innocent) and pathological
classes.
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Avaliação dos motivos de referenciamento ao ambulatório de cardiologia pediátrica da Policlínica Municipal de Sorocaba pela atenção primária: criação de proposta de interação educacional em serviçoGuevara, Virna Maria 29 October 2014 (has links)
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Previous issue date: 2014-10-29 / Introduction- The prevalence of congenital cardiovascular disease is of 7 to 10
children in every 1000 live births. The reasons that lead to the referral of a child by
primary care physicians are very varied, with cardiac heart murmur being the most
common. Amongst other reasons one can find precordial pain, arrhythmia, fatigue,
dyspnea, cyanosis, abnormal chest x-ray, abnormal electrocardiogram, medical
examination for physical exercise. The present challenge for pediatricians, family
physicians and pediatric cardiologists is to develop accurate diagnosis strategies in a
cost-effective manner, with the aim of improving the treatment and save resources.
Objectives- The objective is to strengthen the network of health care in its primary
and secondary levels using cases of Pediatric Cardiology as the strategic condition
and develop an interdisciplinary work proposal with the support of a matrix, which
optimize the referral system. Material and methods- It is about the exploratory study
with descriptive documental analysis from 433 referral letters of patients seen at the
Pediatric Cardiology Ambulatory of Policlinic of Sorocaba from January to June 2012,
along with the study of the patients medical records. The data collected is quantified
using descriptive statistics when relevant. Results- One hundred and sixty-six
patients (38,3%) were discharged, 93 with feedback letter of referral (56,0%). Ninetysix
(22,2%) missing follow up, 9 of which had confirmed cardiovascular disease, 29
with absence of cardiovascular disease and 58 without a definitive diagnosis of
cardiovascular disease. One hundred and seventy-one patients (39,5%) attend
follow-ups. Conclusion- With the aim of strengthening the network of health care
using recent medical advances, such as telemedicine and the concept of matrix
support, as means of exchange, improvement and to save resources and knowledge / Introdução - A prevalência das cardiopatias congênitas está entre sete a dez
crianças por 1000 nascidas vivas. Os motivos que levam o médico da atenção
primária a encaminhar uma criança ao cardiologista pediátrico são bastante
variados, sendo o sopro cardíaco a causa mais frequente. Dentre outros motivos
frequentes encontram-se dor precordial, arritmias, cansaço, dispneia, cianose,
radiografia de tórax anormal, eletrocardiograma alterado, avaliação para atividade
física. O desafio atual dos pediatras, médicos de família e cardiopediatras é
desenvolver estratégias de diagnósticos precisos e financeiramente adequados, com
o intuito de melhorar o tratamento e racionalizar os recursos. Objetivos - O objetivo
é fortalecer a rede de atenção à saúde em seus níveis primário e secundário,
utilizando-se dos casos de Cardiologia Pediátrica como condição estratégica e
desenvolver uma proposta de trabalho interdisciplinar e de interação com apoio
matricial, otimizando o sistema de referência e contrarreferência. Material e método
- Trata-se de estudo exploratório com análise documental descritiva das 433 guias
de referenciamento de pacientes atendidos no ambulatório de Cardiologia Pediátrica
da Policlínica Municipal de Sorocaba, no período de janeiro a junho de 2012,
acompanhado do estudo dos prontuários. Os dados obtidos foram quantificados e
utilizada a estatística descritiva quando pertinente. Resultados - Cento e sessenta e
seis pacientes (38,3%) tiveram alta, 93 com contrarreferência (56,0%) preenchida.
Noventa e seis pacientes (22,2%) perderam o seguimento, sendo nove com doença
cardiovascular presente, 29 com doença cardiovascular ausente e 58 sem
diagnóstico definitivo de doença cardiovascular. Cento e setenta e um pacientes
(39,5%) pacientes mantêm seguimento. Conclusão A fim de se fortalecer a rede
de atenção à saúde, a utilização de recentes avanços, como a telemedicina e o
conceito de apoio matricial se colocam como meios de troca, otimização e
racionalização do conhecimento e dos recursos
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