Phono-spectrographic analysis of heart murmur in children

Noponen, A.-L.; Lukkarinen, S.; Angerla, A.; Sepponen, Raimo

doi:10.1186/1471-2431-7-23

Cited by 60 publications

(33 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Accordingly, the PZT sensor system can be used as a backup cardiorespiratory monitor for a more secure monitor system, or as a main cardiorespiratory monitor for a healthier infant who does not necessarily require full ECG information. Furthermore, the system may serve well as an advanced diagnostic tool for cardiac diseases because it utilizes the PZT system and analyzes information derived from both acoustic cardiography and ECG [15,16,18] .…”

Section: Discussionmentioning

confidence: 99%

Assessment of a New Piezoelectric Transducer Sensor for Noninvasive Cardiorespiratory Monitoring of Newborn Infants in the NICU

Sato¹,

Ishida-Nakajima

Ishida

et al. 2010

Neonatology

View full text Add to dashboard Cite

Background: Electrocardiogram (ECG) and impedance pneumography (IPG), the most widely used techniques for cardiorespiratory monitoring in the neonatal intensive care unit (NICU), have the disadvantage of causing skin damage when used for very premature newborn infants. To prevent skin damage, we designed a new piezoelectric transducer (PZT) sensor. Objective: To assess the potential of the PZT sensor for cardiorespiratory monitoring in the NICU. Methods: The PZT sensor was placed under a folded towel under a neonate to detect an acoustic cardiorespiratory signal, from which heart rate (HR) and breathing rate (BR) were calculated, together with simultaneous ECG/IPG recording for 1–9 days for long and brief (1-min) assessment. Results: The brief assessment showed average correlation coefficients of 0.92 ± 0.12 and 0.95 ± 0.02 between instantaneous HRs/BRs detected by the PZT sensor and ECG/IPG in 27 and 11 neonates examined. During the long assessment, the HR detection rate by the PZT sensor was ∼10% lower than that by ECG (82.6 ± 12.9 vs. 91.8 ± 4.1%; p = 0.001, n = 27), although comparable (90.3 ± 4.1 vs. 92.5 ± 3.4%, p = 0.081) in ∼70% (18/27) of neonates examined; BR detection rate was comparable between the PZT sensor and IPG during relatively stable signal conditions (95.9 ± 4.0 vs. 95.3 ± 3.5%; p = 0.38, n = 11). The PZT sensor caused neither skin damage nor body movement increase in all neonates examined. Conclusion: The PZT sensor is noninvasive and does not cause skin irritation, and we believe it does provide a reliable, accurate cardiorespiratory monitoring tool for use in the NICU, although the issue of mechanical-ventilation noise remains to be solved.

show abstract

Section: Discussionmentioning

confidence: 99%

Assessment of a New Piezoelectric Transducer Sensor for Noninvasive Cardiorespiratory Monitoring of Newborn Infants in the NICU

Sato¹,

Ishida-Nakajima

Ishida

et al. 2010

Neonatology

View full text Add to dashboard Cite

show abstract

“…Several groups have applied a variety of signal processing techniques to pediatric heart sound recordings and report sensitivity and specificity values approaching 100%. [120][121][122][123][124] Automatically generated computer-aided auscultation interpretation can also provide immediate decision support to the primary care provider. 125 With computer-aided auscultation used this way, the referral sensitivity and specificity of primary care providers increased, with the potential to significantly reduce unnecessary and costly referrals.…”

Section: Tele-auscultationmentioning

confidence: 99%

Telemedicine in Pediatric Cardiology: A Scientific Statement From the American Heart Association

Satou¹,

Rheuban²,

Alverson³

et al. 2017

Circulation

View full text Add to dashboard Cite

A dvancements in technology and broadband have revolutionized the current practice of medicine. The field of pediatric cardiology is no exception given the need for prompt diagnosis and reliance on cardiac imaging to identify infants and children with potentially life-threatening cardiovascular disease. As the relationship between telemedicine and pediatric cardiology has advanced, it has created a need to develop a broad, comprehensive document reviewing all the various aspects of telemedicine in pediatric cardiology. For more than a decade, a significant body of literature has been published describing individual experiences and practices, yet there remains no comprehensive statement or document summarizing this rapidly advancing field. In an effort to describe the collective experience and to provide structure and guidance for pediatric cardiology practitioners and healthcare providers, we have developed a scientific statement on the use of telemedicine in pediatric cardiology.Specific areas explored in this document include both neonatal and fetal teleechocardiography, implications for training community sonographers, pulse oximetry programs, qualitative improvement and appropriate use criteria initiatives, and remote electrophysiological monitoring. This document also includes teleconsultation and teleausculation, direct-to-consumer and home monitoring programs, and a look into the use of telemedicine and pediatric cardiology in the intensive care setting. Furthermore, a detailed review of the legislative, public policy, and legal aspects of telemedicine is provided, along with financial and reimbursement information.Several terms are used in the literature interchangeably; a brief explanation is provided to help readers of this document. The term telehealth is defined as the use of technology to bridge distances in any aspect of medicine; telemedicine is the specific application of technology to conduct clinical medicine at a distance. The term telecardiology is defined as the broad application of telemedicine in the field of cardiology specifically, and tele-echocardiography is the most common application used within this field. ECHOCARDIOGRAPHY AND TELEMEDICINEEchocardiography is the most commonly used noninvasive cardiovascular imaging modality and is considered to be both safe and cost-effective. Tele-echocardiography can be described as a process in which a provider or a technician obtains cardiovascular ultrasound images from a given patient and these images are subsequently transmitted to an offsite location where a cardiologist can provide further analysis and interpretation. Thus, tele-echocardiography enables expert interpretation and consultation in a rapid and potentially geographically disparate fashion, enabling prompt and accurate decision making involving triage, transport, and therapeutic priorities. Tele-echocardiography is now routinely used across the age and subspecialty spectrum in pediatric cardiology.

show abstract

“…Characteristic waveforms were extracted using this model from heart sounds to detect heart disorders. [6]. In 2008, Nigam et al proposed a method to locate systolic murmurs in the PCG signal based on their visual simplicity which is independent of their absolute amplitude and frequency characteristics.…”

Section: Discussionmentioning

confidence: 99%