PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 15371005

Analysis of the second heart sound using continuous wavelet transform.

S M Debbal·F Bereksi-Reguig
View original source ↗Export metadata ↓

Abstract

This paper is concerned with a synthesis study of Continuous Wavelet Transform (CWT) in analysing the second heart sound of the phonocardiogram (PCG). The second heart sound S2 consists of two major components (A2 and P2) with a time delay between them which is very important for a diagnosis. It is shown that CWT provides enough features of these components of time, frequency and time delay to aid diagnosis.

Explore related subjects

Aortic CoarctationAortic ValveHeart SoundsHumansMitral Valve StenosisPhonocardiographyPulmonary ValveSignal Processing, Computer-AssistedTime FactorsJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

S M Debbal, F Bereksi-Reguig. Analysis of the second heart sound using continuous wavelet transform.. https://doi.org/10.1080/0309190031000111362

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2007

Diagnosis of aortic coarctation by tardus-parvus renal artery Doppler signal in an infant with multicystic dysplastic kidney: a case report.

We report an infant with known unilateral multicystic dysplastic kidney (MCDK) who underwent renal ultrasonography and Doppler spectral waveform analysis for investigation of hypertension. A tardus-parvus waveform was demonstrated in the renal artery on the normal side suggesting either renal artery or more proximal stenosis. Coarctation of the aorta was subsequently demonstrated.

Aortic Coarctation↗
PubMed2007

Moyamoya disease associated with midaortic syndrome.

We report a 1-year-old girl who presented moyamoya disease associated with midaortic syndrome. She had been treated for cardiac failure and severe hypertension due to midaortic syndrome until she suffered seizure and repeated cerebral ischemic attack. Cerebral angiography revealed stenosis of the bilateral internal carotid artery at its terminal portion. She was successfully treated with encephaloduroarteriosynangiosis, and ischemic attack ceased postoperatively. This is the first report of moyamoya disease with midaortic syndrome. Although cerebral ischemic attack has been effectively managed by encephaloduroarteriosynangiosis, renovascular hypertension is still difficult to control.

Aortic Coarctation↗