Characteristics of Korotkoff sounds using instantaneous frequency signal analysis

Al-Amri, Mohammad ORCID: https://orcid.org/0000-0003-2806-0462, Nizar, Mohd, Alzaben, Awad and Fadlee, Mohd 2007. Characteristics of Korotkoff sounds using instantaneous frequency signal analysis. WSEAS Transactions on Signal Processing 3 , pp. 296-302.

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Abstract

The Systolic and Diastolic blood pressure can be measure by using Korotkoff Sounds. The Korotkoff Sounds are known to be characterized by five phases, where these phases are important to measure both of them. In this paper, a Korotkoff sound from 15 healthy volunteers has been recorded, and the signals are then been analyzed the characteristics of Korotkoff Sounds by using the Instantaneous Frequency (IF). It was found that phase 1, 2, 3, 4 and 5 have frequency range between 5 – 32Hz with phase 3 has the highest amplitude. The amplitude then starts to decrease in phase 4 and phase 5.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Healthcare Sciences
Subjects:	R Medicine > R Medicine (General)
Uncontrolled Keywords:	Korotkoff sounds, Instantaneous frequency and blood pressure
ISBN:	9789608457607
Last Modified:	24 Oct 2022 10:17
URI:	https://orca.cardiff.ac.uk/id/eprint/43767

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