Partial potentials of selected cardiac muscle regions and heart activity model based on single fibres.

Abstract:

:We present single fibre heart activity model (SFHAM) based on the current flow through the five bunches of fibres of the cardiac muscle (CM). The five effective fibres are identified and assigned to the appropriate segments of CM. Analytical functions describing ionic flows along the fibres are derived and proposed. The parameters determining the shapes and amplitudes of the functions proposed are obtained on the basis of standard 12-lead ECG measurements after numerical fitting procedures concentrating on the QRS-waves. As a consequence, five independent courses of partial, transient potentials are obtained representing: anterior, inferior, lateral, posterior walls, and interventricular septum activities, respectively. Moreover, to check our theoretical results we compare the potentials calculated with those from physical measurements performed on the patient's body surface. We expect that SFHAM will permit detection of pathological changes in particular fragments of CM.

journal_name

Med Eng Phys

authors

Janicki JS,Leoński W,Jagielski J

doi

10.1016/j.medengphy.2009.08.007

subject

Has Abstract

pub_date

2009-12-01 00:00:00

pages

1276-82

issue

10

eissn

1350-4533

issn

1873-4030

pii

S1350-4533(09)00182-9

journal_volume

31

pub_type

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