The Strength-Interval Curve in Cardiac Tissue | Zendy

Sunil M. Kandel | Zendy; Bradley J. Roth | Zendy

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The Strength-Interval Curve in Cardiac Tissue

Author(s) -

Sunil M. Kandel,

Bradley J. Roth

Publication year - 2013

Publication title -

computational and mathematical methods in medicine

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.462

H-Index - 48

eISSN - 1748-6718

pISSN - 1748-670X

DOI - 10.1155/2013/134163

Subject(s) - bidomain model , interval (graph theory) , refractory period , biomedical engineering , materials science , mathematics , physics , cardiology , engineering , medicine , combinatorics , quantum mechanics

The bidomain model describes the electrical properties of cardiac tissue and is often used to simulate the response of the heart to an electric shock. The strength-interval curve summarizes how refractory tissue is excited. This paper analyzes calculations of the strength-interval curve when a stimulus is applied through a unipolar electrode. In particular, the bidomain model is used to clarify why the cathodal and anodal strength-interval curves are different, and what the mechanism of the “dip” in the anodal strength-interval curve is.

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