Finite element models used.

Abstract

<p>Electrode nodes are indicated in green. <u>A</u>: 2D circular uniform FEM () <u>B</u>: 3D cylindrical uniform FEM () <u>C</u>: 3D cylindrical FEM with lung regions () <u>D</u>: 2D circular uniform FEM with electrode movement () (with arrows showing representative electrode movement).</p