Anatomical-electrical coupling of cardiac axes: Definitions and population variability for advancing personalised ECG interpretation
Fig 2
Anatomical axes computation methods.
(A) The labelled anatomical regions of the surface meshes as outputted from the automated pipeline. (B) The 5 distinct definitions used to compute the axes, based on PCA’s first component of biventricular point clouds and different combinations of labelled valvular regions. Note that the apex will have a slightly different location for each of the 3 axes definitions, but it has been drawn as a single one for simplicity of the figure.