CV measurement - triangulation technique

[drsewilliams]

Triangulation of a set of arbitrary points on the surface of a cardiac chamber allows conduction velocity to be calculated. This method can be used with catheters of fixed configuration and simultaneous recording in experimental settings (Horner et al., 1997), but can also be used with mapping data collected under uniform positions where the assumption is that conduction velocities are constant over time. Triangulation of electrogram recording points and calculation of wave direction and wave velocity using trigonometry. Typically constraints are placed on the selection of triangles and triangle geometry to minimise errors in calculation of conduction velocity.(Kojodjojo et al., 2006b, 2006a, 2007; Sawa et al., 2008; Ravelli et al., 2011; Cantwell et al., 2014)