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. Author manuscript; available in PMC: 2020 Feb 24.
Published in final edited form as: J Interv Card Electrophysiol. 2019 Jun 14;57(1):115–123. doi: 10.1007/s10840-019-00567-2

Fig. 1.

Fig. 1

Screenshot of calculation of wave front angle. On-screen protractor (Protractor Version 10.0, Softlibs) superimposed on the activation map. The predominant wave front angle is then measured (pink dashed lines); the angle of the same isochrones is then directly compared between the right ventricular pacing map and the LBBB map as both activation maps are identically aligned