Affiliation: University Heart Center Freiburg - Bad Krozingen, Institute for Experimental Cardiovascular Medicine; University of Freiburg, Faculty of Medicine, Freiburg, Germany.

Callum M. Zgierski-Johnston (né Johnston) studied Biomedical Engineering at the University of Auckland. He stayed on in Auckland for a PhD in Bioengineering with the Auckland Bioengineering Institute with research focussed on heat sensing in muscle calorimetry. In 2015, he joined the Cardiac Biophysics and Systems Biology group at Imperial College London as a post-doctoral researcher. Since 2016, Callum heads the Bioinstrumentation Section at the Institute for Experimental Cardiovascular Medicine at the University Heart Center Freiburg in Freiburg. Here, his research focuses on the development of new imaging techniques for investigating cardiac electrophysiology and applying these to investigate electrophysiological changes occurring in disease.