Calcium Load in the Aortic Valve, Aortic Root, and Left Ventricular Outflow Tract and the Risk for a Periprocedural Stroke Autor Henrik Bjursten, MD, PhD, Sasha Koul, MD, PhD, Olov Duvernoy, MD, PhD, Erika Fagman, MD, PhD, Ninos Samano, MD, PhD, Johan Nilsson, MD, PhD, Niels Erik Nielsen, MD, PhD, Andreas Rück, MD, PhD, Jan Johansson, MD, Stefan James, MD, PhD, Magnus Settergren, MD, PhD, Matthias Götberg, MD, PhD, Adrian Pistea, MD, PhD