Funding for this research was provided by:
Received: 22 February 2021
Accepted: 17 May 2021
First Online: 12 July 2021
: The study was approved by Ethics Committee of the University of Hamburg (PV7193). All patients gave written informed consent.
: Not applicable.
: H.S. and S.K. received research grants from Myocardial Solutions, Inc., Morrisville, North Carolina, USA. S.K. owns stock options of Myocardial Solutions. All other authors declare that they have no competing interests regarding this manuscript.