* Corresponding authors

^a Enzian Pharmaceutics Blaesi AG, CH-7078 Lenzerheide, Switzerland

^b Enzian Pharmaceutics, Inc., Cambridge, MA 02139, USA
E-mail: ablaesi@enzianpharma.com

^c Diagnostic Imaging Research Unit (DIRU), Department of Clinical Diagnostics and Services, Vetsuisse Faculty, University of Zurich, CH-8057 Zurich, Switzerland

^d Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA