Yiyong Han1, Vasilis Ntziachristos1, Amir Rosenthal2. 1. Institute for Biological and Medical Imaging, Helmholtz Zentrum Muenchen, Ingolstaedter Landstrasse 1, Neuherberg 85764, GermanybTechnische Universitaet Muenchen, Chair for Biological Imaging, Ismaningerstrasse 22, Munich 81675, Germany. 2. Institute for Biological and Medical Imaging, Helmholtz Zentrum Muenchen, Ingolstaedter Landstrasse 1, Neuherberg 85764, GermanybTechnische Universitaet Muenchen, Chair for Biological Imaging, Ismaningerstrasse 22, Munich 81675, GermanycTechnion-Israel In.