1. Department of Neuroradiology; Heidelberg University Hospital; Heidelberg Germany
2. Department of Endocrinology, Diabetology, and Clinical Chemistry (Internal Medicine); Heidelberg University Hospital; Heidelberg Germany
3. German Center of Diabetes Research; Munich-Neuherberg Germany
4. Division of Experimental Radiology, Department of Neuroradiology; Heidelberg University; Heidelberg Germany
5. Department of Neuroradiology; Würzburg University Hospital; Würzburg Germany
6. Institute for Diabetes and Cancer, Helmholtz Diabetes Center, Helmholtz Center Munich; Munich Germany