“…Due to ethical concerns and In principle, whole-body scans are required after cell engraftment to detect injected cells in various organs, technical hurdles (i.e., the necessity of immunosuppression and formation of teratomas after transplantation), followed by high-resolution scans of the tissues where the cells were found. For this purpose, so far only magMSCs rather than embryonic stem cells recently came into focus for the development of regenerative cellnetic resonance imaging (MRI) meets the requirements of penetration depth, spatial resolution, repeated meabased therapies and even for the therapy of brain tumors (6,14,16,25,26,28,33,40,41). Encouraging experimental surements of individuals, and clinical availability (28,36,46).…”