MR Solutions (Guildford, Surrey, GU3 1LR, UK) Powerscan Preclinical MRI System 7.0T horizontal 24cm bore scanner. This scanner is designed for mice, rats and somewhat larger animal studies with both in vivo and ex vivo applications. It is equipped with two independent broadband RF transmit channels for excitation and decoupling, four independent broadband RF receive channels; shielded gradient coil set with integral second order shim coils, water cooled (X: 344 mT/m, Y: 332 mT/m, Z: 375mT/m; linearity +/- 5% over 70 mm DSV; 230 mm OD, 150 mm ID); a variety of linear and quadrature RF coils (surface and volume coils); and a gaseous anesthetic system with physiological monitoring hardware & software (temperature, respiration, spO2, ECG) provide syncing MR acquisition to ECG or respiration. The magnet is a cryogen-free system with integral cryo-cooler and compressor system.