Fig. 4

3D ECG-gated cine image of a mouse heart at 156 μm isotropic resolution obtained before (at 7 T) and after injection of USPIO at 200 μmol Fe/kg (at 4.7, 7 and 9.4 T). Ten images per cardiac cycle were generated, the images at the end of diastole (left) and systole (right) are shown in two orientations (short axis: upper panels; long axis: lower panels). No respiratory gating was used