In Vivo Magic Angle Magnetic Resonance Imaging for Cell Tracking in Equine Low-Field MRI

Figure 3

Exemplary MRI images. Exemplary images of T1- and T2-weighted gradient echo MRI sequences before and immediately after as well as 6, 12, and 24 weeks after cell application at the same level of the limb. The first and third rows show standard images (90°), and the second and fourth rows show the corresponding magic angle (MA) images. The SDFT with its hyperintense lesion is identified by the white edging. After injection of labelled cells, they appear as pronounced hypointense artefacts (white arrows). Note that the healthy tendon tissue (white arrowheads) is difficult to discriminate from the artefact in images but not in the magic angle (MA) images.