Molecular Imaging 2017

Summary

• MRI is a versatile technique – different types of anatomical contrast: T1 and T2 – functional techniques: DWI, DCE-MRI • Multiple sequences can be scanned within a single exam • Spins precess at the Larmor frequency: ω 0 = γ ·B 0 • Gradient magnets are used for spatial encoding • Non-linearities in gradients and distortions in magnetic field result in geometrical distortions • Reducing water-fat shift improves geometrical integrity at the cost of SNR