Exercises · B0 Mapping

Quantitative MRI mOOC

B₀ Mapping

Exercise 5-1

Dual-echo B₀ mapping: a single-voxel example

Double-echo B₀ mapping in a single voxel: one spin, then water and fat together, then choosing the echoes so that fat no longer biases the field map.

Exercise 5-2

Phase unwrapping

Unwrapping and masking, on real phase.

Exercise 5-3

Shimming

Finding the shim currents by hand, then volume-wise and slice-wise shimming compared with the optimal shims.

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