Expand description
Truncated k-space division (TKD) / TSVD for QSM
TKD is the simplest dipole inversion method. It directly divides the field in k-space by the dipole kernel, with truncation to avoid division by small values near the magic angle.
Reference: Shmueli, K., de Zwart, J.A., van Gelderen, P., Li, T.Q., Dodd, S.J., Duyn, J.H. (2009). “Magnetic susceptibility mapping of brain tissue in vivo using MRI phase data.” Magnetic Resonance in Medicine, 62(6):1510-1522. https://doi.org/10.1002/mrm.22135
Reference implementation: https://github.com/kamesy/QSM.jl
Structs§
- TkdParams
- TKD algorithm parameters
Functions§
- tkd
- Truncated k-space division (TKD) for dipole inversion
- tkd_
default - TKD with default B direction (0, 0, 1) and threshold 0.15
- tsvd
- Truncated singular value decomposition (TSVD) variant