Table 1.
Reconstruction parameters of each QSM method. For Numerical Brain Phantom, the reconstruction parameters were reported for the case where we used 5 SMV kernels for all the methods. For 3D-EPI, the reconstruction parameters were reported for the case where we used 5 SMV kernels for the single-step methods and 14 SMV kernels for the multi-step methods.
| Methods | Parameter | Duke Brain Phantom | Numerical Brain Phantom | 3D-EPI | ME Wave-CAIPI @ 3T | High-res Wave-CAIPI @ 7T |
|---|---|---|---|---|---|---|
| V-SHARP L2 | α | 8 × 10−3 | 2 × 10−2 | 2.73 × 10−2 | 2.73 × 10−2 | 5.56 × 10−2 |
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| V-SHARP TV | α | 4 × 10−4 | 2 × 10−4 | 5.46 × 10−3 | 2.73 × 10−4 | 2.66 × 10−2 |
| μ | 3 × 10−2 | 3 × 10−2 | 3 × 10−3 | 3 × 10−3 | 10−1 | |
|
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| V-SHARP TGV | α | 3 × 10−4 | 2 × 10−4 | 4.36 × 10−3 | 2.73 × 10−4 | 2.66 × 10−2 |
| μ0=μ1 | 3 × 10−2 | 3 × 10−2 | 3 × 10−3 | 3 × 10−3 | 10−1 | |
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| Single-Step L2 | α | 3 × 10−3 | 3 × 10−4 | 2.66 × 10−2 | 2.09 × 10−2 | 6.80 × 10−3 |
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| Single-Step TV | α | 2 × 10−4 | 7 × 10−5 | 5.46 × 10−3 | 2.69 × 10−4 | 7.00 × 10−3 |
| μ0=μ1 | 3 × 10−2 | 3 × 10−2 | 10−1 | 10−1 | 10−1 | |
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| Single-Step TGV | α0 | 3 × 10−4 | 6 × 10−5 | 5.46 × 10−3 | 2.69 × 10−4 | 7.00 × 10−3 |
| μ0=μ1=μ2 | 3 × 10−2 | 3 × 10−2 | 10−1 | 10−1 | 10−1 | |