Table 1.
Mean susceptibility of globus pallidus in all 5 healthy subjects using COSMOS, PDF+LFI, TFI, Differential QSM and SSQSM. Underestimation in SSQSM are observed in all cases, compared with PDF+LFI, TFI and Differential QSM.
| Method | χ GP1
(ppm) |
χ GP2
(ppm) |
χ GP3
(ppm) |
χ GP4
(ppm) |
χ GP5
(ppm) |
Average relative difference |
|---|---|---|---|---|---|---|
| COSMOS | 0.147 | 0.143 | 0.163 | 0.175 | 0.177 | |
| PDF+LFI | 0.139 | 0.139 | 0.160 | 0.159 | 0.163 | −5.4% |
| TFI | 0.133 | 0.125 | 0.147 | 0.154 | 0.170 | −9.6% |
| Diff. QSM | 0.139 | 0.133 | 0.147 | 0.158 | 0.153 | −8.9% |
| SSQSM | 0.124 | 0.112 | 0.104 | 0.117 | 0.123 | −27.4% |