TABLE 4.
Averaged susceptibility values (mean ± standard deviation) in ppb for midbrain structures in the reconstructed QSM images using TKD, iSWIM, MEDI, and scSWIM for ten healthy subjects from the low-resolution in vivo dataset from a Siemens 3T PRISMA scanner.
| Regions | TKD | iSWIM | MEDI | scSWIM | HC from Ghassaban et al. (2019a) |
| CN-L | 45.84 ± 9.05 | 44.22 ± 9.92 | 59.10 ± 13.33 | 52.77 ± 9.16 | 52.4 ± 7.6 |
| CN-R | 42.35 ± 9.16 | 40.76 ± 9.11 | 48.87 ± 13.62 | 50.93 ± 9.39 | 54.6 ± 6.6 |
| GP-L | 105.63 ± 16.15 | 118.45 ± 19.04 | 115.97 ± 20.53 | 129.13 ± 19.69 | 127.8 ± 7.8 |
| GP-R | 114.13 ± 21.33 | 126.85 ± 25.61 | 130.03 ± 24.41 | 136.12 ± 23.49 | 133.1 ± 10.1 |
| PT-L | 52.56 ± 17.32 | 54.82 ± 19 | 54.05 ± 19.39 | 68.71 ± 20.84 | 72.8 ± 7 |
| PT-R | 53.65 ± 22.91 | 56.19 ± 24.06 | 53.69 ± 22.51 | 67.50 ± 24.74 | 68.7 ± 6.4 |
| RN-L | 99.82 ± 21.34 | 109.65 ± 27.26 | 98.26 ± 17.49 | 111.51 ± 16.62 | 102.9 ± 12.9 |
| RN-R | 97.58 ± 25.33 | 106.64 ± 31.64 | 101.73 ± 26.64 | 108.91 ± 22.72 | 108.1 ± 13.0 |
| SN-L | 111.57 ± 14.12 | 123.87 ± 17.91 | 122.62 ± 11.74 | 128.05 ± 6.67 | 127.5 ± 10.8 |
| SN-R | 108.37 ± 18.54 | 120.58 ± 22.20 | 120.31 ± 24.55 | 123.83 ± 13.51 | 115.4 ± 11.6 |
Also, the results from Ghassaban et al. (2019a) are summarized in the last column where the DGM structures are measured in both hemispheres in 24 healthy subjects from a GE 3T scanner. CN, Caudate Nucleus; GP, Globus Pallidus; PT, Putamen; RN, Red Nucleus; SN, Substantia Nigra; L, Left; R, Right; and ppb, parts per billion unit.