Table 6. Adjusted means and mean differences (95% confidence interval) of regional cortical thickness between 1.5 T and 3 T for females in the age group 41–55 after controlling for confounding effects.
| Region | ||||||
| Left Hemisphere | Right Hemisphere | |||||
| 1.5 T | 3 T | Mean differences | 1.5 T | 3 T | Mean differences | |
| Banks of the STS+ | 2.52 | 2.54 | 0.02 (−0.11, 0.16) | 2.53 | 2.57 | 0.04 (−0.09, 0.17) |
| Caudal anterior cingulate | 2.62 | 2.72 | 0.10 (−0.08, 0.28) | 2.77 | 2.80 | 0.04 (−0.14, 0.22) |
| Caudal middle frontal | 2.56 | 2.52 | −0.04 (−0.16, 0.08) | 2.57 | 2.46 | −0.11 (−0.23, 0.01) |
| Cuneus | 1.91 | 1.83 | −0.08 (−0.18, 0.02) | 1.87 | 1.77 | −0.10 (−0.21, 0.01) |
| Entorhinal | 3.14 | 3.24 | 0.10 (−0.16, 0.36) | 3.01 | 2.94 | −0.06 (−0.33, 0.20) |
| Fusiform | 2.52 | 2.62 | 0.10 (−0.02, 0.21) | 2.48 | 2.59 | 0.11 (0.00, 0.22) |
| Inferior parietal | 2.46 | 2.53 | 0.06 (−0.05, 0.17) | 2.53 | 2.54 | 0.01 (−0.09, 0.12) |
| Inferior temporal | 2.72 | 2.73 | 0.01 (−0.11, 0.12) | 2.72 | 2.78 | 0.06 (−0.07, 0.18) |
| Isthmus cingulate | 2.53 | 2.45 | −0.08 (−0.23, 0.07) | 2.52 | 2.40 | −0.13 (−0.27, 0.02) |
| Lateral occipital | 2.21 | 2.20 | −0.02 (−0.13, 0.09) | 2.34 | 2.29 | −0.05 (−0.15, 0.06) |
| Lateral oribitofrontal | 2.63 | 2.65 | 0.03 (−0.10, 0.15) | 2.74 | 2.65 | −0.09 (−0.21, 0.03) |
| Lingual | 1.95 | 1.98 | 0.03 (−0.07, 0.13) | 2.01* | 1.88* | −0.13 (−0.23, −0.02) |
| Medial orbitofrontal | 2.51 | 2.49 | −0.02 (−0.15, 0.10) | 2.83 | 2.78 | −0.05 (−0.18, 0.08) |
| Middle temporal | 2.82 | 2.80 | −0.02 (−0.15, 0.11) | 2.76 | 2.77 | 0.01 (−0.11, 0.14) |
| parahippocampal | 2.48 | 2.66 | 0.18 (−0.05, 0.42) | 2.39 | 2.56 | 0.17 (−0.05, 0.39) |
| paracentral | 2.28 | 2.23 | −0.05 (−0.19, 0.08) | 2.09 | 2.14 | 0.04 (−0.08, 0.17) |
| Pars opercularis | 2.62 | 2.60 | −0.02 (−0.14, 0.10) | 2.69 | 2.63 | −0.06 (−0.18, 0.07) |
| Pars orbitalis | 2.67 | 2.62 | −0.05 (−0.22, 0.12) | 2.68 | 2.50 | −0.18 (−0.37, 0.01) |
| Pars triangularis | 2.49 | 2.48 | −0.01 (−0.14, 0.13) | 2.55 | 2.48 | −0.06 (−0.20, 0.07) |
| Pericalcarine | 1.58 | 1.60 | 0.02 (−0.08, 0.12) | 1.56* | 1.44* | −0.12 (−0.23, −0.01) |
| Postcentral | 2.08 | 2.08 | 0.00 (−0.10, 0.10) | 1.97 | 2.04 | 0.07 (−0.03, 0.16) |
| Posterior cingulate | 2.46 | 2.48 | 0.02 (−0.10, 0.14) | 2.49 | 2.51 | 0.03 (−0.10, 0.15) |
| Precentral | 2.50 | 2.42 | −0.08 (−0.21, 0.05) | 2.33 | 2.26 | −0.07 (−0.20, 0.06) |
| Precuneus | 2.33 | 2.33 | −0.01 (−0.11, 0.10) | 2.25 | 2.33 | 0.08 (−0.03, 0.18) |
| Rostral anterior cingulate | 2.86 | 2.93 | 0.08 (−0.10, 0.25) | 3.05 | 3.13 | 0.09 (−0.11, 0.28) |
| Rostral middle frontal | 2.46* | 2.35* | −0.11 (−0.22, −0.01) | 2.52 | 2.45 | −0.07 (−0.19, 0.04) |
| Superior frontal | 2.78 | 2.70 | −0.08 (−0.21, 0.05) | 2.84 | 2.74 | −0.09 (−0.22, 0.03) |
| Superior parietal | 2.17 | 2.18 | 0.00 (−0.10, 0.11) | 2.15 | 2.18 | 0.03 (−0.08, 0.14) |
| Superior temporal | 2.71 | 2.74 | 0.03 (−0.10, 0.15) | 2.64 | 2.68 | 0.04 (−0.09, 0.18) |
| Supramarginal | 2.58 | 2.56 | −0.02 (−0.13, 0.09) | 2.56 | 2.58 | 0.01 (−0.10, 0.12) |
| Frontal pole | 2.84 | 2.73 | −0.11 (−0.33, 0.11) | 3.12 | 3.01 | −0.11 (−0.33, 0.10) |
| Temporal pole | 3.44 | 3.39 | −0.05 (−0.34, 0.23) | 3.55 | 3.50 | −0.05 (−0.33, 0.22) |
| Transverse temporal | 2.36 | 2.29 | −0.07 (−0.25, 0.10) | 2.18 | 2.13 | −0.05 (−0.25, 0.14) |
| Insula | 2.97 | 2.97 | 0.00 (−0.12, 0.12) | 3.08 | 3.06 | −0.02 (−0.15, 0.11) |
Note: overall field strength effect on regional cortical thickness is significant with p-value <0.0001 using Pillai's Trace test; Factors ajusted for include: age, gender, resolution, scanner type, sequence, and interactions of field*age, and field*gender. +STS = superior temporal sulcus.