Table 1.
Group-averaged T2, ADC∥, and ADC⊥ values of the inner, middle and outer bands of the retina, vitreous humor, and brain tissues at 4.7 T (n = 6, mean ± SD)
| T2 (ms) | ADC∥ (×10−3 mm2/s) | ADC⊥ (×10−3 mm2/s) | |
|---|---|---|---|
| Vitreous humor | 218 ± 12 | 273 ± 0.22 | 2.66 ± 0.22 |
| Retina—inner | 67 ± 5 | 1.1 ± 0.2 | 0.74 ± 0.1 |
| Retina—middle | 48 ± 5 | 1.2 ± 0.3 | 0.67 ± 0.1 |
| Retina—outer | 95 ± 6 | 3.3 ± 0.7 | 1.2 ± 0.2 |
| Muscle around eyea | 73 ± 8 | 0.78 ± 0.2 | 0.75 ± 0.2 |
| Rat brain gray matter | 54 ± 2b | 0.74 ± 0.02c | |
Adapted from Table 1 of Shen et al., J Magn Reson Imaging.48
T2, ADC∥ and ADC⊥ of the vitreous were statistically different (P < 0.005) from those of inner, middle, and outer strips, except between the vitreous and outer strip ADC∥
ADC, apparent diffusion coefficient.
a
Muscle at the posterior–dorsal area of the eye was obtained to check for internal consistency.
b
Unpublished rat data (n = 7) obtained using essentially identical sequence parameters as herein.
c
Average ADC measured along the x, y, and z directions separately from rat brain.82