Table 1.
Summary of mean values for the monoexponential, short, and long biexponential components of T1ρ and the ratio of biexponential pixels to a total number of pixels calculated in five ROIs.
| ROI | Tmono (ms) | Tshort (ms) | Tlong (ms) | as (%) | al (%) | Ratio (%) | |
|---|---|---|---|---|---|---|---|
| MTC | Mean | 33.24 | 7.98 | 47.88 | 36.86 | 63.14 | 46 |
| SD | 6.95 | 1.48 | 4.50 | 1.48 | 4.50 | 18 | |
| R2 | 0.96 | 0.98 | 0.98 | – | – | – | |
| MFC | Mean | 38.72 | 7.98 | 53.14 | 32.78 | 67.22 | 34 |
| SD | 5.12 | 1.95 | 6.77 | 1.95 | 6.77 | 19 | |
| R2 | 0.95 | 0.97 | 0.97 | – | – | – | |
| LTC | Mean | 34.17 | 6.04 | 48.92 | 39.77 | 60.23 | 44 |
| SD | 4.13 | 0.87 | 5.20 | 0.87 | 5.20 | 17 | |
| R2 | 0.95 | 0.97 | 0.97 | – | – | – | |
| LFC | Mean | 35.62 | 6.67 | 49.83 | 32.98 | 67.02 | 33 |
| SD | 6.14 | 1.56 | 8.96 | 1.56 | 8.96 | 10 | |
| R2 | 0.91 | 0.94 | 0.94 | – | – | – | |
| PC | Mean | 29.39 | 5.53 | 45.27 | 45.63 | 54.37 | 53 |
| SD | 6.50 | 1.62 | 8.98 | 1.62 | 8.98 | 17 | |
| R2 | 0.95 | 0.96 | 0.96 | – | – | – | |
|
| |||||||
| Global | Mean | 34.228 | 6.84 | 49.008 | 37.604 | 62.396 | 42 |
| SD | 5.768 | 1.496 | 6.882 | 1.496 | 6.882 | 16.2 | |
| R2 | 0.944 | 0.964 | 0.964 | – | – | – | |
SD: Standard Deviation
R2: Adjusted R square shows the goodness of fit