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Averaged CBF and SNR values (mean ± STD, n = 8) in GM and WM ROIs and their GM/WM ratios of the four different ASL methods.
| CBF (mL/100g/min) | SNR | ||||||
|---|---|---|---|---|---|---|---|
| GM | WM | GM/WM ratio | GM | WM | GM/WM ratio | ||
| PCASL | 48.0±11.1 | 14.5±3.2 | 3.31 | 1.93±0.46 | 0.41±0.11 | 4.72 | |
| VSASL | DRHT | 49.5±6.7 | 15.5±2.6 | 3.19 | 1.27±0.29 | 0.36±0.08 | 3.50 |
| FT-VSS | 49.3±6.5 | 15.1±2.5 | 3.26 | 1.60±0.20 | 0.36±0.08 | 4.40 | |
| FT-VSI | 49.5±7.5 | 14.8±2.4 | 3.36 | 1.76±0.34 | 0.42±0.07 | 4.14 | |
