TABLE 2.
Average Perfusion Time Course Metrics Measured With pCASL or PASL
| pCASL | PASL (scan 1) | PASL (scan 2) | |||
|---|---|---|---|---|---|
| Pholms | Pholms | ||||
| Gastroc Peak Perfusion (mL/min/100g) | 41 (9) | 51 (11) | 0.145 | 52 (13) | 0.508 |
| Soleus Peak Perfusion (mL/min/100g) | 50 (26) | 78 (33) | 0.508 | 69 (28) | 0.620 |
| Peroneus Peak Perfusion (mL/min/100g) | 50 (6) | 41 (12) | 0.620 | 45 (12) | 0.825 |
| AC Peak Perfusion (mL/min/100g) | 47 (13) | 44 (16) | 0.825 | 45 (14) | 0.620 |
| Whole-Leg Peak Perfusion (mL/min/100g) | 47 (20) | 51 (12) | 0.620 | 50 (12) | 0.998 |
| Gastroc TTP Perfusion (s) | 23 (3) | 33 (9) | 0.998 | 30 (8) | 1.000 |
| Soleus TTP Perfusion (s) | 28(8) | 30 (12) | 1.000 | 22 (7) | 1.000 |
| Peroneus TTP Perfusion (s) | 26 (5) | 27 (10) | 1.000 | 24 (7) | 1.000 |
| AC TTP Perfusion (s) | 23 (3) | 20 (8) | 1.000 | 18 (7) | 1.000 |
| Leg TTP Perfusion (s) | 25 (3) | 27 (7) | 1.000 | 23 (7) | 0.795 |
| Gastroc HFV (mL/100g) | 33 (10) | 42 (13) | 0.795 | 37 (14) | 0.943 |
| Soleus HFV (mL/100g) | 39 (23) | 70 (35) | 0.943 | 52 (24) | 1.000 |
| Peroneus HFV (mL/100g) | 29 (10) | 23 (8) | 1.000 | 20 (7) | 0.973 |
| AC HFV (mL/100g) | 25 (11) | 22 (10) | 0.973 | 18 (5) | 1.000 |
| Leg HFV (mL/100g) | 33 (15) | 42 (12) | 1.000 | 38 (13) | 0.986 |
| Gastroc HD (s) | 82 (21) | 88 (14) | 0.986 | 90 (21) | 0.458 |
| Soleus HD (s) | 80 (29) | 101 (35) | 0.458 | 102 (28) | 0.458 |
| Peroneus HD (s) | 73 (22) | 68 (17) | 0.458 | 65 (26) | 1.000 |
| AC HD (s) | 65 (45) | 71 (25) | 1.000 | 63 (20) | 1.000 |
| Whole-Leg HD (s) | 77 (19) | 99 (22) | 1.000 | 105 (29) | 0.913 |
Two identical PASL scans were conducted to assess repeatability of the measured hyperemic response. Results shown are average (standard deviation). Reported P-value is for comparison between PASL and pCASL results. Gastroc, gastrocnemius muscle; AC, anterior compartment; TTP, time to peak; HFV, hyperemic flow volume; HD, hyperemic duration.