| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| circle of willis transcranial doppler | 0.98 | 1 | 4178 | 1 | 37 |
| circle | 1.49 | 0.7 | 6219 | 87 | 6 |
| of | 2 | 1 | 5846 | 83 | 2 |
| willis | 1.94 | 1 | 7600 | 21 | 6 |
| transcranial | 0.07 | 0.3 | 3054 | 62 | 12 |
| doppler | 0.56 | 0.6 | 5886 | 57 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| circle of willis transcranial doppler | 0.15 | 0.1 | 5275 | 9 |
