| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| effacement of the ventral thecal sac | 0.65 | 0.4 | 291 | 100 | 36 |
| effacement | 0.4 | 0.6 | 6862 | 20 | 10 |
| of | 1.74 | 0.1 | 9519 | 10 | 2 |
| the | 1.07 | 0.4 | 6392 | 97 | 3 |
| ventral | 0.14 | 0.2 | 6738 | 63 | 7 |
| thecal | 1.57 | 0.9 | 8022 | 37 | 6 |
| sac | 0.25 | 0.6 | 32 | 93 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| effacement of the ventral thecal sac | 1.27 | 0.6 | 4783 | 87 |
| partial effacement of the ventral thecal sac | 0.37 | 0.4 | 8257 | 30 |
| mild effacement of the ventral thecal sac | 0.98 | 0.6 | 5816 | 55 |
| slight effacement of the ventral thecal sac | 1.58 | 0.5 | 109 | 89 |
| minimal effacement of the ventral thecal sac | 1.74 | 0.2 | 1438 | 87 |
| partial effacement of the anterior thecal sac | 1.33 | 0.3 | 5178 | 30 |
| effacement of the ventral sac | 1.31 | 0.1 | 159 | 34 |
| partial effacement of the thecal sac | 1.99 | 1 | 4209 | 54 |
| effaces the ventral thecal sac | 1.97 | 0.1 | 2242 | 87 |
| effacing the ventral thecal sac | 1.96 | 0.9 | 9355 | 76 |
| effacement of ventral thecal sac symptoms | 1.96 | 0.5 | 1019 | 24 |
| near complete effacement of the thecal sac | 1.27 | 0.6 | 5664 | 5 |
| flattening of the ventral thecal sac | 1.88 | 0.2 | 2808 | 69 |
| mild effacement of the anterior thecal sac | 1.91 | 0.9 | 6310 | 43 |
| flattened ventral thecal sac | 0.58 | 0.5 | 2797 | 92 |
| ventral thecal sac deformity | 1.51 | 0.7 | 4339 | 9 |
| central thecal sac effacement | 0.51 | 1 | 6052 | 78 |
