| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| normal portal vein doppler flow | 0.71 | 0.2 | 3935 | 57 |
| doppler of portal vein | 1.04 | 0.8 | 5137 | 22 |
| portal vein pulse doppler | 0.06 | 0.9 | 8030 | 55 |
| normal portal vein flow ultrasound | 1.01 | 0.7 | 7671 | 51 |
| normal portal vein flow | 0.22 | 0.1 | 7439 | 28 |
| portal vein doppler radiology | 0.89 | 0.3 | 3738 | 47 |
| portal vein doppler ultrasound | 1.45 | 0.5 | 1217 | 44 |
| main portal vein doppler ultrasound | 0.02 | 0.2 | 8369 | 82 |
| portal vein doppler ultrasound protocol | 0.89 | 0.6 | 7682 | 45 |
| portal vein color doppler | 1.72 | 0.1 | 9273 | 84 |
| normal pulmonary vein doppler | 1.92 | 0.7 | 5125 | 73 |
| portal vein spectral doppler | 0.2 | 0.8 | 8174 | 25 |
| pulmonary vein flow doppler | 1.81 | 0.9 | 8908 | 28 |
| normal portal vein velocity ultrasound | 1.14 | 0.2 | 5156 | 52 |
| portal vein doppler radiopaedia | 1.48 | 0.7 | 3732 | 67 |
| normal portal vein velocity | 1.46 | 0.1 | 9646 | 80 |
| normal main portal vein velocity | 0.69 | 0.2 | 1065 | 69 |
| normal portal vein waveform | 0.32 | 0.4 | 8928 | 26 |
| pulmonary vein inflow doppler | 0.4 | 0.1 | 4659 | 15 |
| doppler studies peripheral veins | 1.75 | 1 | 2418 | 78 |
