Table 1 Ultrasonic Propulsion of Kidney Stones - Preliminary Results. All subjects treated with a combination of 50 V and 90V output
| Study Arm | Patient # | Number of Stones | Stone size (mm) | Motion Grading | Total Push Bursts | ||
|---|---|---|---|---|---|---|---|
| 2-3mm | >3mm | Passed stones | |||||
| De-Novo Stones | 1 | 3 | 2-3 | 5 (19%) | 0 | N | 27 |
| 2 | 5 | 2-3 | 16 (41%) | 0 | N | 39 | |
| 3 | 2 | 3 | 1 (4%) | 0 | N | 23 | |
| Post-Lithotripsy | 4 | 2 | 2 | 23 (62%) | 5 (13%) | Y | 37 |
| 5 | 5 | 2-3 | 21 (53%) | 2 (5%) | Y | 40 | |
| 6 | Multiple | < 2 | 12 (30%) | 4 (10%) | Y | 40 | |
| 7 | Multiple | 2-5 | 5 (13%) | 20 (50%) | unclear | 40 | |
| Pre-operative | 8 | 2 | 7 | 7 (26%) | 0 | N/A | 27 |