TABLE II.
Detailed Preliminary Results for Ultrasonic Propulsion of Kidney Stones
| Arm | Subject | Number of stones |
Stone size (mm) |
Motion Grading | Total Push Bursts |
Passed Stones | ||
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||
| De- Novo Stones | 1 | 3 | 2 – 3 | 20 | 5 | 0 | 25 | N |
| 2 | 5 | 2 – 3 | 16 | 17 | 4 | 37 | N | |
| 4 | 2 | 2 – 3 | 20 | 1 | 0 | 21 | N | |
| 13 | 1 | 3 – 4 | 1 | 1 | 0 | 2 | N | |
| Post-Lithotripsy* | 6 | Multiple | < 2 | 9 | 23 | 5 | 36 | • 2 fragments (1–2 mm) before leaving clinic • > 14 granules (1 mm) |
| 7 | 5 | < 2 | 16 | 23 | 1 | 40 | • > 10 granules (1 mm) | |
| 8 | Cluster | < 2 | 22 | 12 | 5 | 39 | • 1 fragment (1–2 mm) | |
| 9 | Cluster | 2 – 5 | 14 | 6 | 19 | 39 | N | |
| 13 | 1 | 3 – 4 | 15 | 21 | 2 | 38 | N | |
| Pre-operative | 12 | 2 | 7 | 20 | 7 | 0 | 27 | N/A |
| 15 | 1 | 8 – 9 | 11 | 6 | 0 | 17 | N/A | |
*
Difficult to establish the total number of fragments pushed as they often occurred in clumps of granules.