Table 2.
p-Tm:YAG energy consumption for stone dust from human urinary stones
| Mean measurement | Stone composition | Laser setting (200 J@10W) | One-way ANOVA for laser settings within each stone composition | ||
|---|---|---|---|---|---|
| 0.1 J × 100 Hz | 0.4 J × 25 Hz | 2.0 J × 5 Hz | |||
| Energy per ablated mass (J/mg) (95% CI) | COM |
26.1 (14.7–37.5) |
18.2 (10.8–25.6) |
16.8 (5.4–28.1) |
p = 0.20 |
| UA |
32.2 (2.7–61.8) |
23.0 (15.5–30.5) |
17.0 (12.4–21.6) |
p = 0.27 | |
| Student’s t test for each laser setting | p = 0.61 | p = 0.24 | p = 0.95 | – | |
| Energy per estimated ablated volume* (J/mm3) (95% CI) | COM |
53.2 (29.9–76.5) |
37.0 (21.9–52.2) |
34.1 (11.0–57.3) |
p = 0.20 |
| UA |
49.8 (4.2–95.5) |
35.6 (24.0–47.2) |
26.3 (19.2–33.4) |
p = 0.27 | |
| Student’s t test for each laser setting | p = 0.86 | p = 0.84 | p = 0.40 | – | |
*Volume estimated using prior reported stone density of natural human urinary stones[36]