Table 2.
Vertical paddle motion for small paddles (18 × 24 cm) during the first, second, third and fourth section of 10-s time periods after clamping commencement
| Time period (s) |
0–10 |
10–20 |
20–30 |
30–40 |
0–40 |
|---|---|---|---|---|---|
| Paddle type | Average paddle motion (x̅ ± SD, n) (mm/10 s) | ||||
| GE Senographe Essential (flexible) | 0.21 ± 0.06, 120 | 0.08 ± 0.03, 120 | 0.04 ± 0.01, 120 | 0.03 ± 0.01, 120 | 0.36 ± 0.09, 480 |
| Hologic Lorad Selenia (flexible) | 0.26 ± 0.07, 20 | 0.05 ± 0.01, 20 | 0.03 ± 0.01, 20 | 0.03 ± 0.01, 20 | 0.37 ± 0.08, 80 |
| GE Senographe Essential (fixed) | 0.26 ± 0.07, 120 | 0.06 ± 0.02, 120 | 0.05 ± 0.01, 120 | 0.02 ± 0.01, 120 | 0.39 ± 0.09, 480 |
| Siemens Mammomat Inspiration (fixed) | 0.28 ± 0.08, 20 | 0.13 ± 0.04, 20 | 0.08 ± 0.02, 20 | 0.05 ± 0.02, 20 | 0.54 ± 0.14, 80 |
| Siemens Mammomat Inspiration (flexible) | 0.35 ± 0.11, 20 | 0.13 ± 0.03, 20 | 0.10 ± 0.02, 20 | 0.05 ± 0.01, 20 | 0.63 ± 0.16, 80 |
| Hologic Selenia Dimensions (flexible) | 0.39 ± 0.12,80 | 0.18 ± 0.05,80 | 0.12 ± 0.04,80 | 0.10 ± 0.03,80 | 0.79 ± 0.22,320 |
| Hologic Selenia Dimensions (fixed) | 0.51 ± 0.15, 80 | 0.18 ± 0.05, 80 | 0.11 ± 0.03, 80 | 0.07 ± 0.02, 80 | 0.87 ± 0.22, 320 |
x̅ is the mean; SD, standard deviation; n, number of observations.
Flexible paddles are in italicized text.
Hologic Lorad Selenia, Hologic Selenia is obtained from Hologic, Bedford, MA; GE Senographe Essential is obtained from General Electric Medical Systems, Milwaukee, WI; and Siemens Mammomat Inspiration is obtained from Siemens, Erlangen, Germany.