Table 2 The deviation of position, angle, and distance of needles between preoperative plan and intraoperation plan in B-TPS
No. of needles | Deviation of position (mm) | Deviation of angle (°) | Deviation of distance (mm) | ||||||
|---|---|---|---|---|---|---|---|---|---|
Mean | Range | SD | Mean | Range | SD | Mean | Range | SD | |
165 | 4.5 (0.000) | 0–30 | 4.1 | 2.7 (0.000) | 0–20 | 3.0 | 6.9 (0.000) | − 30~28.1 | 6.0 |