TABLE 3.
Procedural Tool Use and Timing
| Procedural Characteristics | Primary CBCT and AF Approach | Primary EMN Approach | P |
|---|---|---|---|
| Navigation time (min) | 26.9 (2-69) | 35 (4-74) | 0.039 |
| EMN system calibration time (min) | — | 5.7 (3-11) | — |
| Biopsy time (min) | 22.4 (9-55) | 25.5 (2-50) | NS |
| No. biopsy tools | 3.1 (1-7) | 3.7 (1-7) | 0.042 |
| No. tissue samples | 10.0 (1-23) | 9.1 (1-18) | NS |
| CBCTs made | 2.2 (1-5) | 1.5 (0-3) | 0.0014 |
| CBCT preparation time (min) | 4.3 (2-10) | 7.9 (3-11) | <0.0001 |
| CBCT segmentation time (min) | 5.3 (2-10) | 6.4 (2-14) | NS |
| Fluoroscopy time (min) | 9.9 (1-22) | 7.3 (2-23) | 0.021 |
Average times and counts, as derived from procedural report forms. Minimum to maximum range in between brackets. Navigation time definition: from start of navigation modality until decision to start biopsy. Primary EMN navigation also includes the calibration process in timing. Biopsy time definition: From stop of navigation until the last biopsy was taken. Biopsy tools and samples are calculated from lesions wherein at least 1 biopsy was taken. CBCTs and fluoroscopy time derived from total amount of procedures.
AF indicates augmented fluoroscopy; CBCT, cone-beam computed tomography; EMN, electromagnetic navigation; NS, nonsignificant.