Table 3.
Preoperative questionnaires given to surgeon.
| Preoperative questionnaires to surgeons' evaluating imaging using both IRIS™ and CT scan | R.E.N.A.L. nephrometry score |
All patients for IRIS™ (n=31) | ||
|---|---|---|---|---|
| 4–6 (n=8) | 7–9 (n=15) | 10–12 (n=8) | ||
| Which part of the renal anatomy was IRIS™ with CT scan helpful to achieve good spatial sensation | ||||
| Tumor location | 7 (87.5) | 15 (100.0) | 8 (100.0) | 30 (96.8) |
| Renal artery identification | 7 (87.5) | 15 (100.0) | 8 (100.0) | 30 (96.8) |
| Renal vein identification | 8 (100.0) | 15 (100.0) | 8 (100.0) | 31 (100.0) |
| Tumor depth identification | 7 (87.5) | 15 (100.0) | 8 (100.0) | 30 (96.8) |
| Relationship of tumor to surrounding structures | 6 (75.0) | 15 (100.0) | 8 (100.0) | 29 (93.5) |
| Which part of the operation were you satisfied with the information available using IRIS™ and CT scan | ||||
| Identification of ureter and vessels | 4 (50.0) | 11 (73.3) | 3 (37.5) | 18 (58.1) |
| Identification of tumor location | 6 (75.0) | 15 (100.0) | 8 (100.0) | 29 (93.5) |
| Identification of tumor depth | 6 (75.0) | 14 (93.3) | 8 (100.0) | 28 (90.3) |
| Tumor resection for a complex tumor | 2 (25.0) | 8 (53.3) | 7 (87.5) | 17 (54.8) |
| Aided in planning of off-clamp or segmental clamping | 3 (37.5) | 7 (46.7) | 4 (50.0) | 14 (45.2) |
| Identification of feeding vessel to the tumor | 2 (25.0) | 11 (73.3) | 7 (87.5) | 20 (64.5) |
| Not useful in this procedure | 1 (12.5) | 0 (0) | 0 (0) | 1 (3.2) |
| You are confident that you will successfully complete the planned procedure | 8 (100.0) | 9 (60.0) | 4 (50.0) | 21 (67.7) |
| How long did it take to visualize, assess, and interpret the IRIS™ 3D model with CT scan for the purpose of surgical planning | ||||
| <1 min | 4 (50.0) | 4 (26.7) | 1 (12.5) | 9 (29.0) |
| 2–5 min | 3 (37.5) | 9 (60.0) | 7 (87.5) | 19 (61.3) |
| >5 min | 1 (12.5) | 2 (13.3) | 0 (0) | 3 (9.7) |
| Which artery branch will you select for clamping based on IRIS™ 3D model with CT scan | ||||
| Primary renal artery | 5 (62.5) | 4 (26.7) | 2 (25.0) | 11 (35.5) |
| Secondary branch | 1 (12.5) | 4 (26.7) | 5 (62.5) | 10 (32.3) |
| Tertiary branch | 0 (0) | 3 (20.0) | 1 (25.0) | 4 (12.9) |
| Not applicable | 2 (25.0) | 4 (26.7) | 0 (0) | 6 (19.4) |
| You feel the extra time spent on IRIS™ technology was valuable | ||||
| Yes | 7 (87.5) | 15 (100.0) | 8 (100.0) | 30 (96.8) |
CT, computed tomography; 3D, three-dimensional.
Note: values are presented as n (%).