Table 1. Input Parameters .
| Parameter | Input Value | Input Value Specific Per OR Setting | Source | |
| Conventional(Range) | Hybrid(Range) | |||
| General | ||||
| Surface of OR (m2) | 48.5 (40.6-57.0) | 85.4 (52.3-106.2) | Hospital data | |
| OR availability per year (min) | 122 400 | 122 400 | Hospital data and available hours assumed to be the same for the hybrid OR | |
| Utilization rate of OR (%) | 92 (87-96)a | 43 (14-55)a,b | ||
| Construction | ||||
| Costs for a general m2 in a hospital (€) | 3 479 | 21 | ||
| Differentiation rate over a general square meter in a hospital per category (%): | ||||
| OR department | 160 | 21 and expert opinion | ||
| Holding | 140 | |||
| Recovery | 140 | |||
| Corridor and offices | 75 | |||
| Technical rooms | 75 | |||
| Sanitary/washing rooms | 100 | |||
| Annual interest (%) | 4.2 | 20 | ||
| Lifespan (y) | 25 | 20 | ||
| Maintenance (%) | 5 | 20 | ||
| Inventory | ||||
| Lifespan (years) | 10 | 20 | ||
| Maintenance for general inventory (%) | 5 | 20 | ||
| Maintenance for medical imaging devices (%) | 8 | Expert opinion | ||
| Personnel | ||||
| Costs per hour (€) academic setting | ||||
| Medical specialist | 117.59 | 20,23 | ||
| Medical assistant | 36.84 | |||
| Technician | 36.84 | |||
| Costs per hour (€) general hospital | ||||
| Medical specialist | 120.71 | 20,23 | ||
| Medical assistant | 38.06 | |||
| Technician | 38.06 | |||
| Annual loaded working hours | 20 | |||
| Medical specialist | 2 100 | |||
| Medical assistant | 1 558 | |||
| Technician | 1 558 | |||
| Overhead | ||||
| Calculated over construction and personnel (%) | 38 | 20 | ||
Abbreviation: OR, operating room.
aBased on only 4 hospitals.
bUtilization rate of hybrid OR has a slightly different definition than the utilization rate of the conventional OR: annual number of procedures with the use of the C-arm divided by the total annual procedures in the hybrid OR, multiplied with the utilization rate of a conventional OR.