Table 1.
Resource use and unit costs.
| Resource use | Probability distributiona | Unit costsb | ||
|---|---|---|---|---|
| Conventional OR | LF-iMR | |||
| OR | ||||
| Time in minutes [mean (SD)] | 368 (75) | 415 (70) | Gamma | 5 € |
| Surgical pack [% (n)] | 100 (146) | 100 (50) | n.v. | 1,150 € |
| Navigation system [%o(n)] | 0 (0) | 100 (50) | n.v. | 862 € |
| Prosthesis [% (n)] | 92 (134) | 88 (44) | Beta | 272 € |
| LF-iMR [% (n)] | 0 (0) | 100 (50) | n.v. | 1M €c
833 €d |
| ICU | ||||
| % (n) | 67 (98) | 34 (17) | Beta | 555 € |
| Preoperative images [mean (SD)] | ||||
| MR-C | 1.2 (0.9) | 1.0 (0.9) | Gamma | 203 € |
| MR | 2.0 (1.63) | 1.7 (1.7) | 138 € | |
| PET | 0.1 (0.2) | 0.1 (0.3) | 566 € | |
| X-Ray | 1.3 (1.6) | 1.1 (1.2) | 15 € | |
| Portable XRay | 0.03 (0.2) | 0.1 (0.5) | 32 € | |
| CT | 0.5 (0.6) | 0.4 (0.6) | 72 € | |
| Postoperative images [mean (SD)] | ||||
| MR-C | 3.0 (1.7) | 2.5 (1.7) | Gamma | 203 € |
| MR | 3.5 (1.8) | 3.1 (1.6) | 138 € | |
| X-Ray | 1.1 (2.9) | 1.7 (3.5) | 15 € | |
| Portable XRay | 0.9 (1.2) | 0.3 (0.9) | 32 € | |
| SPECT | 0.1 (0.1) | 0.1 (0.3) | 166 € | |
| CT | 1.1 (2.9) | 0.7 (1.4) | 72 € | |
| Hospitalization | ||||
| Length of stay in days [mean (SD)] | 11.9 (7.8) | 9.7 (5.4) | Gamma | 422 € |
ICU, Intensive care unit hospitalization; MR-C, magnetic resonance with contrast; M, Million; n.v., not varied; OR, operating room.
aProbability distribution of every resource use parameter.
bAll cost parameters were varied using the Gamma distribution.
cTotal cost of the iMR device.
dCost per intervention using iMR based on the life cycle (10 years) and the potential number of patients (n = 120) who yearly benefit from the iMR device.