Purpose
Methods
Data preparation
Implementation
Calibration with porcine dataset #1
Parameter | Range |
---|---|
Cluster stiffness | 0.4, 0.5, 0.6, 0.7, 0.8 |
Spring stiffness | [0.1, 1.0], with increments of 0.1 |
Particle radius (mm) | 2.2, 2.7, 3.3 |
‘Simulation pressure parameter’ | [1.0, 15.0], with increments of 0.5 |
Validation with porcine dataset #2
Feasibility of modelling pneumoperitoneum in humans
Results
Calibration with porcine data #1
Parameter | Optimal value |
---|---|
Cluster stiffness | 0.6 |
Spring stiffness | 0.5 |
Particle radius (mm) | 2.7 |
Validation with porcine data #2
Pressure (mmHg) | Mean (mm) | Max (mm) |
---|---|---|
Pneumoperitoneum, 4 | 5.8 | 19.4 |
Pneumoperitoneum, 8 | 6.2 | 24.4 |
Pneumoperitoneum, 12 | 5.8 | 23.8 |
Pneumoperitoneum, 16 | 5.3 | 23.5 |
Feasibility of modelling pneumoperitoneum in humans
Intraoperative (mm) | Simulation (mm) | |||||
---|---|---|---|---|---|---|
\(\hbox {U-ASIS}_\mathrm{R}\)
|
\(\hbox {U-ASIS}_\mathrm{L}\)
| XS-PS |
\(\hbox {U-ASIS}_\mathrm{R}\)
|
\(\hbox {U-ASIS}_\mathrm{L}\)
| XS-PS | |
Pre | 180 | 175 | 328 | 163 | 169 | 381 |
Post | 190 | 175 | 374 | 178 | 184 | 416 |
\(\varDelta \)
| 10 | 0 | 46 | 15 | 15 | 35 |