Table 6.
Comparisons among multi-resolution modeling of tFUS through sheep and human skulls. The local grid was assigned to model the space encompassing both transducer and the focal area.
| Model | Resolution (mm) | Number of Matrices | Number of Nodes | Total Number of Nodes | Physical Field Size (mm3) | Discretized Time Interval (μs) | Number of Time Steps | Estimated Computation Time (s) | |
|---|---|---|---|---|---|---|---|---|---|
| Sheep Skull | Global | 1.0 | 100 × 150 × 125 | 1,875,000 | 4,227,000 | 100 × 150 × 125 | 0.05 | 2,400 | 30 |
| Local | 0.5 | 140 × 140 × 120 | 2,352,000 | ||||||
|
| |||||||||
| Human Skull (Cortical) | Global | 1.0 | 180 × 200 × 175 | 6,300,000 | 8,652,000 | 180 × 200 × 175 | 0.05 | 6,000 | 150 |
| Local | 0.5 | 140 × 140 × 120 | 2,352,000 | ||||||
|
| |||||||||
| Human Skull (Deep brain) | Global | 1.0 | 180 × 200 × 175 | 6,300,000 | 12,780,000 | 180 × 200 × 175 | 0.05 | 6,000 | 225 |
| Local | 0.5 | 180 × 180 × 200 | 6,480,000 | ||||||