Table 1 Tissue properties[2], voxel size = 0.5x0.5x0.685 mm, calculation time = 80 min, thermal properties[3].
From: Acoustic and thermal simulations of tcMRgFUS in patient specific models: validation with experiments
Simulation-Type | Attenuation (Np/cm) | Speed of Sound (m/s) | Density (kg/m3) |
A. Skull Efficiency | avoxel = amin + (amax – amin)(1 – Ø) amin = 0.08, amax = 3.2 | cvoxel = cmin + (cmax – cmin)(1 – Ø) cmin = 1500, cmax = 2100 | dvoxel = Ø x dwater + (1 – Ø)dbone dwater = 1000, dbone = 2100 |
B. Attenuation-only | avoxel = amin + (amax – amin)(1 – Ø) | Homogeneous = 1550 | Homogeneous = 1000 |
C. Phase Aberration-only | Homogeneous = 0.08 | cvoxel = cmin + (cmax – cmin)(1 – Ø) | d’voxel = 1000/cvoxel |
D. Reflection-only | Homogeneous = 0.08 | Homogeneous = 1550 | d’voxel = dvoxel x cvoxel |
E. Attenuation and Reflection | avoxel = amin + (amax – amin)(1 – Ø) | Homogeneous = 1550 | d’voxel = dvoxel x cvoxel |