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Comparison of approximations of two non-invasive MRgFUS thermal diffusivity estimation methods.
| Parameter | Gaussian Temperature | Gaussian SAR |
|---|---|---|
| FUS power deposition pattern | Transverse: Radial Gaussian Axial: Gaussian |
Transverse: Radial Gaussian Axial: Uniform |
| Heating | Instantaneous | Short duration |
| Pennes’ perfusion | Constant, Homogeneous | Negligible |
| Tissue properties | Homogeneous | Homogeneous |
