Table 1.
FUS and fUSI equipment and acoustic parameters.
| FUS | |
|---|---|
|
| |
| Focal Size (−6 dB) | H-204: 0.8 mm (lateral), 8 mm (axial) |
| H-215: 0.3 mm (lateral), 2 mm (axial) | |
| Acoustic Parameters | Carrier Frequency: |
| H-204: 1.68 MHz (3rd Harmonic) | |
| H-215: 4 MHz | |
| Amplitude Modulation Freq: 1 kHz | |
| Burst Duration: 150 ms | |
| Sonication Frequency: | |
| H-204: 1 Hz | |
| H-215: 2 Hz | |
| Peak Negative Pressures: | |
| 0.8–2.6 MPa (Derated, transcranial, H204) | |
| 0.7–2.8 MPa (Cranial window, H204) | |
| 1.4–3.6 MPa (Cranial window, H215) | |
|
| |
| fUSI | |
|
| |
| Acoustic Parameters | Center frequency: 15.0 MHz |
| Compounded Plane Wave Imaging | |
| Plane Angles: 5 (−6° to 6°) | |
| Compounded Image Rate: 500 Hz | |
| Compounded Images in PDI: | |
| 200 (transcranially) | |
| 70 (craniotomized) | |
|
| |
| Filtering | Singular Value Decomposition: 10% of singular values removed |
| High-Pass Filter: Butterworth (2nd order), 8-Hz cutoff frequency | |