TABLE II.
Transducer center frequency, fc (MHz) | ROI size | Scan step size (mm) | Analysis gate delay, τd (μs) | Analysis gate width, τw (μs) |
---|---|---|---|---|
2.25 | 8 × 8 | 0.91 | 4.78 | 4.44 |
5 | 16 × 16 | 0.62 | 2.80 | 2.00 |
7.5 | 26 × 26 | 0.41 | 2.18 | 1.33 |
10 | 36 × 36 | 0.31 | 1.12 | 1.00 |