Table 2.
Summary of acoustic parameters. F-number is defined as the ratio of focal depth to active aperture width and describes the imaging system focal properties. These parameters are necessary for generation of acoustic force and accurate displacement tracking for shear wave estimation.
| Parameter | Value |
|---|---|
| Probe | P128 |
| Push Frequency (MHz) | 6.15 |
| Track Frequency (MHz) | 7.27 |
| Push Cycles | 400 |
| Pulse Duration | 65μs |
| Track Pulse Repetition | 10330Hz |
| Frequency | |
| Push F-number | 1.0 |
| Track F-number | 1.5 |
| Push focal depth | 0.6cm |
| MI | 1.9 |