Table 1.
Summary of ultrasound ARF-based elastography methods with temporal and spatial modulation characteristics.
| Method | Temporal Modulation | Spatial Modulation | Measurement Location | Measurement Parameters |
|---|---|---|---|---|
| Acoustic Radiation Force Impulse Imaging (ARFI) | Impulse | Single Beam | ROE | • Peak displacement • Time-to-peak displacement • Relaxation time |
| Shear Wave Elasticity Imaging (SWEI) | Impulse | Single Beam | Lateral | Shear wave velocity |
| Vibro-acoustography (VA) | Harmonic | Co-focused Beams | ROE (Remote Hydrophone) | Acoustic emission |
| Harmonic Motion Imaging (HMI) | Harmonic | Single Beam | ROE | Displacement amplitude |
| Radiation Force Creep* | Repeated Impulse | Single Beam | ROE | Displacement creep response |
| Supersonic Shear Imaging | Impulse | Axially Moving Beams | Lateral | Shear wave velocity |
| Shearwave dispersion ultrasound vibrometry (SDUV) | Repeated Impulse | Single Beam | Lateral | Shear wave velocity dispersion |
| Orthogonal dispersion Ultrasound vibrometry (OFUV) | Repeated Impulse | Single Beam | Lateral | Shear wave velocity dispersion |
| Spatially Modulated Ultrasound Radiation Force | Impulse | Spatially Modulated Beam | Lateral | Shear wave velocity |
| Comb-push Ultrasound Shear Elastography (CUSE) | Impulse | Multiple Beams | Lateral | Shear wave velocity |
| Marching CUSE | Impulse | Laterally Moving Beams | Lateral | Shear wave velocity |
*
Radiation force creep methods include KAVE, sonorheometry, MSSER, ViSR, RFIC, and RFICR.