Table 2.
Acquisition parameters for 2D image performance comparisons between the 2D (IC5‐9‐D) and 3D (RIC5‐9‐D)
| Performance | Scanner control | IC5‐9‐D | RIC5‐9‐D |
|---|---|---|---|
| Depth of penetration | Transmit frequency (Harmonic) | 7/8 MHz | 7/8 MHz |
| Dynamic range | 72 dB | 69 dB | |
| Gain | 37/37 | 24/24 | |
| Contrast response | Transmit frequency (Harmonic) | 7/8 MHz | 7/8 MHz |
| Dynamic range | 72 dB | 69 dB | |
| Gain | 30/35 | 22/14 | |
| Anechoic contrast | Transmit frequency (Harmonic) | 7/8 MHz | 7/8 MHz |
| Dynamic range | 72 dB | 69 dB | |
| Gain* | 32/35 | 22/22 | |
| Image depth* | 5.0 cm | 5.0 cm | |
| Focal zone* | 2.5 cm | 2.5 cm | |
| Spatial resolution | Transmit frequency (Harmonic) | 7/8 MHz | 7/8 MHz |
| Dynamic range | 72 dB | 69 dB | |
| Gain* | 22/22 | 14/14 | |
| Image depth* | 8.0 cm | 8.0 cm | |
| Focal zone* | 4.0 cm | 4.0 cm | |
| Spherical lesion SNR | Transmit frequency (Harmonic) | 8 MHz | 8 MHz |
| Dynamic range | 72 dB | 69 dB | |
| Gain | 23 | 20 | |
| Image depth* | 6.0 cm | 6.0 cm | |
| Focal zone* | 3.0 cm | 3.0 cm |
The listed parameters were applied for the survey mode acquisitions. Gain values were adjusted to avoid any pixel value saturation for the corresponding transmit frequency which were separated by a slash (/). Controls of acquisition parameters with an asterisk (*) were optimized for each specific target when assessing performance in detailed characterization mode.