Table 1.
Quantitative values of physical acoustic properties. Mean values along with standard deviations of the measured properties are provided for proliferating cells (G1, G2, metaphase) and apoptotic cells (early and late apoptosis), with water serving as a reference. N = 58 for each group.
| Cell State | Cell Height (μm) | Sound Speed (m/s) | Acoustic Impedance (MRayls) | Density (kg/m3) | Adiabatic Bulk Modulus (GPa) | Attenuation (dB/cm/MHz) | Number of Cells |
|---|---|---|---|---|---|---|---|
| Growth 1 (G1) | 9.4 ± 1.5 | 1565 ± 20 | 1.555 ± 0.014 | 993 ± 18 | 2.43 ± 0.03 | 1.20 ± 0.18 | 58 |
| Growth 2 (G2) | 11.4 ± 1.7 | 1572 ± 17 | 1.557 ± 0.011 | 991 ± 14 | 2.45 ± 0.03 | 1.05 ± 0.18 | 58 |
| Metaphase | 19.4 ± 2.5 | 1563 ± 13 | 1.537 ± 0.007 | 983 ± 10 | 2.40 ± 0.02 | 0.87 ± 0.18 | 58 |
| Early Apoptotic | 14.0 ± 2.1 | 1588 ± 18 | 1.542 ± 0.010 | 971 ± 13 | 2.45 ± 0.03 | 2.16 ± 0.40 | 58 |
| Late Apoptotic | 10.0 ± 1.6 | 1559 ± 31 | 1.540 ± 0.014 | 988 ± 22 | 2.40 ± 0.05 | 1.52 ± 0.36 (High Group) 0.56 ±0 .19 (Low Group) | 58 |
| Water29 | — | 1521 | 1.510 | 993 | 2.31 | 0.0014 | — |