Table 1.
Average Values for Various Imaging and Participant Characteristics (N = 165)
| Average Value (SD) | |
|---|---|
|
| |
| UST Sound Speed Image Characteristics | |
|
| |
| UST Mean Sound Speed (m/s) | 1450.2 (14.5) |
| UST Median Sound Speed (m/s) | 1446.0 (15.4) |
| UST Modal Sound Speed (m/s) | 1440.0 (16.7) |
| UST Total Volume (cm3) | 777.5 (478.6) |
|
| |
| Mammographic Image Characteristics | |
|
| |
| Mammographic Percent Density (%) | 22.4 (18.0) |
| Mammographic Dense Projected Area (cm2) | 41.9 (31.4) |
| Mammographic Non-Dense Projected Area (cm2) | 185.1 (105.0) |
| Mammographic Total Projected Area (cm2) | 227.0 (102.7) |
|
| |
| UST K-Means Clustering Subregion Characteristics | |
|
| |
| K-Means Mean Dense Sound Speed (m/s) | 1480.1 (16.5) |
| K-Means Mean Non-Dense Sound Speed (m/s) | 1439.9 (10.8) |
| K-Means Dense Volume (cm3) | 180.1 (110.4) |
| K-Means Non-Dense Volume (cm3) | 592.9 (405.8) |
| K-Means Percent Density (%) | 25.3 (10.5) |
|
| |
| UST Threshold Subregion Characteristics | |
|
| |
| Threshold Mean Dense Sound Speed (m/s) | 1481.1 (7.5) |
| Threshold Mean Non-Dense Sound Speed (m/s) | 1438.6 (5.1) |
| Threshold Dense Volume (cm3) | 163.6 (125.3) |
| Threshold Non-Dense Volume (cm3) | 609.5 (427.7) |
| Threshold Percent Density (%) | 25.5 (19.7) |
|
| |
| Participant Characteristics | |
|
| |
| Participant Age (years) | 51.4 (8.0) |
| Participant Height (inches) | 64.4 (3.3) |
| Participant Weight (pounds) | 184.0 (45.6) |
| Participant BMI (kg/m2) | 31.2 (7.7) |
| Time Between Mammogram and UST Scan (days) | 42 (23) |