Table 1.
Summary features of neoplasms analyzed for machine learning–augmented radiomics analysis
| Characteristic | All tumors (n = 44) |
|---|---|
| Age (years)* | 53.70 ± 16.05 (16–80) |
| Sex | |
| Males | 19/44 (43.18%) |
| Females | 25/44 (56.82%) |
| Anatomic location | |
| Shoulder | 1/44 (2.27%) |
| Arm | 4/44 (9.09%) |
| Forearm | 1/44 (2.27%) |
| Wrist | 1/44 (2.27%) |
| Groin | 2/44 (4.55%) |
| Hip | 1/44 (2.27%) |
| Pelvis/buttock | 4/44 (9.09%) |
| Thigh | 21/44 (47.23%) |
| Calf | 3/44 (6.82%) |
| Knee | 1/44 (2.27%) |
| Ankle | 1/44 (2.27%) |
| Foot | 2/44 (4.55%) |
| Retroperitoneum | 2/44 (4.55%) |
| Histologic subtypes | |
| Undifferentiated pleomorphic sarcoma | 17/44 (38.64%) |
| Dedifferentiated liposarcoma | 2/44 (4.55%) |
| Myxoid liposarcoma | 4/44 (9.09%) |
| Pleomorphic liposarcoma | 1/44 (2.27%) |
| Leiomyosarcoma | 4/44 (9.09%) |
| Myxofibrosarcoma | 2/44 (4.55%) |
| Embryonal rhabdomyosarcoma | 1/44 (2.27%) |
| Pleomorphic rhabdomyosarcoma | 1/44 (2.27%) |
| Extraskeletal Ewing sarcoma | 2/44 (4.55%) |
| Extraskeletal osteosarcoma | 2/44 (4.55%) |
| Malignant peripheral nerve sheath tumor | 2/44 (4.55%) |
| Synovial sarcoma | 6/44 (13.64%) |
| Histologic grade | |
| High | 41/44 (93.18%) |
| Low | 3/44 (6.82%) |
| Surgical margins | |
| Positive | 26/44 (59.09%) |
| Marginal | 7/44 (15.91%) |
| Negative | 6/44 (13.64%) |
| Not specified | 5/44 (11.36%) |
| NAC response | |
| Responder | 23/44 (52.27%) |
| Non-responder | 21/44 (47.73%) |
all data are presented as numerators and denominators with percentages in parentheses unless otherwise specified
*Data presented as mean age in years ± standard deviation with range reported in parentheses
NAC neoadjuvant chemotherapy