Table 2.
Mean classification accuracies for radiomics only and radiomics + laboratory data.
| Metrics | Training Accuracy Median (Range) % |
Test Accuracy Median (Range) % |
AUC Median (Range) % |
|---|---|---|---|
| SUVs: | |||
| BMB pos. vs. BMB neg. | 69.1 (69.1–70.6) | 69.0 (69.0–69-0) | 0.61 (0.60–0.66) |
| REL ≤ 5% vs. REL > 5% | 54.4 (51.5–58.8) | 72.4 (69.0–72.4) | 0.68 (0.68–0.68) |
| REL ≤ 10% vs. REL > 10% | 69.1 (61.8–70.6) | 69.0 (65.5–72.4) | 0.69 (0.68–0.69) |
| ABS ≤ 5% vs. ABS > 5% | 61.8 (61.8–66.2) | 72.4 (69.0–75.9) | 0.70 (0.69–0.73) |
| ABS ≤ 10% vs. ABS > 10% | 69.1 (67.6–70.6) | 89.7 (86.2–89.7) | 0.75 (0.74–0.75) |
| Radiomics signature: | |||
| BMB pos. vs. BMB neg. | 70.6 (69.1–72.1) | 72.4 (69.0–72.4) | 0.68 (0.61–0.73) |
| REL ≤5 % vs. REL > 5% | 70.6 (66.2–76.5) | 79.3 (79.3–82.8) | 0.77 (0.75–0.84) |
| REL ≤ 10% vs. REL > 10% | 76.5 (72.1–76.5) | 75.9 (72.4–79.3) | 0.80 (0.79–0.85) |
| ABS ≤ 5% vs. ABS > 5% | 73.5 (67.6–73.5) | 72.4 (69.0–79.3) | 0.81 (0.77–0.82) |
| ABS ≤ 10% vs. ABS > 10% | 79.4 (77.8–82.4) | 82.8 (79.3–86.2) | 0.85 (0.83–0.86) |
| Radiomics + Laboratory: | |||
| BMB pos. vs. BMB neg. | 76.5 (71.2–82.4) | 72.4 (69.0–75.9) | 0.76 (0.71–0.81) |
| REL ≤ 5% vs. REL > 5% | 70.6 (67.6–72.1) | 82.8 (79.3–93.1) | 0.82 (0.81–0.84) |
| REL ≤ 10% vs. REL > 10% | 77.9 (71.1–80.9) | 75.9 (72.4–79.3) | 0.84 (0.82–0.87) |
| ABS ≤ 5% vs. ABS > 5% | 75.0 (70.6–79.4) | 75.9 (72.4–79.3) | 0.81 (0.79–0.83) |
| ABS ≤ 10% vs. ABS > 10% | 79.4 (72.1–80.9) | 79.3 (75.0–82.8) | 0.84 (0.82–0.86) |
BMB, bone marrow biopsy; REL, percentage of involvement of cellular bone marrow; ABS, percentage of involvement relative to the entire marrow space.