Table 1.
Comparison between structures defined by an experienced clinician and those created by SPICE
| Volumes | Heart 1 | Heart 2 | Lung–L | Lung–R |
|---|---|---|---|---|
| Clinician volume (cc) | 586.2 (435.4–779.9) | 2086.7 (1597.6–2548.5) | 2394.6 (1842.4–3094.9) | |
| SPICE volume (cc) | 628.2 (501.5–816.6) | 491.7 (370.8–666.0) | 1960.5 (1471.1–2419.6) | 2261.6 (1711.3–2965.3) |
| Overlap volume (cc) | 562.0 (419.4–749.1) | 442.8 (332.1–606.9) | 1954.2 (1467.2–2411.4) | 2253.7 (1700.3–2945.0) |
| DSC | 0.92 (0.90–0.94) | 0.82 (0.78–0.87) | 0.97 (0.96–0.97) | 0.97 (0.96–0.97) |
| Doses | Heart 1 | Heart 2 |
|---|---|---|
| Clinician mean dose (cGy) | 73.4 (50.5–133.6) | |
| SPICE mean dose (cGy) | 71.5 (51.0–133.1) | 75.5 (50.5–143.0) |
| Difference (cGy) | 0.0 (−10.8–5.4) | 2.4 (−3.8–15.3) |
Values are specified as median (range). The two SPICE‐generated heart structures were compared to a single, clinician‐defined heart for each patient.