Table 2.
Comparison of dose–volume data between original plan and recalculated, repeated weekly four-dimensional computed tomography plan using alignment with skin marker registration or with bony structure
| Original |
Skin registration |
Bone registration |
|||||
|---|---|---|---|---|---|---|---|
| Planned (range) | Total (range) | Expiration (range) | Inspiration (range) | Total (range) | Expiration (range) | Inspiration (range) | |
| Clinical target volume | 99.0 (99.0–99.0) | 95.0 (75.5–98.7) | 94.5 (75.5–97.9) | 95.5 (80.6–98.7) | 97.9 (90.9–99.1) | 97.5 (90.9–99.1) | 98.3 (97.5–99.0) |
| Total lung | |||||||
| V5 (%) | 36.6 (20.9–56.3) | 39.0 (19.2–62.6) | 38.3 (19.2–62.6) | 39.8 (22.2–59.7) | 38.8 (20.0–62.7) | 38.2 (20.0–62.7) | 39.4 (22.3–60.4) |
| V10 (%) | 34.0 (19.4–52.2) | 36.1 (17.8–58.0) | 35.1 (17.8–58.0) | 37.1 (20.6–56.7) | 35.8 (18.6–57.9) | 35.0 (18.6–57.9) | 36.6 (20.6–57.4) |
| V20 (%) | 30.0 (17.2–46.8) | 31.6 (15.9–52.5) | 30.3 (15.9–51.2) | 32.9 (18.3–52.5) | 31.4 (16.7–53.1) | 30.3 (16.7–51.0) | 32.5 (18.4–53.1) |
| V30 (%) | 25.7 (13.4–40.7) | 27.2 (13.4–46.8) | 25.8 (13.4–44.2) | 28.5 (14.2–46.8) | 27.0 (13.7–47.3) | 25.8 (13.7–44.1) | 28.2 (14.4–47.3) |
| Mean(Gy) | 16.4 (9.3–24.1) | 17.3 (8.9–27.3) | 16.5 (8.9–26.2) | 18.0 (9.9–27.3) | 17.1 (9.2–27.4) | 16.5 (9.2–26.0) | 17.7 (9.9–27.4) |
| Contralateral lung | |||||||
| V5 (%) | 11.8 (1.1–37.0) | 16.0 (0.5–41.7) | 18.7 (1.8–40.9) | 13.3 (0.5–41.7) | 15.8 (0.5–41.5) | 18.4 (1.4–40.3) | 13.3 (0.5–41.5) |
| V10 (%) | 10.0 (0.8–33.9) | 13.2 (0.2–38.2) | 15.4 (1.4–37.5) | 11.0 (0.2–38.2) | 13.0 (0.3–38.0) | 15.0 (1.1–36.9) | 11.0 (0.3–38.0) |
| V20 (%) | 6.9 (0.3–30.3) | 9.0 (0.0–34.0) | 10.3 (0.6–33.4) | 7.7 (0.0–34.0) | 8.9 (0.0–33.8) | 10.2 (0.5–32.9) | 7.7 (0.0–33.8) |
| V30 (%) | 4.9 (0.0–27.4) | 6.1 (0.0–33.4) | 10.3 (0.6–33.4) | 1.8 (0.0–4.9) | 6.0 (0.0–32.9) | 10.2 (0.5–32.9) | 1.8 (0.0–4.5) |
| Mean(Gy) | 3.8 (0.2–17.5) | 4.9 (0.1–19.6) | 5.6 (0.3–19.4) | 4.3 (0.1–19.6) | 4.9 (0.1–19.6) | 5.5 (0.3–19.2) | 4.3 (0.1–19.6) |
| Ipsilateral lung | |||||||
| V5 (%) | 59.0 (37.2–89.4) | 58.8 (32.9–91.5) | 55.4 (32.9–91.5) | 62.3 (41.6–79.5) | 59.4 (33.4–95.7) | 55.5 (33.4–90.5) | 63.3 (42.0–95.7) |
| V10 (%) | 55.7 (34.6–85.9) | 55.8 (30.6–88.7) | 52.5 (30.6–88.7) | 59.2 (38.6–78.0) | 56.4 (31.1–94.0) | 52.5 (31.1–87.7) | 60.2 (39.1–94.0) |
| V20 (%) | 50.8 (31.1–80.4) | 51.2 (27.7–83.6) | 48.1 (27.7–83.6) | 54.3 (34.9–74.8) | 51.8 (28.1–90.2) | 48.2 (28.1–82.8) | 55.5 (35.4–90.2) |
| V30 (%) | 44.8 (28.4–71.9) | 45.5 (25.5–74.9) | 42.8 (25.5–74.9) | 48.2 (31.9–68.4) | 46.0 (25.8–82.7) | 42.7 (25.8–74.3) | 49.3 (32.4–82.7) |
| Mean(Gy) | 27.9 (18.6–41.0) | 28.1 (16.8–42.8) | 26.4 (16.8–42.8) | 29.8 (20.7–38.9) | 28.3 (16.9–46.6) | 26.3 (16.9–42.2) | 30.3 (21.0–46.6) |
| Spine cord | |||||||
| Dmax(Gy) | 41.7 (34.0–44.7) | 48.2 (34.8–63.1) | 48.2 (34.8–63.1) | 48.2 (34.9–62.9) | 46.1 (35.1–57.9) | 46.7 (36.3–57.9) | 45.6 (35.1–56.1) |
| D1 (cGy) | 32.1 (25.2–35.1) | 39.4 (31.0–53.8) | 39.1 (31.0–53.8) | 39.6 (32.6–52.9) | 37.4 (31.3–44.0) | 37.6 (31.3–43.9) | 37.2 (32.0–44.0) |
| Heart | |||||||
| V10 (%) | 22.2 (3.1–38.2) | 25.6 (1.7–48.2) | 23.5 (1.7–44.7) | 27.7 (10.2–48.2) | 24.4 (4.0–46.6) | 23.1 (4.0–41.4) | 25.8 (6.0–46.6) |
| V20 (%) | 16.6 (1.3–28.8) | 19.6 (0.6–41.1) | 18.1 (0.6–38.1) | 21.2 (7.2–41.1) | 18.7 (2.2–40.3) | 17.7 (2.2–35.6) | 19.6 (3.7–40.3) |
| V30 (%) | 13.4 (0.3–21.8) | 15.9 (0.2–33.6) | 15.0 (0.2–31.3) | 16.9 (2.6–33.6) | 15.1 (0.8–32.3) | 14.5 (0.8–28.7) | 15.6 (2.3–32.3) |
| V40 (%) | 10.7 (0.1–17.8) | 12.7 (0.1–28.4) | 11.9 (0.1–25.9) | 13.6 (1.8–28.4) | 12.2 (0.4–26.8) | 11.7 (0.4–23.4) | 12.6 (1.3–26.8) |
| Esophagus | |||||||
| V30 (%) | 42.8 (35.1–52.6) | 43.5 (34.5–57.5) | 43.8 (34.5–57.5) | 43.2 (36.1–54.3) | 43.2 (35.8–58.0) | 43.8 (36.1–58.0) | 42.7 (35.8–55.6) |
| V40 (%) | 39.0 (32.9–46.3) | 36.0 (29.0–43.1) | 36.1 (29.0–43.1) | 36.0 (29.5–40.4) | 35.7 (30.5–44.8) | 36.2 (30.5–44.8) | 35.2 (30.6–44.0) |
| V55 (%) | 32.8 (28.4–38.5) | 33.7 (26.9–41.1) | 33.8 (26.9–41.1) | 33.6 (27.2–38.1) | 33.6 (28.0–42.7) | 34.2 (28.0–42.7) | 33.0 (28.5–41.5) |