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Table 2 Mean radiation dose to normal tissues

From: A comparison of mantle versus involved-field radiotherapy for Hodgkin's lymphoma: reduction in normal tissue dose and second cancer risk

  Thyroid (Gy) Breast (Gy) Lung (Gy) Heart (Gy) PCA* (Gy)
35 Gy Mantle (q1-q3) 34.4 (34.1–34.8) 9.0 (7.7–11.5) 14.7 (14.1–15.7) 24.2 (22.6–26.3) 34.7 (34.1–35.2)
35 Gy IFRT (q1-q3) 34.6 (33.5–35.3) 3.2 (1.8–4.4) 11.2 (9.7–12.9) 17.2 (8.7–22.0) 33.9 (29.4–34.9)
20 Gy IFRT (q1-q3) 19.7 (19.2–20.2) 1.8 (1.0–2.6) 6.4 (5.5–7.3) 9.9 (5.0–13.2) 19.6 (17.2–20.0)
  1. all figures quoted are median values, with first and third quartiles (q1-q3)
  2. * PCA = proximal coronary arteries
  3. † Compared to 35 Gy mantle RT, mean doses were significantly reduced (p < 0.001) for all organs with 35 Gy IFRT and 20 Gy IFRT, except for the mean dose to thyroid, which was not significantly reduced with 35 Gy IFRT.