Fondazione Italiana Linfomi (FIL) expert consensus on the use of intensity-modulated and image-guided radiotherapy for Hodgkin’s lymphoma involving the mediastinum

Table 3 Suggested dose objectives for organs at risk

Structures	Recommended	Required	Avoid maximum dose in
Heart
Whole organ	Mean < 5 Gy	Mean, 5–15 Gy	Coronary vessels
Left ventricle	Mean < 2 Gy	Mean, 5–10 Gy	Coronary vessels
Breasts (whole breasts)	Mean dose < 4 Gy	V4 < 50%	Glandular tissue
Lungs (minus PTV)	V5 < 55%	V₅ 55–60%
	V20 < 30%	V20 < 35%
	Mean dose < 10 Gy	Mean < 13.5 Gy
Thyroid	V5 < 93% V20 < 82% V25 < 63% V30 < 62% 2.2 ml < 25 Gy	V25 < 70%	Whole thyroid

ISSN: 1748-717X