Table 2.

Individual data of patients with heart exposure from prophylactic breast radiation therapy.

Patientnr.	Age (years)	Heart disease	CT-based beam energy	Skin-heart distance	Exposure
1	65	yes	12 MeV	5,1 cm	Moderate
2	65	yes	9 MeV	4,2 cm	Moderate
3	75	yes	9 MeV	4,0 cm	Distinct
4	75	no	6 MeV	2,6 cm	Moderate
5	75	no	9 MeV	3,7 cm	Distinct
6	65	no	6 MeV	3,1 cm	Moderate**
7	75	no	6 MeV	3,8 cm	Moderate**
8	75	yes	6 MeV	4,0 cm	Moderate**
9	75	yes	6 MeV	3,9 cm	Moderate**
10	75	yes	6 MeV	3,3 cm	Distinct**
11*	64	no	6 MeV	3,9 cm	Moderate**
12*	83	no	6 MeV	3,9 cm	Moderate**

* prostate cancer patient

**when using the standard 9 MeV beam in the absence of CT scan information