Table 2.

Mean and maximum doses to organs at risk. Sample median values.

Organ	Mean dose, Gy		p‐ value	Maximum dose, Gy		p‐ value
	With filter	Without filter		With filter	Without filter
Carina	5.07	5.03	0.4	11.3 11.1	0.3
Cord	1.43	1.57	0.007	7.36 7.65	0.5
Esophagus	2.20	2.35	0.06	12.4 12.6	0.5
Heart	0.81	1.00	0.001	11.5 9.82	0.4
Lung, contralateral	1.35	1.54	0.03	13.9 14.4	0.4