Table 6.

Median differences in D_mean with range for OARs in 4- and 8-beam iCE plans compared to 6-beam iCE plans, all with optimized beam angles. p-values for comparison with 6-beam plans are given, and significant differences are marked with *.

Dose Metric	Difference, 4 vs. 6 Beams			Difference, 8 vs. 6 Beams
	Median	Range	p	Median	Range	p
Lungs Dmean [Gy]	0.2	−2.5, 2.3	0.5	−0.2	−0.8, 0.5	0.004 *
Heart Dmean [Gy]	0.7	−2.3, 4.0	0.007 *	−0.3	−3.9, 1.5	0.02 *
Esophagus Dmean [Gy]	1.2	−4.2, 6.8	0.02 *	−0.7	−2.8, 2.9	<0.001 *