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. 2016 Jan 11;16(1):22–32. doi: 10.1177/1533034615624311

Table 2.

Dosimetric Comparisons of Regions of Interests Between FB and DIBH Plans for Breast and CW Patients.

	Breast			CW with nodes
	DIBH	FB	P	DIBH	FB	P
CW excursion, cm	6.26 ± 0.93	4.60 ± 1.09	.0097^a	5.10 ± 0.80	3.60 ± 1.10	.0043^a
Heart mean, Gy	0.90 ± 0.18	1.30 ± 0.49	.0672	1.90 ± 0.90	5.20 ± 2.00	.0143^a
Heart maximum, Gy	9.96 ± 3.88	32.16 ± 10.45	.0002^a	39.50 ± 10.50	47.60 ± 4.80	.0686
Left lung V₂₀, %	11.20 ± 4.21	11.11 ± 4.87	.9725	28.10 ± 3.10	28.30 ± 6.70	.9404
Left lung volume, cm³	2055.39 ± 384.70	1181.34 ± 279.21	.0004^a	1803.1 ± 355.50	1117.1 ± 300.80	.0010^a
Left lung mean dose, Gy	6.61 ± 1.75	6.58 ± 2.19	.975	13.94 ± 1.88	15.31 ± 1.85	.164
Total lung V₂₀, %	5.10 ± 1.90	4.89 ± 2.27	.8513	13.20 ± 1.20	12.70 ± 2.90	.6703
Total lung volume, cm³	4490.14 ± 723.07	2711.06 ± 541.93	.0001^a	3833.8 ± 695.00	2471.8 ± 603.60	.0009^a
Total lung mean dose, Gy	3.05 ± 0.80	2.90 ± 1.04	.771	6.67 ± 0.82	7.03 ± 0.78	.376

Abbreviations: CW, chest wall; DIBH, deep inspiration breath-hold; FB, free breathing.

^a P < .05. Two samples being significantly different (Student t test, 2 tailed, 2-sample equal variance).