Table 2.

Measured imaging doses per fraction to the breast with daily MV‐MV and MV‐CBCT imaging using the maximum field size of 28 × 28 cm²

Breast of interest	Relative position to treatment site	MV‐MV (cGy)		MV‐CBCT (cGy)
		Low‐dose	High‐quality	Low‐dose	High‐quality
Left	Ipsilateral	2.15	4.32	4.82	9.71
Right		1.71	3.40	4.76	9.64
Left	Contralateral	1.35	2.76	2.85	5.77
Right		0.41	0.83	2.83	5.72