Dosimetric Comparison of Three Radiotherapy Techniques in Irradiation of Left-Sided Breast Cancer Patients after Radical Mastectomy

Table 2

PTV dose parameters of three plans in left-sided breast cancer patients with postmastectomy ().

Technique	No.	D2% (Gy)	D98% (Gy)	Dmean (Gy)	HI	CI	MU	DT (min)
TSP	15
9FIMRT	15	^a	^a	^a	^a	^a	^a	^a
VMAT	15	^b	^b	^b	^b	^b^, c	^b^, c	^b^, c

Abbreviations: a: 9FIMRT vs. TSP; b: VMAT vs. TSP; c: VMAT vs. 9FIMRT; ; TSP: target segmented planning; 9FIMRT: 9 fields IMRT; VMAT: volumetric modulated arc therapy; DT: delivery time.