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Differences in the target coverage and homogeneity from the original plan by moving beam isocenters by 5 mm in the anterior or posterior direction
Data are presented as mean±SD.
Dmean=mean dose of the target volume for evaluation (TV_EV); Vx=the volume of the TV_EV receiving by X% of the prescription dose or greater; FIF=field-in-field; IMRT=intensity-modulated radiotherapy.
*Indicate statistically significant differences.
