Table 3.

Summary of intrafraction displacement

Displacement Type	Median	Mean	Standard Deviation	Range
Average displacement (mm)	0.60	0.65	0.46	0.1 to 1.25
Maximum displacement (mm)	1.22	1.29	0.67	0.07 to 3.16

The median, mean, standard deviation, and range of average intrafraction displacement and maximum intrafraction displacement as determined by differences between designated pretreatment patient position coordinates and intratreatment patient position coordinates.