Table 2.

Statistics of ${\mathrm{d}}_{\text{DRR}}$ (DIBH) and ${\mathrm{d}}_{\text{port}}$ (DIBH)

Measurements	Systematic Uncertainties (cm) From Raw $\mathrm{\Delta }d$				Systematic Uncertainties (cm) From Absolute $\mathrm{\Delta }d$				Random Uncertainties (cm)
	Mean	Max	Min	${\sigma }_s$	Mean	Max	Min	${\sigma }_s$	Mean	Max	Min	${\sigma }_r$
All patients	$-0.26$	0.75	$-1.70$	0.42	0.38	1.70	0	0.32	0.21	0.48	0.08	0.11

$\sigma =\text{standard deviation}$; ${\sigma }_{\mathrm{s}}=\text{standard deviation of the systematic uncertainties}$; ${\sigma }_{\mathrm{r}}=\text{standard deviation of the random uncertainties}$.