Table 1.

Each RV parameter listed above is reviewed against the signed plan. Constant (C) parameters are not expected to vary between fields. The software text compares these parameters to each other to ensure sameness. The v subscript denotes parameters entered once, and text‐compared with all entries. Unique (U) parameters are expected to vary between fields. The user is prompted to manually review each value.

Parameter	Check type	Comments/additional checks
Linac	${\mathrm{C}}_v$
Modality	C	Ensure proper modality (i.e., Photon vs electron)
Energy	${\mathrm{C}}_v$
Tolerance table	${\mathrm{C}}_v$
Field approval	C	Verify approval by dosimetrist
Dose Rate	${\mathrm{C}}_v$
Gantry angle	U
Collimator angle	${\mathrm{C}}_v$	Exception: Breast tangents
Lateral Jaws	U
Sup‐Inf Jaws	C
Couch positions	C
Couch angle	C	Used to alert user of non‐coplanar beams
Wedge	U
Bolus	U
Summed Dose per field	U	Difference between the prescription dose and the summed dose per field