Table 2. Parameters examined in the study.

CBCT Volume Parameters	Patient/Tumor Parameters	Treatment Parameters
Minimum Volume	Age	Prescribed Dose
Maximum Volume	Lung Volume	ITV Average Cumulative Dose
Days to Minimum Volume	Histology	non-PTV Average Cumulative Dose
Fractions to Minimum Volume	GTV Volume	ITV Average Dose per Fraction
Days to Maximum Volume	ITV Volume	non-PTV Average Dose per Fraction
Fraction to Maximum Volume		ITV ID per Fraction
First CBCT Volume (FCV)		non-PTV ID per Fraction

CBCT, cone-beam CT; PTV, planning target volume; ITV, internal target volume; ID, integral dose