Table 1. In-Vitro Comparison of Mean Radiation Dose Using Phantom Device.

	AK/Frame (mGy)	P < 0.05 from Protocol	DAP/Frame (mGycm2)	P < 0.05 from Protocol
Protocol 1	7.84 ± 0.15	3, 4	1318.72 ± 24.33	2, 3, 4
Protocol 2	8.11 ± 0.11	3, 4	1247.85 ± 19.93	1, 3, 4
Protocol 3	4.72 ± 0.10	1, 2	803.48 ± 17.01	1, 2
Protocol 4	4.63 ± 0.04	1, 2	758.22 ± 9.58	1, 2

AK = air kerma, DAP = dose area product