Table 3.

The ratios of measured to the calculated midplane doses based on the three algorithms

Calculation method	$\frac{{\text{D}}_{\text{mea}}}{{\text{D}}_{\text{cal}}}\pm \text{SD}$
Arithmetical mean algorithm	1.038 ± 0.002
Geomentrical mean algorithm	1.125 ± 0.003
Proposed algorithm	1.033 ± 0.002