Table 2.

Mean three‐dimensional gamma agreement index (GAI) and standard deviation inside the PTV and the body of the patient using Delat⁴ Anatomy option. Mean GAI in the horizontal isocenter slice and mean dose deviation in the isocenter and mean GAI in the phantom (Conventional GAI)

	Prostate	Brain
Body GAI $(3\hspace{0.17em}\text{mm}/5\mathrm{\%})$	$94.0\mathrm{\%}\pm 2.9\mathrm{\%}$	$97.9\mathrm{\%}\pm 1.5\mathrm{\%}$
PTV GAI $(3\hspace{0.17em}\text{mm}/5\mathrm{\%})$	$97.3\mathrm{\%}\pm 2.0\mathrm{\%}$	$94.4\mathrm{\%}\pm 1.7\mathrm{\%}$
Body GAI $(3\hspace{0.17em}\text{mm}/3\mathrm{\%})$	$86.0\mathrm{\%}\pm 5.0\mathrm{\%}$	$95.3\mathrm{\%}\pm 2.1\mathrm{\%}$
PTV GAI $(3\hspace{0.17em}\text{mm}/3\mathrm{\%})$	$83.7\mathrm{\%}\pm 8.8\mathrm{\%}$	$90.6\mathrm{\%}\pm 2.3\mathrm{\%}$
Horizontal slice $(3\hspace{0.17em}\text{mm}/3\mathrm{\%})$	$87.2\mathrm{\%}\pm 5.1\mathrm{\%}$	$95.2\mathrm{\%}\pm 2.3\mathrm{\%}$
Dose deviation (%)	$2.4\mathrm{\%}\pm 2.5\mathrm{\%}$	$1.3\mathrm{\%}\pm 2.1\mathrm{\%}$
Conventional GAI $(3\hspace{0.17em}\text{mm}/3\mathrm{\%})$	$99.8\mathrm{\%}\pm 0.4\mathrm{\%}$	$99.7\mathrm{\%}\pm 0.4\mathrm{\%}$