Table 4.

IMRT FFF SABR lung results showing the difference in dose between the planned and measured doses for the different fields. Also shown are the percentage of points with a gamma value less than or equal to 1, using a global gamma of 3%/3 mm and 5%/3 mm. Measurements taken with a Delta⁴ are also included.

	1 (145°)	2 (196°)	3 (247°)	4 (298°)	5 (349°)	6 (40°)	7 (91°)	Total
${\mathrm{\Delta }}_{\text{dose}}(\%)$	‐8.7	+2.1	+2.8	‐1.8	‐2.0	+1.2	+0.4	‐0.6
$\gamma \le 1(\%)\hspace{0.17em}\text{at}\hspace{0.17em}3\%/3\hspace{0.17em}\text{mm}\hspace{0.17em}{(\text{Delta}}^4)$	100	100	100	100	100	100	100	100
$\gamma \le 1(\%)\hspace{0.17em}\text{at}\hspace{0.17em}3\%/3\hspace{0.17em}\text{mm}$	87.6	97.8	100.0	100.0	89.3	87.0	92.7	89.5
$\gamma \le 1(\%)\hspace{0.17em}\text{at}\hspace{0.17em}5\%/3\hspace{0.17em}\text{mm}$	89.8	98.0	100	100	90.3	88.8	94.7	99.3