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Table 2 Gross tumor volumes at different fractions of radiotherapy

From: Accumulation of the delivered dose based on cone-beam CT and deformable image registration for non-small cell lung cancer treated with hypofractionated radiotherapy

Variables Fraction 1 Fraction 5 Fraction 9 Fraction 13 Fraction 17
Mean GTV (cm3) 145.1 ± 159.8 139.5 ± 148.9 131.2 ± 140.2 122.9 ± 127.4 117.9 ± 122.2
Median GTV (cm3) 76.5 (10.4–587.2) 73.7 (10.3–501.34) 71.5 (11.2–503) 69.5 (9.5–475.8) 66.1 (10.3–468.1)
Median relative GTV volume 1.0 0.979 (0.854–1.108) 0.938 (0.775–1.077) 0.894 (0.658–1.057) 0.889 (0.560–1.029)
Relative GTV Reduction 0 2.1%(−10.8–14.6%) 6.2%(−7.7–22.5%) 10.6%(−5.7–34.2%) 11.1%(−2.9–44%)
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