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Absolute dose planes at 5 cm depth, 100 cm SDD for (a) measured and (b) calculated dose. (c) 3%G/3 mm gamma with failing points shown as the shaded region over the calculated plane in grayscale. (d) 2%L/2 mm gamma failing points showing a clear pattern of meas < calc, i.e., shaded regions showing gamma failing points. (e) Patient coronal TPS plane, (f) 3DVH-estimated dose differences (3DVH–TPS), and (g) estimated DVH errors showing lower MGDR target dose compared to planned.
