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Table 2 The mean gamma pass rates (3%, 3 mm) of global volume and selected organs in 3D-ADV for the 20 NPC IMRT/VMAT plans (Std indicated the standard deviation)

From: Comparison of 3D anatomical dose verification and 2D phantom dose verification of IMRT/VMAT treatments for nasopharyngeal carcinoma

Cases

Global

PTVnx

PTV1

PTV2

Brainstem

Spinal cord

Parotid gland-L

Parotid gland-R

Mean pass rate ± Std.

99.75 ± 0.21

83.82 ± 16.98

90.68 ± 9.34

93.71 ± 6.22

96.93 ± 4.58

65.69 ± 20.54

97.33 ± 3.72

98.08 ± 2.29