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Table 3 Parameters

From: Dose distribution of intensity-modulated proton therapy with and without a multi-leaf collimator for the treatment of maxillary sinus cancer: a comparative effectiveness study

ROI name

Description

Weight

Robust

CTV

Min DVH 6600 cGy to 95% volume

50

+

CTV

Max DVH 7042 cGy to 10% volume

10

CTV

Max DVH 7920 cGy to 2% volume

10

CTV

Min DVH 6138 cGy to 98% volume

10

Optic chiasm + 3 mm

Max DVH 5400 cGy to 2% volume

10

Optic chiasm

Max DVH 5400 cGy to 2% volume

5

Pituitary gland

Max DVH 4500 cGy to 2% volume

1

Brainstem + 3 mm

Max DVH 5000 cGy to 2% volume

5

Brainstem

Max DVH 5000 cGy to 2% volume

2

Posterior retina in both eyes

Max DVH 4500 cGy to 2% volume

5

Parotid gland on both sides

Max EUD 3000 cGy

1

Optic nerve in both eyes + 3 mm

Max DVH 5400 cGy to 2% volume

5

Optic nerve in both eyes

Max DVH 5400 cGy to 2% volume

10

Lens in both eyes

Max DVH 600 cGy to 2% volume

1

Lachrymal gland in both eyes

Max EUD 3000 cGy

5

Both eyeballs

Max DVH 4500 cGy to 2% volume

3

Cochlea on both sides

Max DVH 4500 cGy to 2% volume

3

Cochlea on both sides + 3 mm

Max DVH 4500 cGy to 2% volume

1

Body contour

Max DVH 7042 cGy to 2% volume

5

  1. ROI region of interest, CTV clinical target volume, DVH dose volume histogram, EUD equivalent uniform dose, Max maximum, Min minimum