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Table 2 Dose-volume constraints for IMRT plans

From: In vivo surface dose measurement using GafChromic film dosimetry in breast cancer radiotherapy: comparison of 7-field IMRT, tangential IMRT and tangential 3D-CRT

Structure

Type

Rank

Objective

Dose (cGy)

Volume (%)

Weight

PTV

Target

1

Maximum

5200

0

100

PTV

Target

1

Minimum

4900

100

100

Ipsilateral lung

Organ at risk

2

Maximum

2000

20

100

Ipsilateral lung

Organ at risk

2

Minimum

1200

30

100

Heart

Organ at risk

3

Maximum

4500

0

100

Unspecified tissue

Organ at risk

4

Maximum

4500

0

100