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Table 2 Summary of MRIdianâ„¢ optimization parameters for target volume and OARs

From: Retrospective study comparing MR-guided radiation therapy (MRgRT) setup strategies for prostate treatment: repositioning vs. replanning

Structure

Importance

Power

Threshold (Gy)

Prescription (Gy)

Offset

Lower

Upper

Lower

Upper

Skin

–

1

–

1

21

–

 

Rectum

–

1

–

1

56

–

 

Bladder

–

1

–

1

56

–

 

aPTV

2

2

2

2

–

70

0.5

  1. aPTV planning target volume