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Table 1 Dose constraints for OAR

From: Hypofractionated intensity-modulated radiotherapy with concurrent chemotherapy for elderly patients with locally advanced pancreatic carcinoma

Structure

Constraints

Stomach/duodenum

V45 Gy < 1 cc

 

V42 Gy < 5 cc

 

V39 Gy < 25 cc

Stomach + PRV/duodenum + PRV

V39 Gy < 30 cc

 

V36 Gy < 45 cc

Spinal cord

Dmax < 36 Gy

Spinal cord + PRV

D2 cc < 39 Gy

Kidney (at least one)

V20 Gy < 30%

Liver

Dmean < 30 Gy

  1. OAR, organs at risk; PRV, planning organ at risk volume; Dmax, the maximum dose to the structure volume; Dmean, the mean dose to the structure volume; D2 cc, the maximum dose covering ≥ 2 cc of the structure volume; Vxx Gy, the volume of the structure receiving > xx Gy