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Table 2 Typical OAR optimization parameters for IMRT

From: Optimal organ-sparing intensity-modulated radiation therapy (IMRT) regimen for the treatment of locally advanced anal canal carcinoma: a comparison of conventional and IMRT plans

Organ

Threshold dose (Gy)

Volume above limit (%)

Bladder

30

80

 

40

40

 

0

50

Small Bowel

30

40

 

40

30

 

0

50

Genitalia/perineum

30

35–45

 

40

5–10

 

0

48

Iliac crests

10

35–45

 

20

25–30

 

0

50

Femoral heads

45

5

 

0

55

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Radiation Oncology

ISSN: 1748-717X

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