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Table 1 Dose constraints for patients treated to 79.8 Gy for localized prostate cancer.

From: Image guided dose escalated prostate radiotherapy: still room to improve

PTV

ICRU point dose 79.8 Gy

 

Dose to 99% of volume (D99): 75.6 Gy

 

Maximum: 81.4 Gy ≤ contiguous 2 cm3.

Bladder wall

70% volume receives less than 70 Gy.

 

50% volume receives less than 55 Gy.

Rectal wall

70% volume receives less than 70 Gy;

 

50% volume receives less than 55 Gy.

Right/Left femoral head

Maximum dose 55 Gy