Course book Advanced Treatment Planning 2018

Prescribing

• Prescribing to median dose without some restriction on the slope of the target DVH could allow a shallow slope and low target minimum dose

• Need some agreement on minimum acceptable ➢ At least 99% of the volume (D 99 %

) to receive>95% of dose

➢

At least 98% of the volume (D

to receive>95% of dose

98 %)

• Limit on maximum also needed, for example ➢ Less than 1% of the volume >105% of dose