ASMR

Case 2 - Bladder

• Offline setup corrections: •

Systematic setup becomes 3 times smaller

• •

Random setup remains the same Organ motion remains the same

• Online setup corrections: •

Systematic and random setup become zero

•

Organ motion remains the same • Margin when doing offline or online setup corrections: 41 mm 

• Because organ motion is so much larger than setup, almost no effect of setup correction protocols on the margin