Course book Advanced Treatment Planning 2018

@RT_physics

Vector shift to the heart

Variable

p-value

HR (shifts away)

Mean lateral shift

<0.001

0.757

ECOG-PS

0.009

1.148

Age

0.214

1.006

Fractionation

<0.001

0.955

Ln(GTV)

<0.001

1.405

As a continuous variable:

HR = 1.091 per mm (p = 0.007)

(positive shifts = shifts towards heart)

Increased risk with increasing shifts towards the heart